Release version 1.2.0

cy.scrollTo('bottom') threw on CI ("element is not scrollable") whenever
the rendered page fit inside the viewport. Pass ensureScrollable:false
so the call is a no-op on short pages — the footer is already in view
and the subsequent rect-position pre-check enforces the actual
precondition that chooseDirection() needs.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.claude/.gitignore

@@ -0,0 +1,3 @@
+*
+!.gitignore
+!.settings.json

.claude/settings.json

@@ -0,0 +1,52 @@
+{
+  "permissions": {
+    "allow": [
+      "Read",
+      "Edit",
+      "Write",
+      "Bash(*)",
+      "Read(//tmp/**)",
+      "WebSearch",
+      "WebFetch(domain:github.com)",
+      "WebFetch(domain:raw.githubusercontent.com)",
+      "WebFetch(domain:api.github.com)",
+      "WebFetch(domain:docs.docker.com)",
+      "WebFetch(domain:pypi.org)",
+      "WebFetch(domain:docs.cypress.io)",
+      "WebFetch(domain:flask.palletsprojects.com)",
+      "Skill(update-config)",
+      "Skill(update-config:*)"
+    ],
+    "deny": [
+      "Bash(git push --force*)",
+      "Bash(git reset --hard*)",
+      "Bash(rm -rf*)",
+      "Bash(sudo*)"
+    ],
+    "ask": [
+      "Bash(git push*)",
+      "Bash(docker run*)",
+      "Bash(curl*)"
+    ],
+    "additionalDirectories": [
+      "/tmp"
+    ]
+  },
+  "sandbox": {
+    "enabled": true,
+    "autoAllowBashIfSandboxed": true,
+    "filesystem": {
+      "allowWrite": [
+        ".",
+        "/tmp"
+      ],
+      "denyRead": [
+        "~/.ssh",
+        "~/.gnupg",
+        "~/.kube",
+        "~/.aws",
+        "~/.config/gcloud"
+      ]
+    }
+  }
+}

.github/workflows/ci.yml

@@ -0,0 +1,90 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - "**"
+    tags-ignore:
+      - "**"
+
+permissions:
+  contents: read
+
+jobs:
+  security:
+    name: Run security workflow
+    uses: ./.github/workflows/security.yml
+    permissions:
+      contents: read
+      packages: read
+      security-events: write
+
+  tests:
+    name: Run test workflow
+    uses: ./.github/workflows/tests.yml
+
+  lint:
+    name: Run lint workflow
+    uses: ./.github/workflows/lint.yml
+    permissions:
+      contents: read
+      security-events: write
+
+  publish:
+    name: Publish image
+    runs-on: ubuntu-latest
+    needs:
+      - security
+      - tests
+      - lint
+    if: github.event_name == 'push'
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          fetch-depth: 0
+
+      - name: Detect semver tag on current commit
+        id: semver
+        run: |
+          SEMVER_TAG="$(git tag --points-at "$GITHUB_SHA" | grep -E '^v[0-9]+\.[0-9]+\.[0-9]+$' | head -n 1 || true)"
+          if [ -n "$SEMVER_TAG" ]; then
+            {
+              echo "found=true"
+              echo "raw_tag=$SEMVER_TAG"
+              echo "version=${SEMVER_TAG#v}"
+            } >> "$GITHUB_OUTPUT"
+          else
+            echo "found=false" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Compute image name
+        if: steps.semver.outputs.found == 'true'
+        id: image
+        run: echo "name=ghcr.io/$(echo "${GITHUB_REPOSITORY}" | tr '[:upper:]' '[:lower:]')" >> "$GITHUB_OUTPUT"
+
+      - name: Set up Docker Buildx
+        if: steps.semver.outputs.found == 'true'
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GHCR
+        if: steps.semver.outputs.found == 'true'
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and publish image
+        if: steps.semver.outputs.found == 'true'
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ${{ steps.image.outputs.name }}:${{ steps.semver.outputs.version }}

.github/workflows/lint.yml

@@ -0,0 +1,77 @@
+name: Lint
+
+on:
+  workflow_call:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  lint-actions:
+    name: Lint GitHub Actions
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Run actionlint
+        run: docker run --rm -v "$PWD:/repo" -w /repo rhysd/actionlint:latest
+
+  lint-python:
+    name: Lint Python
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+
+      - name: Install lint dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install ".[dev]"
+
+      - name: Ruff lint
+        run: ruff check .
+
+      - name: Ruff format check
+        run: ruff format --check .
+
+  lint-docker:
+    name: Lint Dockerfile
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      security-events: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Run hadolint
+        id: hadolint
+        continue-on-error: true
+        uses: hadolint/hadolint-action@2332a7b74a6de0dda2e2221d575162eba76ba5e5
+        with:
+          dockerfile: ./Dockerfile
+          format: sarif
+          output-file: hadolint-results.sarif
+          failure-threshold: warning
+
+      - name: Upload hadolint SARIF
+        if: always() && github.event_name == 'push'
+        uses: github/codeql-action/upload-sarif@v4
+        with:
+          sarif_file: hadolint-results.sarif
+          wait-for-processing: true
+          category: hadolint
+
+      - name: Fail on hadolint warnings
+        if: always()
+        run: python3 utils/check_hadolint_sarif.py hadolint-results.sarif

.github/workflows/security.yml

@@ -0,0 +1,48 @@
+name: Security
+
+on:
+  workflow_call:
+
+permissions:
+  contents: read
+
+jobs:
+  analyze:
+    name: Run security scan
+    runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'ubuntu-latest' }}
+    permissions:
+      contents: read
+      packages: read
+      security-events: write
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - language: actions
+            build-mode: none
+          - language: javascript-typescript
+            build-mode: none
+          - language: python
+            build-mode: none
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v4
+        with:
+          languages: ${{ matrix.language }}
+          build-mode: ${{ matrix.build-mode }}
+          queries: security-extended,security-and-quality
+
+      - name: Run manual build steps
+        if: matrix.build-mode == 'manual'
+        run: |
+          echo "No manual build is configured for this repository."
+          exit 1
+
+      - name: Perform CodeQL analysis
+        uses: github/codeql-action/analyze@v4
+        with:
+          category: /language:${{ matrix.language }}

.github/workflows/tests.yml

@@ -0,0 +1,194 @@
+name: Tests
+
+on:
+  workflow_call:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  test-lint:
+    name: Run lint tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+
+      - name: Run lint test suite
+        run: python -m unittest discover -s tests/lint -t .
+
+  test-integration:
+    name: Run integration tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+
+      - name: Install integration test dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --ignore-installed .
+
+      - name: Run integration test suite
+        run: python -m unittest discover -s tests/integration -t .
+
+  test-unit:
+    name: Run unit tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+
+      - name: Install unit test dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --ignore-installed .
+
+      - name: Run unit test suite
+        run: python -m unittest discover -s tests/unit -t .
+
+  security-python:
+    name: Run Python security checks
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+
+      - name: Install security dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --ignore-installed ".[dev]"
+
+      - name: Run Bandit
+        run: python -m bandit -q -ll -ii -r app main.py
+
+      - name: Export runtime requirements
+        run: python utils/export_runtime_requirements.py > runtime-requirements.txt
+
+      - name: Audit Python runtime dependencies
+        run: python -m pip_audit -r runtime-requirements.txt
+
+  test-security:
+    name: Run security guardrail tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+
+      - name: Install security test dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --ignore-installed .
+
+      - name: Run security test suite
+        run: python -m unittest discover -s tests/security -t .
+
+  e2e:
+    name: Run end-to-end tests
+    runs-on: ubuntu-latest
+    needs:
+      - test-lint
+      - test-unit
+      - test-integration
+      - security-python
+      - test-security
+    env:
+      FLASK_HOST: "127.0.0.1"
+      FLASK_PORT: "5001"
+      PORT: "5001"
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+
+      - name: Install Python dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --ignore-installed .
+
+      - name: Prepare app config for CI
+        run: cp app/config.sample.yaml app/config.yaml
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+          cache-dependency-path: app/package.json
+
+      - name: Install Node dependencies
+        working-directory: app
+        run: npm install
+
+      - name: Install Cypress system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            libasound2t64 \
+            libatk-bridge2.0-0 \
+            libatk1.0-0 \
+            libatspi2.0-0t64 \
+            libcups2t64 \
+            libdrm2 \
+            libgbm1 \
+            libglib2.0-0t64 \
+            libgtk-3-0t64 \
+            libnotify4 \
+            libnspr4 \
+            libnss3 \
+            libpango-1.0-0 \
+            libpangocairo-1.0-0 \
+            libxcomposite1 \
+            libxdamage1 \
+            libxfixes3 \
+            libxkbcommon0 \
+            libxrandr2 \
+            libxss1 \
+            libxtst6 \
+            xauth \
+            xvfb
+
+      - name: Run Cypress tests
+        uses: cypress-io/github-action@v6
+        with:
+          working-directory: app
+          install: false
+          start: python app.py
+          wait-on: http://127.0.0.1:5001
+          wait-on-timeout: 120

.gitignore

@@ -2,3 +2,11 @@ app/config.yaml
 *__pycache__*
 app/static/cache/*
 .env
+app/cypress/screenshots/*
+.ruff_cache/
+app/node_modules/
+app/static/vendor/
+hadolint-results.sarif
+build/
+*.egg-info/
+app/core.*

AGENTS.md

@@ -0,0 +1,13 @@
+# Agent Instructions
+
+## Pre-Commit Validation
+
+- You MUST run `make test` before every commit whenever the staged change includes at least one file that is not `.md` or `.rst`, unless explicitly instructed otherwise.
+- You MUST commit only after all tests pass.
+- You MUST NOT commit automatically without explicit confirmation from the user.
+
+## Vendor Assets
+
+- Browser vendor assets (Bootstrap, Font Awesome, etc.) are managed via npm.
+- Run `npm install` inside `app/` to populate `app/static/vendor/` before starting the dev server or running e2e tests.
+- Never commit `app/node_modules/` or `app/static/vendor/` — both are gitignored and generated at build time.

CHANGELOG.md

@@ -0,0 +1,23 @@
+## [1.2.0] - 2026-05-11
+
+* * Navigation behavior: Top-level dropdowns now open reliably on hover and click via Bootstrap, escape the header and navbar overflow clips, and flip between downward and upward based on whether more space is above or below the toggle
+* Compose-driven dependencies: docker-compose runs npm install inside the container on every up and persists node_modules plus static/vendor in named volumes, removing the host-side npm-install step from up, dev, prod, and test-e2e
+* Test coverage: New Cypress specs cover both header and footer dropdown directions, with a Jinja unit test guarding the data-bs-toggle attribute on top-level dropdown toggles
+* Harness configuration: Enabled the Claude Code sandbox with scoped filesystem rules, consolidated the bash allowlist behind a single wildcard, and gitignored local-only state under .claude
+
+
+## [1.1.0] - 2026-03-30
+
+* *CI stabilization and modularization*: Split into reusable workflows (lint, security, tests) with correct permissions for CodeQL and SARIF uploads
+* *Modern Python packaging*: Migration to pyproject.toml and updated Dockerfile using Python 3.12
+* *Improved test coverage*: Added unit, integration, lint, security, and E2E tests using act
+* *Local vendor assets*: Replaced external CDNs with npm-based local asset pipeline
+* *Enhanced build workflow*: Extended Makefile with targets for test, lint, security, and CI plus vendor build process
+* *Frontend fix*: Prevented navbar wrapping and improved layout behavior
+* *Developer guidelines*: Introduced AGENTS.md and CLAUDE.md with enforced pre-commit rules
+
+
+## [1.0.0] - 2026-02-19
+
+* Official Release🥳
+

CLAUDE.md

@@ -0,0 +1,5 @@
+# CLAUDE.md
+
+## Startup
+
+You MUST read `AGENTS.md` and follow all instructions in it at the start of every conversation before doing anything else.

Dockerfile

@@ -1,14 +1,20 @@
-# Base image for Python
+FROM python:3.12-slim
-FROM python:slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    FLASK_HOST=0.0.0.0
+
+# hadolint ignore=DL3008
+RUN apt-get update && apt-get install -y --no-install-recommends nodejs npm && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /tmp/build
+
+COPY pyproject.toml README.md main.py ./
+COPY app ./app
+RUN python -m pip install --no-cache-dir .
 
-# Set the working directory
 WORKDIR /app
-
-# Copy and install dependencies
-COPY app/requirements.txt requirements.txt
-RUN pip install --no-cache-dir -r requirements.txt
-
-# Copy application code
 COPY app/ .
+RUN npm install --prefix /app
 
 CMD ["python", "app.py"]

MIRRORS

@@ -0,0 +1,4 @@
+git@github.com:kevinveenbirkenbach/port-ui.git
+ssh://git@code.infinito.nexus:2201/kevinveenbirkenbach/port-ui.git
+ssh://git@git.veen.world:2201/kevinveenbirkenbach/port-ui.git
+

Makefile

@@ -0,0 +1,169 @@
+# Load environment variables from .env
+ifneq (,$(wildcard .env))
+    include .env
+    # Export variables defined in .env
+    export $(shell sed 's/=.*//' .env)
+endif
+
+# Default port (can be overridden with PORT env var)
+PORT ?= 5000
+PYTHON ?= python3
+ACT ?= act
+
+# Default port (can be overridden with PORT env var)
+.PHONY: build
+build:
+	# Build the Docker image.
+	docker build -t application-portfolio .
+
+.PHONY: build-no-cache
+build-no-cache:
+	# Build the Docker image without cache.
+	docker build --no-cache -t application-portfolio .
+
+.PHONY: up
+up:
+	# Start the application using docker-compose with build.
+	docker-compose up -d --build --force-recreate
+
+.PHONY: down
+down:
+	# Stop and remove the 'portfolio' container, ignore errors, and bring down compose.
+	- docker stop portfolio || true
+	- docker rm portfolio || true
+	- docker-compose down
+
+.PHONY: run-dev
+run-dev:
+	# Run the container in development mode (hot-reload).
+	docker run -d \
+		-p $(PORT):$(PORT) \
+		--name portfolio \
+		-v $(PWD)/app/:/app \
+		-e FLASK_APP=app.py \
+		-e FLASK_ENV=development \
+		application-portfolio
+
+.PHONY: run-prod
+run-prod:
+	# Run the container in production mode.
+	docker run -d \
+		-p $(PORT):$(PORT) \
+		--name portfolio \
+		application-portfolio
+
+.PHONY: logs
+logs:
+	# Display the logs of the 'portfolio' container.
+	docker logs -f portfolio
+
+.PHONY: dev
+dev:
+	# Start the application in development mode using docker-compose.
+	FLASK_ENV=development docker-compose up -d
+
+.PHONY: prod
+prod:
+	# Start the application in production mode using docker-compose (with build).
+	docker-compose up -d --build
+
+.PHONY: cleanup
+cleanup:
+	# Remove all stopped Docker containers to reclaim space.
+	docker container prune -f
+
+.PHONY: delete
+delete:
+	# Force remove the 'portfolio' container if it exists.
+	- docker rm -f portfolio
+
+.PHONY: browse
+browse:
+	# Open the application in the browser at http://localhost:$(PORT)
+	chromium http://localhost:$(PORT)
+
+.PHONY: install
+install:
+	# Install runtime Python dependencies from pyproject.toml.
+	$(PYTHON) -m pip install -e .
+
+.PHONY: install-dev
+install-dev:
+	# Install runtime and developer dependencies from pyproject.toml.
+	$(PYTHON) -m pip install -e ".[dev]"
+
+.PHONY: lint-actions
+lint-actions:
+	# Lint GitHub Actions workflows.
+	docker run --rm -v "$$PWD:/repo" -w /repo rhysd/actionlint:latest
+
+.PHONY: lint-python
+lint-python: install-dev
+	# Run Python lint and format checks.
+	$(PYTHON) -m ruff check .
+	$(PYTHON) -m ruff format --check .
+
+.PHONY: lint-docker
+lint-docker:
+	# Lint the Dockerfile.
+	docker run --rm -i hadolint/hadolint < Dockerfile
+
+.PHONY: test-lint
+test-lint:
+	# Run lint guardrail tests.
+	$(PYTHON) -m unittest discover -s tests/lint -t .
+
+.PHONY: test-integration
+test-integration: install
+	# Run repository integration tests.
+	$(PYTHON) -m unittest discover -s tests/integration -t .
+
+.PHONY: test-unit
+test-unit: install
+	# Run repository unit tests.
+	$(PYTHON) -m unittest discover -s tests/unit -t .
+
+.PHONY: test-security
+test-security: install
+	# Run repository security guardrail tests.
+	$(PYTHON) -m unittest discover -s tests/security -t .
+
+.PHONY: lint
+lint: lint-actions lint-python lint-docker test-lint
+	# Run the full lint suite.
+
+.PHONY: security
+security: install-dev test-security
+	# Run security checks.
+	$(PYTHON) -m bandit -q -ll -ii -r app main.py
+	$(PYTHON) utils/export_runtime_requirements.py > /tmp/portfolio-runtime-requirements.txt
+	$(PYTHON) -m pip_audit -r /tmp/portfolio-runtime-requirements.txt
+
+.PHONY: test-e2e
+test-e2e:
+	# Run Cypress end-to-end tests via act (stop portfolio container to free port first).
+	-docker stop portfolio 2>/dev/null || true
+	$(ACT) workflow_dispatch -W .github/workflows/tests.yml -j e2e
+	-docker start portfolio 2>/dev/null || true
+
+.PHONY: test-workflow
+test-workflow:
+	# Run the GitHub test workflow locally via act.
+	$(ACT) workflow_dispatch -W .github/workflows/tests.yml
+
+.PHONY: lint-workflow
+lint-workflow:
+	# Run the GitHub lint workflow locally via act.
+	$(ACT) workflow_dispatch -W .github/workflows/lint.yml
+
+.PHONY: quality
+quality: lint-workflow test-workflow
+	# Run the GitHub lint and test workflows locally via act.
+
+.PHONY: ci
+ci: lint security test-unit test-integration test-e2e
+	# Run the local CI suite.
+
+.PHONY: test
+test: ci
+	# Run the full validation suite.

README.md

@@ -1,86 +1,95 @@
-# Portfolio CMS: Flask-based Portfolio Management 🚀
+# PortUI 🖥️✨
 
 [![GitHub Sponsors](https://img.shields.io/badge/Sponsor-GitHub%20Sponsors-blue?logo=github)](https://github.com/sponsors/kevinveenbirkenbach) [![Patreon](https://img.shields.io/badge/Support-Patreon-orange?logo=patreon)](https://www.patreon.com/c/kevinveenbirkenbach) [![Buy Me a Coffee](https://img.shields.io/badge/Buy%20me%20a%20Coffee-Funding-yellow?logo=buymeacoffee)](https://buymeacoffee.com/kevinveenbirkenbach) [![PayPal](https://img.shields.io/badge/Donate-PayPal-blue?logo=paypal)](https://s.veen.world/paypaldonate)
 
-This software allows individuals and institutions to set up an easy portfolio/landingpage/homepage to showcase their projects and online presence. It is highly customizable via a YAML configuration file.
+A lightweight, Docker-powered portfolio/landing-page generator—fully customizable via YAML! Showcase your projects, skills, and online presence in minutes.  
 
-## Features ✨
+> 🚀 You can also pair PortUI with JavaScript for sleek, web-based desktop-style interfaces.  
+> 💻 Example in action: [CyMaIS.Cloud](https://cymais.cloud/) (demo)  
+> 🌐 Another live example: [veen.world](https://www.veen.world/) (Kevin’s personal site)
 
-- **Dynamic Navigation:** Easily create dropdown menus and nested links.
+---
-- **Customizable Cards:** Showcase your skills, projects, or services.
-- **Cache Management:** Optimize your assets with automatic caching.
-- **Responsive Design:** Beautiful on any device with Bootstrap.
-- **Easy Configuration:** Update content using a YAML file.
-- **Command Line Interface:** Manage Docker containers with the `portfolio` CLI.
 
-## Access 🌐
+## ✨ Key Features
 
-### Local Access
+- **Dynamic Navigation**  
-Access the application locally at [http://127.0.0.1:5000](http://127.0.0.1:5000).
+  Create dropdowns & nested menus with ease.  
+- **Customizable Cards**  
+  Highlight skills, projects, or services—with icons, titles, and links.  
+- **Smart Cache Management**  
+  Auto-cache assets for lightning-fast loading.  
+- **Responsive Design**  
+  Built on Bootstrap; looks great on desktop, tablet & mobile.  
+- **YAML-Driven**  
+  All content & structure defined in a simple `config.yaml`.  
+- **CLI Control**  
+  Manage Docker containers via the `portfolio` command.
 
-## Getting Started 🏁
+---
 
-### Prerequisites 📋
+## 🌐 Quick Access
 
-- Docker and Docker Compose installed on your system.
+- **Local Preview:**  
-- Basic knowledge of Python and YAML for configuration.
+  [http://127.0.0.1:5000](http://127.0.0.1:5000)
 
-### Installation 🛠️
+---
 
-#### Installation via git clone
+## 🏁 Getting Started
 
-1. **Clone the repository:**
+### 🔧 Prerequisites
+
+- Docker & Docker Compose  
+- Basic Python & YAML knowledge  
+
+### 🛠️ Installation via Git
+
+1. **Clone & enter repo**  
    ```bash
    git clone <repository_url>
    cd <repository_directory>
    ```
 
-2. **Update the configuration:**
+2. **Configure**
-   Create a `config.yaml` file. You can use `config.sample.yaml` as an example (see below for details on the configuration).
+   Copy `config.sample.yaml` → `config.yaml` & customize.
+3. **Build & run**
 
-3. **Build and run the Docker container:**
    ```bash
    docker-compose up --build
    ```
+4. **Browse**
+   Open [http://localhost:5000](http://localhost:5000)
 
-4. **Access your portfolio:**  
+### 📦 Installation via Kevin’s Package Manager
-   Open your browser and navigate to [http://localhost:5000](http://localhost:5000).
-
-### Installation via Kevin's Package Manager
-
-You can install the `portfolio` CLI using [Kevin's package manager](https://github.com/kevinveenbirkenbach/package-manager). Simply run:
 
 ```bash
-pkgmgr install portfolio
+pkgmgr install portui
 ```
 
-This will install the CLI tool, making it available system-wide.
+Once installed, the `portui` CLI is available system-wide.
 
-### Available Commands
+---
 
-After installation, you can access the help information for the CLI by running:
+## 🖥️ CLI Commands
 
 ```bash
-portfolio --help
+portui --help
 ```
 
-This command displays detailed instructions on how to use the following commands:
+* `build` Build the Docker image
+* `up` Start containers (with build)
+* `down` Stop & remove containers
+* `run-dev` Dev mode (hot-reload)
+* `run-prod` Production mode
+* `logs` View container logs
+* `dev` Docker-Compose dev environment
+* `prod` Docker-Compose prod environment
+* `cleanup` Prune stopped containers
 
-- **build:** Build the Docker image for the portfolio application.
+---
-- **up:** Start the application using docker-compose (with build).
-- **down:** Stop and remove the Docker container.
-- **run-dev:** Run the container in development mode with hot-reloading.
-- **run-prod:** Run the container in production mode.
-- **logs:** Display the logs of the running container.
-- **dev:** Start the application in development mode using docker-compose.
-- **prod:** Start the application in production mode using docker-compose.
-- **cleanup:** Remove all stopped Docker containers to clean up your Docker environment.
 
-## YAML Configuration Guide 🔧
+## 🔧 YAML Configuration Guide
 
-The portfolio is powered by a YAML configuration file (`config.yaml`). This file allows you to define the structure and content of your site, including cards, navigation, and company details.
+Define your site’s structure in `config.yaml`:
-
-### YAML Configuration Example 📄
 
 ```yaml
 accounts:
@@ -93,14 +102,9 @@ accounts:
       description: Platforms where I share content.
       icon:
         class: fas fa-newspaper
-      children:
-        - name: Microblogs
-          description: Stay updated with my microblog posts.
-          icon:
-            class: fa-solid fa-pen-nib
       children:
         - name: Mastodon
-              description: Follow my updates on Mastodon.
+          description: Follow me on Mastodon.
           icon:
             class: fa-brands fa-mastodon
           url: https://microblog.veen.world/@kevinveenbirkenbach
@@ -112,9 +116,10 @@ accounts:
       text: I lead agile transformations and improve team dynamics through Scrum and Agile Coaching.
       url: https://www.agile-coach.world
       link_text: www.agile-coach.world
+
 company:
-  titel: Kevin Veen-Birkenbach
+  title: Kevin Veen-Birkenbach
-  subtitel: Consulting and Coaching Solutions
+  subtitle: Consulting & Coaching Solutions
   logo:
     source: https://cloud.veen.world/s/logo_face_512x512/download
   favicon:
@@ -127,26 +132,27 @@ company:
   imprint_url: https://s.veen.world/imprint
 ```
 
-### Understanding the `children` Key 🔍
+* **`children`** enables multi-level menus.
+* **`link`** references other YAML paths to avoid duplication.
 
-The `children` key allows hierarchical nesting of elements. Each child can itself have children, enabling the creation of multi-level navigation menus or grouped content.
+---
 
-### Understanding the `link` Key 🔗
+## 🚢 Production Deployment
 
-The `link` key allows you to reference another part of the YAML configuration by its path, which helps avoid duplication and maintain consistency.
+* Use a reverse proxy (NGINX/Apache).
+* Secure with SSL/TLS.
+* Swap to a production database if needed.
 
-## Deployment 🚢
+---
 
-For production deployment, ensure to:
+## 📜 License
 
-- Use a reverse proxy like NGINX or Apache.
+Licensed under **GNU AGPLv3**. See [LICENSE](./LICENSE) for details.
-- Secure your site with SSL/TLS.
-- Use a production-ready database if required.
 
-## License 📜
+---
 
-This project is licensed under the GNU Affero General Public License Version 3. See the [LICENSE](./LICENSE) file for details.
+## ✍️ Author
 
-## Author ✍️
+Created by [Kevin Veen-Birkenbach](https://www.veen.world/)
 
-This software was created by [Kevin Veen-Birkenbach](https://www.veen.world/).
+Enjoy building your portfolio! 🌟

app/.gitignore

@@ -0,0 +1,2 @@
+node_modules/
+package-lock.json

app/__init__.py

@@ -0,0 +1 @@
+"""Portfolio UI web application package."""

app/app.py

@@ -1,16 +1,26 @@
+import logging
 import os
-from flask import Flask, render_template
+
-import yaml
 import requests
-from utils.configuration_resolver import ConfigurationResolver
+import yaml
+from flask import Flask, current_app, render_template
+from markupsafe import Markup
+
+try:
+    from app.utils.cache_manager import CacheManager
+    from app.utils.compute_card_classes import compute_card_classes
+    from app.utils.configuration_resolver import ConfigurationResolver
+except ImportError:  # pragma: no cover - supports running from the app/ directory.
     from utils.cache_manager import CacheManager
     from utils.compute_card_classes import compute_card_classes
-import logging
+    from utils.configuration_resolver import ConfigurationResolver
-logging.basicConfig(level=logging.DEBUG)
-FLASK_ENV = os.getenv("FLASK_ENV", "production")
-FLASK_PORT = int(os.getenv("PORT", 5000))
-print(f"🔧 Starting app on port {FLASK_PORT}, FLASK_ENV={FLASK_ENV}")
 
+logging.basicConfig(level=logging.DEBUG)
+
+FLASK_ENV = os.getenv("FLASK_ENV", "production")
+FLASK_HOST = os.getenv("FLASK_HOST", "127.0.0.1")
+FLASK_PORT = int(os.getenv("FLASK_PORT", os.getenv("PORT", 5000)))
+print(f"Starting app on {FLASK_HOST}:{FLASK_PORT}, FLASK_ENV={FLASK_ENV}")
 
 # Initialize the CacheManager
 cache_manager = CacheManager()
@@ -18,10 +28,11 @@ cache_manager = CacheManager()
 # Clear cache on startup
 cache_manager.clear_cache()
 
+
 def load_config(app):
     """Load and resolve the configuration from config.yaml."""
-    with open("config.yaml", "r") as f:
+    with open("config.yaml", "r", encoding="utf-8") as handle:
-        config = yaml.safe_load(f)
+        config = yaml.safe_load(handle)
 
     if config.get("nasa_api_key"):
         app.config["NASA_API_KEY"] = config["nasa_api_key"]
@@ -30,16 +41,27 @@ def load_config(app):
     resolver.resolve_links()
     app.config.update(resolver.get_config())
 
+
 def cache_icons_and_logos(app):
-    """Cache all icons and logos to local files."""
+    """Cache all icons and logos to local files, with a source fallback."""
     for card in app.config["cards"]:
         icon = card.get("icon", {})
         if icon.get("source"):
-            icon["cache"] = cache_manager.cache_file(icon["source"])
+            cached = cache_manager.cache_file(icon["source"])
+            icon["cache"] = cached or icon["source"]
+
+    company_logo = app.config["company"]["logo"]
+    cached = cache_manager.cache_file(company_logo["source"])
+    company_logo["cache"] = cached or company_logo["source"]
+
+    favicon = app.config["platform"]["favicon"]
+    cached = cache_manager.cache_file(favicon["source"])
+    favicon["cache"] = cached or favicon["source"]
+
+    platform_logo = app.config["platform"]["logo"]
+    cached = cache_manager.cache_file(platform_logo["source"])
+    platform_logo["cache"] = cached or platform_logo["source"]
 
-    app.config["company"]["logo"]["cache"] = cache_manager.cache_file(app.config["company"]["logo"]["source"])
-    app.config["platform"]["favicon"]["cache"] = cache_manager.cache_file(app.config["platform"]["favicon"]["source"])
-    app.config["platform"]["logo"]["cache"] = cache_manager.cache_file(app.config["platform"]["logo"]["source"])
 
 # Initialize Flask app
 app = Flask(__name__)
@@ -48,6 +70,22 @@ app = Flask(__name__)
 load_config(app)
 cache_icons_and_logos(app)
 
+
+@app.context_processor
+def utility_processor():
+    def include_svg(path):
+        full_path = os.path.join(current_app.root_path, "static", path)
+        try:
+            with open(full_path, "r", encoding="utf-8") as handle:
+                svg = handle.read()
+            # Trusted local SVG asset shipped with the application package.
+            return Markup(svg)  # nosec B704
+        except OSError:
+            return ""
+
+    return dict(include_svg=include_svg)
+
+
 @app.before_request
 def reload_config_in_dev():
     """Reload config and recache icons before each request in development mode."""
@@ -55,22 +93,22 @@ def reload_config_in_dev():
         load_config(app)
         cache_icons_and_logos(app)
 
-@app.route('/')
+
+@app.route("/")
 def index():
     """Render the main index page."""
     cards = app.config["cards"]
     lg_classes, md_classes = compute_card_classes(cards)
-    # fetch NASA APOD URL only if key present
     apod_bg = None
     api_key = app.config.get("NASA_API_KEY")
     if api_key:
         resp = requests.get(
             "https://api.nasa.gov/planetary/apod",
-            params={"api_key": api_key}
+            params={"api_key": api_key},
+            timeout=10,
         )
         if resp.ok:
             data = resp.json()
-            # only use if it's an image
             if data.get("media_type") == "image":
                 apod_bg = data.get("url")
 
@@ -82,8 +120,14 @@ def index():
         platform=app.config["platform"],
         lg_classes=lg_classes,
         md_classes=md_classes,
-        apod_bg=apod_bg
+        apod_bg=apod_bg,
     )
 
+
 if __name__ == "__main__":
-    app.run(debug=(FLASK_ENV == "development"), host="0.0.0.0", port=FLASK_PORT)
+    app.run(
+        debug=(FLASK_ENV == "development"),
+        host=FLASK_HOST,
+        port=FLASK_PORT,
+        use_reloader=False,
+    )

app/cypress.config.js

@@ -0,0 +1,19 @@
+// cypress.config.js
+const { defineConfig } = require('cypress');
+
+module.exports = defineConfig({
+  e2e: {
+    // your app under test must already be running on this port
+    baseUrl: `http://localhost:${process.env.PORT || 5001}`,
+    defaultCommandTimeout: 60000,
+    pageLoadTimeout: 60000,
+    requestTimeout: 1500,
+    responseTimeout: 15000,
+    specPattern: 'cypress/e2e/**/*.spec.js',
+    supportFile: false,
+    setupNodeEvents(on, config) {
+      // here you could hook into events, but we don’t need anything special
+      return config;
+    }
+  },
+});

app/cypress/e2e/container.spec.js

@@ -0,0 +1,90 @@
+// cypress/e2e/container.spec.js
+
+describe('Custom Scroll & Container Resizing', () => {
+  beforeEach(() => {
+    // Assumes your app is running at baseUrl, and container.js is loaded on “/”
+    cy.visit('/');
+  });
+
+  it('on load, the scroll-container gets a positive height and proper overflow', () => {
+    // wait for our JS to run
+    cy.window().should('have.property', 'adjustScrollContainerHeight');
+
+    // Grab the inline style of .scroll-container
+    cy.get('.scroll-container')
+      .should('have.attr', 'style')
+      .then(style => {
+        // height:<number>px must be present
+        const m = style.match(/height:\s*(\d+(?:\.\d+)?)px/);
+        expect(m, 'height set').to.not.be.null;
+        expect(parseFloat(m[1]), 'height > 0').to.be.greaterThan(0);
+
+        // overflow shorthand should include both hidden & auto (order-insensitive)
+        expect(style).to.include('overflow:');
+        expect(style).to.match(/overflow:\s*(hidden\s+auto|auto\s+hidden)/);
+      });
+  });
+
+  it('on window resize, scroll-container height updates', () => {
+    // record original height
+    cy.get('.scroll-container')
+      .invoke('css', 'height')
+      .then(orig => {
+        // resize to a smaller viewport
+        cy.viewport(320, 480);
+        cy.wait(100); // allow resize handler to fire
+
+        cy.get('.scroll-container')
+          .invoke('css', 'height')
+          .then(newH => {
+            expect(parseFloat(newH), 'height changed on resize').to.not.equal(parseFloat(orig));
+          });
+      });
+  });
+
+  context('custom scrollbar thumb', () => {
+    beforeEach(() => {
+      // inject tall content to force scrolling
+      cy.get('.scroll-container').then($sc => {
+        $sc[0].innerHTML = '<div style="height:2000px">long</div>';
+      });
+      // re-run scrollbar setup
+      cy.window().invoke('updateCustomScrollbar');
+    });
+
+    it('shows a thumb with reasonable size & position', () => {
+      cy.get('#custom-scrollbar').should('have.css', 'opacity', '1');
+
+      cy.get('#scroll-thumb')
+        .should('have.css', 'height')
+        .then(h => {
+          const hh = parseFloat(h);
+          expect(hh).to.be.at.least(20);
+          // ensure thumb is smaller than container
+          cy.get('#custom-scrollbar')
+            .invoke('css', 'height')
+            .then(ch => {
+              expect(hh).to.be.lessThan(parseFloat(ch));
+            });
+        });
+
+      // scroll a bit and verify thumb.top changes
+      cy.get('.scroll-container').scrollTo(0, 200);
+      cy.wait(50);
+      cy.get('#scroll-thumb')
+        .invoke('css', 'top')
+        .then(t => {
+          expect(parseFloat(t)).to.be.greaterThan(0);
+        });
+    });
+
+    it('hides scrollbar when content fits', () => {
+      // remove overflow
+      cy.get('.scroll-container').then($sc => {
+        $sc[0].innerHTML = '<div style="height:10px">tiny</div>';
+      });
+      cy.window().invoke('updateCustomScrollbar');
+      cy.get('#custom-scrollbar').should('have.css', 'opacity', '0');
+    });
+  });
+});

app/cypress/e2e/fullscreen.spec.js

@@ -0,0 +1,85 @@
+// cypress/e2e/fullscreen.spec.js
+
+describe('Fullscreen Toggle', () => {
+  const ROOT = '/';
+
+  beforeEach(() => {
+    cy.visit(ROOT);
+  });
+
+  it('defaults to normal mode when no fullscreen param is present', () => {
+    // Body should not have fullscreen class
+    cy.get('body').should('not.have.class', 'fullscreen');
+
+    // URL should not include `fullscreen`
+    cy.url().should('not.include', 'fullscreen=');
+
+    // Header and footer should be visible (max-height > 0)
+    cy.get('header').should('have.css', 'max-height').and(value => {
+      expect(parseFloat(value)).to.be.greaterThan(0);
+    });
+    cy.get('footer').should('have.css', 'max-height').and(value => {
+      expect(parseFloat(value)).to.be.greaterThan(0);
+    });
+  });
+
+  it('initFullscreenFromUrl() picks up ?fullscreen=1 on load', () => {
+    cy.visit(`${ROOT}?fullscreen=1`);
+
+    cy.get('body').should('have.class', 'fullscreen');
+    cy.url().should('include', 'fullscreen=1');
+
+    // Header and footer should be collapsed (max-height == 0)
+    cy.get('header').should('have.css', 'max-height', '0px');
+    cy.get('footer').should('have.css', 'max-height', '0px');
+  });
+
+  it('enterFullscreen() adds fullscreen class, sets full width, and updates URL', () => {
+    cy.window().then(win => {
+      win.exitFullscreen(); // ensure starting state
+      win.enterFullscreen();
+    });
+
+    cy.get('body').should('have.class', 'fullscreen');
+    cy.url().should('include', 'fullscreen=1');
+    cy.get('.container, .container-fluid')
+      .should('have.class', 'container-fluid');
+
+    cy.get('header').should('have.css', 'max-height', '0px');
+    cy.get('footer').should('have.css', 'max-height', '0px');
+  });
+
+  it('exitFullscreen() removes fullscreen class, resets width, and URL param', () => {
+    // start in fullscreen
+    cy.window().invoke('enterFullscreen');
+
+    // then exit
+    cy.window().invoke('exitFullscreen');
+
+    cy.get('body').should('not.have.class', 'fullscreen');
+    cy.url().should('not.include', 'fullscreen=');
+    cy.get('.container, .container-fluid')
+      .should('have.class', 'container')
+      .and('not.have.class', 'container-fluid');
+
+    // Header and footer should be expanded again
+    cy.get('header').should('have.css', 'max-height').and(value => {
+      expect(parseFloat(value)).to.be.greaterThan(0);
+    });
+    cy.get('footer').should('have.css', 'max-height').and(value => {
+      expect(parseFloat(value)).to.be.greaterThan(0);
+    });
+  });
+
+  it('toggleFullscreen() toggles into and out of fullscreen', () => {
+    // Toggle into fullscreen
+    cy.window().invoke('toggleFullscreen');
+    cy.get('body').should('have.class', 'fullscreen');
+    cy.url().should('include', 'fullscreen=1');
+
+    // Toggle back
+    cy.window().invoke('toggleFullscreen');
+    cy.get('body').should('not.have.class', 'fullscreen');
+    cy.url().should('not.include', 'fullscreen=');
+  });
+});

app/cypress/e2e/fullwidth.spec.js

@@ -0,0 +1,61 @@
+// cypress/e2e/fullwidth.spec.js
+
+describe('Full-width Toggle', () => {
+  // test page must include your <div class="container"> wrapper
+  const ROOT = '/'; 
+
+  it('defaults to .container when no param is present', () => {
+    cy.visit(ROOT);
+    cy.get('.container, .container-fluid')
+      .should('have.class', 'container')
+      .and('not.have.class', 'container-fluid');
+      
+    // URL should not include `fullwidth`
+    cy.url().should('not.include', 'fullwidth=');
+  });
+
+  it('initFullWidthFromUrl() picks up ?fullwidth=1 on load', () => {
+    cy.visit(`${ROOT}?fullwidth=1`);
+    cy.get('.container, .container-fluid')
+      .should('have.class', 'container-fluid')
+      .and('not.have.class', 'container');
+    cy.url().should('include', 'fullwidth=1');
+  });
+
+  it('setFullWidth(true) switches to container-fluid and updates URL', () => {
+    cy.visit(ROOT);
+
+    // call your global function
+    cy.window().invoke('setFullWidth', true);
+
+    cy.get('.container, .container-fluid')
+      .should('have.class', 'container-fluid')
+      .and('not.have.class', 'container');
+
+    cy.url().should('include', 'fullwidth=1');
+  });
+
+  it('setFullWidth(false) reverts to container and removes URL param', () => {
+    cy.visit(`${ROOT}?fullwidth=1`);
+
+    // now reset
+    cy.window().invoke('setFullWidth', false);
+
+    cy.get('.container, .container-fluid')
+      .should('have.class', 'container')
+      .and('not.have.class', 'container-fluid');
+
+    cy.url().should('not.include', 'fullwidth=1');
+  });
+
+  it('updateUrlFullWidth() toggles the query param without changing layout', () => {
+    cy.visit(ROOT);
+
+    // manually toggle URL only
+    cy.window().invoke('updateUrlFullWidth', true);
+    cy.url().should('include', 'fullwidth=1');
+
+    cy.window().invoke('updateUrlFullWidth', false);
+    cy.url().should('not.include', 'fullwidth=');
+  });
+});

app/cypress/e2e/iframe.spec.js

@@ -0,0 +1,46 @@
+// cypress/e2e/iframe.spec.js
+
+describe('Iframe integration', () => {
+  beforeEach(() => {
+    // Visit the app’s base URL (configured in cypress.config.js)
+    cy.visit('/');
+  });
+
+  it('opens the iframe when an .iframe-link is clicked', () => {
+    // Find the first iframe-link on the page
+    cy.get('.iframe-link').first().then($link => {
+      const href = $link.prop('href');
+
+      // Click it
+      cy.wrap($link).click();
+
+      // The URL should now include ?iframe=<encoded href>
+      cy.url().should('include', 'iframe=' + encodeURIComponent(href));
+
+      // The <body> should have the "fullscreen" class
+      cy.get('body').should('have.class', 'fullscreen');
+
+      // And the <main> should contain a visible <iframe src="<href>">
+      cy.get('main iframe')
+        .should('have.attr', 'src', href)
+        .and('be.visible');
+    });
+  });
+
+  it('restores the original content when a .js-restore element is clicked', () => {
+    // First open the iframe
+    cy.get('.iframe-link').first().click();
+
+    // Then click the first .js-restore element (e.g. header or logo)
+    cy.get('.js-restore').first().click();
+
+    // The URL must no longer include the iframe parameter
+    cy.url().should('not.include', 'iframe=');
+
+    // The <body> should no longer have the "fullscreen" class
+    cy.get('body').should('not.have.class', 'fullscreen');
+
+    // And no <iframe> should remain inside <main>
+    cy.get('main iframe').should('not.exist');
+  });
+});

app/cypress/e2e/menu.spec.js

@@ -0,0 +1,196 @@
+// cypress/e2e/menu.spec.js
+
+describe('Navigation dropdowns', () => {
+  beforeEach(() => {
+    cy.viewport(1280, 720);
+    cy.visit('/');
+  });
+
+  it('opens top-level dropdowns with explicit Bootstrap instances', () => {
+    cy.get('#navbarNavheader .nav-item.dropdown > .nav-link.dropdown-toggle')
+      .first()
+      .as('toggle')
+      .should('have.attr', 'data-bs-toggle', 'dropdown')
+      .and('have.attr', 'aria-expanded', 'false');
+
+    cy.get('@toggle').then($toggle => {
+      cy.window().then(win => {
+        expect(win.bootstrap.Dropdown.getInstance($toggle[0])).to.exist;
+      });
+    });
+
+    cy.get('@toggle')
+      .parent('.nav-item')
+      .find('> .dropdown-menu')
+      .as('menu')
+      .should('not.have.class', 'show')
+      .should('not.be.visible');
+
+    cy.get('@toggle').click();
+    cy.get('@toggle').should('have.attr', 'aria-expanded', 'true');
+    cy.get('@toggle').parent('.nav-item').should('have.class', 'dropdown');
+    cy.get('@menu')
+      .should('have.class', 'show')
+      .and('be.visible');
+  });
+
+  it('flips footer dropdowns upward where there is more space above', () => {
+    cy.get('#navbarNavfooter .nav-item .nav-link.dropdown-toggle')
+      .first()
+      .as('toggle');
+
+    cy.get('@toggle')
+      .parent('.nav-item')
+      .as('item')
+      .find('> .dropdown-menu')
+      .as('menu')
+      .should('not.have.class', 'show');
+
+    // Make sure the footer sits at the bottom of the viewport before clicking
+    // — otherwise the toggle could land near the top and chooseDirection would
+    // keep .dropdown (more space below than above).
+    // ensureScrollable:false because on short pages the body isn't scrollable
+    // and the footer is already in view (which is fine for this test).
+    cy.scrollTo('bottom', { ensureScrollable: false });
+    cy.get('@toggle').then($toggle => {
+      const rect = $toggle[0].getBoundingClientRect();
+      expect(rect.top, 'toggle is in the lower half of the viewport')
+        .to.be.greaterThan(Cypress.config('viewportHeight') / 2);
+    });
+    cy.get('@toggle').click({ scrollBehavior: false });
+    cy.get('@item').should('have.class', 'dropup');
+    cy.get('@item').should('not.have.class', 'dropdown');
+    cy.get('@menu')
+      .should('have.class', 'show')
+      .and('be.visible');
+  });
+});
+
+describe('Dynamic Popup', () => {
+  const base = {
+    name: 'Test Item',
+    identifier: 'ABC123',
+    description: 'A simple description',
+    warning: '**Be careful!**',
+    info: '_Some info_',
+    url: null,
+    iframe: false,
+    icon: { class: 'fa fa-test' },
+    alternatives: [
+      { name: 'Alt One', identifier: 'ALT1', icon: { class: 'fa fa-alt1' } }
+    ],
+    children: [
+      { name: 'Child One', identifier: 'CH1', icon: { class: 'fa fa-child1' } }
+    ]
+  };
+
+  beforeEach(() => {
+    cy.visit('/');
+    cy.window().then(win => {
+      cy.stub(win.navigator.clipboard, 'writeText').resolves();
+      cy.stub(win, 'alert');
+    });
+  });
+
+  function open(item = {}) {
+    cy.window().invoke('openDynamicPopup', { ...base, ...item });
+  }
+
+  it('renders title with icon and text', () => {
+    open();
+    cy.get('#dynamicModalLabel')
+      .find('i.fa.fa-test')
+      .should('exist');
+    cy.get('#dynamicModalLabel')
+      .should('contain.text', 'Test Item');
+  });
+
+  it('falls back to plain text when no icon', () => {
+    open({ icon: null });
+    cy.get('#dynamicModalLabel')
+      .find('i')
+      .should('not.exist');
+    cy.get('#dynamicModalLabel')
+      .should('have.text', 'Test Item');
+  });
+
+  it('shows identifier when provided and populates input', () => {
+    open();
+    cy.get('#dynamicIdentifierBox').should('not.have.class', 'd-none');
+    cy.get('#dynamicModalContent').should('have.value', 'ABC123');
+  });
+
+  it('hides identifier box when none', () => {
+    open({ identifier: null });
+    cy.get('#dynamicIdentifierBox').should('have.class', 'd-none');
+    cy.get('#dynamicModalContent').should('have.value', '');
+  });
+
+  it('renders warning and info via marked', () => {
+    open();
+    cy.get('#dynamicModalWarning')
+      .should('not.have.class', 'd-none')
+      .find('#dynamicModalWarningText')
+      .should('contain.html', '<strong>Be careful!</strong>');
+    cy.get('#dynamicModalInfo')
+      .should('not.have.class', 'd-none')
+      .find('#dynamicModalInfoText')
+      .should('contain.html', '<em>Some info</em>');
+  });
+
+  it('hides warning/info when none provided', () => {
+    open({ warning: null, info: null });
+    cy.get('#dynamicModalWarning').should('have.class', 'd-none');
+    cy.get('#dynamicModalInfo').should('have.class', 'd-none');
+  });
+
+  it('shows description when no URL', () => {
+    open({ url: null, description: 'Only desc' });
+    cy.get('#dynamicDescriptionText')
+      .should('not.have.class', 'd-none')
+      .and('have.text', 'Only desc');
+    cy.get('#dynamicModalLink').should('have.class', 'd-none');
+  });
+
+  it('shows link when URL is provided', () => {
+    open({ url: 'https://example.com', description: 'Click me' });
+    cy.get('#dynamicModalLink').should('not.have.class', 'd-none');
+    cy.get('#dynamicModalLinkHref')
+      .should('have.attr', 'href', 'https://example.com')
+      .and('have.text', 'Click me');
+  });
+
+  it('populates alternatives and children lists', () => {
+    open();
+    cy.get('#dynamicAlternativesSection').should('not.have.class', 'd-none');
+    cy.get('#dynamicAlternativesList li')
+      .should('have.length', 1)
+      .first().contains('Alt One');
+    cy.get('#dynamicChildrenSection').should('not.have.class', 'd-none');
+    cy.get('#dynamicChildrenList li')
+      .should('have.length', 1)
+      .first().contains('Child One');
+  });
+
+  it('hides sections when no items', () => {
+    open({ alternatives: [], children: [] });
+    cy.get('#dynamicAlternativesSection').should('have.class', 'd-none');
+    cy.get('#dynamicChildrenSection').should('have.class', 'd-none');
+  });
+
+  it('clicking an “Open” in list re-opens popup with that item', () => {
+    open();
+    cy.get('#dynamicAlternativesList button').click();
+    cy.get('#dynamicModalLabel')
+      .should('contain.text', 'Alt One');
+  });
+
+  it('copy button selects & copies identifier', () => {
+    open();
+    cy.get('#dynamicCopyButton').click();
+    cy.window().its('navigator.clipboard.writeText')
+      .should('have.been.calledWith', 'ABC123');
+    cy.window().its('alert')
+      .should('have.been.calledWith', 'Identifier copied to clipboard!');
+  });
+});

app/cypress/e2e/modal.spec.js

@@ -0,0 +1,130 @@
+// cypress/e2e/dynamic_popup.spec.js
+
+describe('Dynamic Popup', () => {
+  const base = {
+    name: 'Test Item',
+    identifier: 'ABC123',
+    description: 'A simple description',
+    warning: '**Be careful!**',
+    info: '_Some info_',
+    url: null,
+    iframe: false,
+    icon: { class: 'fa fa-test' },
+    alternatives: [
+      { name: 'Alt One', identifier: 'ALT1', icon: { class: 'fa fa-alt1' } }
+    ],
+    children: [
+      { name: 'Child One', identifier: 'CH1', icon: { class: 'fa fa-child1' } }
+    ]
+  };
+
+  beforeEach(() => {
+    cy.visit('/');
+    cy.window().then(win => {
+      cy.stub(win.navigator.clipboard, 'writeText').resolves();
+      cy.stub(win, 'alert');
+    });
+  });
+
+  function open(item = {}) {
+    cy.window().invoke('openDynamicPopup', { ...base, ...item });
+  }
+
+  it('renders title with icon and text', () => {
+    open();
+    cy.get('#dynamicModalLabel')
+      .find('i.fa.fa-test')
+      .should('exist');
+    cy.get('#dynamicModalLabel')
+      .should('contain.text', 'Test Item');
+  });
+
+  it('falls back to plain text when no icon', () => {
+    open({ icon: null });
+    cy.get('#dynamicModalLabel')
+      .find('i')
+      .should('not.exist');
+    cy.get('#dynamicModalLabel')
+      .should('have.text', 'Test Item');
+  });
+
+  it('shows identifier when provided and populates input', () => {
+    open();
+    cy.get('#dynamicIdentifierBox').should('not.have.class', 'd-none');
+    cy.get('#dynamicModalContent').should('have.value', 'ABC123');
+  });
+
+  it('hides identifier box when none', () => {
+    open({ identifier: null });
+    cy.get('#dynamicIdentifierBox').should('have.class', 'd-none');
+    cy.get('#dynamicModalContent').should('have.value', '');
+  });
+
+  it('renders warning and info via marked', () => {
+    open();
+    cy.get('#dynamicModalWarning')
+      .should('not.have.class', 'd-none')
+      .find('#dynamicModalWarningText')
+      .should('contain.html', '<strong>Be careful!</strong>');
+    cy.get('#dynamicModalInfo')
+      .should('not.have.class', 'd-none')
+      .find('#dynamicModalInfoText')
+      .should('contain.html', '<em>Some info</em>');
+  });
+
+  it('hides warning/info when none provided', () => {
+    open({ warning: null, info: null });
+    cy.get('#dynamicModalWarning').should('have.class', 'd-none');
+    cy.get('#dynamicModalInfo').should('have.class', 'd-none');
+  });
+
+  it('shows description when no URL', () => {
+    open({ url: null, description: 'Only desc' });
+    cy.get('#dynamicDescriptionText')
+      .should('not.have.class', 'd-none')
+      .and('have.text', 'Only desc');
+    cy.get('#dynamicModalLink').should('have.class', 'd-none');
+  });
+
+  it('shows link when URL is provided', () => {
+    open({ url: 'https://example.com', description: 'Click me' });
+    cy.get('#dynamicModalLink').should('not.have.class', 'd-none');
+    cy.get('#dynamicModalLinkHref')
+      .should('have.attr', 'href', 'https://example.com')
+      .and('have.text', 'Click me');
+  });
+
+  it('populates alternatives and children lists', () => {
+    open();
+    cy.get('#dynamicAlternativesSection').should('not.have.class', 'd-none');
+    cy.get('#dynamicAlternativesList li')
+      .should('have.length', 1)
+      .first().contains('Alt One');
+    cy.get('#dynamicChildrenSection').should('not.have.class', 'd-none');
+    cy.get('#dynamicChildrenList li')
+      .should('have.length', 1)
+      .first().contains('Child One');
+  });
+
+  it('hides sections when no items', () => {
+    open({ alternatives: [], children: [] });
+    cy.get('#dynamicAlternativesSection').should('have.class', 'd-none');
+    cy.get('#dynamicChildrenSection').should('have.class', 'd-none');
+  });
+
+  it('clicking an “Open” in list re-opens popup with that item', () => {
+    open();
+    cy.get('#dynamicAlternativesList button').click();
+    cy.get('#dynamicModalLabel')
+      .should('contain.text', 'Alt One');
+  });
+
+  it('copy button selects & copies identifier', () => {
+    open();
+    cy.get('#dynamicCopyButton').click();
+    cy.window().its('navigator.clipboard.writeText')
+      .should('have.been.calledWith', 'ABC123');
+    cy.window().its('alert')
+      .should('have.been.calledWith', 'Identifier copied to clipboard!');
+  });
+});

app/cypress/e2e/navbar_logo_visibility.spec.js

@@ -0,0 +1,32 @@
+describe('Navbar Logo Visibility', () => {
+  beforeEach(() => {
+    cy.visit('/');
+  });
+
+  it('should have #navbar_logo present in the DOM', () => {
+    cy.get('#navbar_logo').should('exist');
+  });
+
+  it('should be invisible (opacity 0) by default', () => {
+    cy.get('#navbar_logo')
+      .should('exist')
+      .and('have.css', 'opacity', '0');
+  });
+
+  it('should become visible (opacity 1) after entering fullscreen', () => {
+    cy.window().then(win => {
+      win.enterFullscreen();
+    });
+    cy.get('#navbar_logo', { timeout: 4000 })
+      .should('have.css', 'opacity', '1');
+  });
+
+  it('should become invisible again (opacity 0) after exiting fullscreen', () => {
+    cy.window().then(win => {
+      win.enterFullscreen();
+      win.exitFullscreen();
+    });
+    cy.get('#navbar_logo', { timeout: 4000 })
+      .should('have.css', 'opacity', '0');
+  });
+});

app/cypress/e2e/tooltips.spec.js

@@ -0,0 +1,130 @@
+// cypress/e2e/dynamic_popup.spec.js
+
+describe('Dynamic Popup', () => {
+  const base = {
+    name: 'Test Item',
+    identifier: 'ABC123',
+    description: 'A simple description',
+    warning: '**Be careful!**',
+    info: '_Some info_',
+    url: null,
+    iframe: false,
+    icon: { class: 'fa fa-test' },
+    alternatives: [
+      { name: 'Alt One', identifier: 'ALT1', icon: { class: 'fa fa-alt1' } }
+    ],
+    children: [
+      { name: 'Child One', identifier: 'CH1', icon: { class: 'fa fa-child1' } }
+    ]
+  };
+
+  beforeEach(() => {
+    cy.visit('/');
+    cy.window().then(win => {
+      cy.stub(win.navigator.clipboard, 'writeText').resolves();
+      cy.stub(win, 'alert');
+    });
+  });
+
+  function open(item = {}) {
+    cy.window().invoke('openDynamicPopup', { ...base, ...item });
+  }
+
+  it('renders title with icon and text', () => {
+    open();
+    cy.get('#dynamicModalLabel')
+      .find('i.fa.fa-test')
+      .should('exist');
+    cy.get('#dynamicModalLabel')
+      .should('contain.text', 'Test Item');
+  });
+
+  it('falls back to plain text when no icon', () => {
+    open({ icon: null });
+    cy.get('#dynamicModalLabel')
+      .find('i')
+      .should('not.exist');
+    cy.get('#dynamicModalLabel')
+      .should('have.text', 'Test Item');
+  });
+
+  it('shows identifier when provided and populates input', () => {
+    open();
+    cy.get('#dynamicIdentifierBox').should('not.have.class', 'd-none');
+    cy.get('#dynamicModalContent').should('have.value', 'ABC123');
+  });
+
+  it('hides identifier box when none', () => {
+    open({ identifier: null });
+    cy.get('#dynamicIdentifierBox').should('have.class', 'd-none');
+    cy.get('#dynamicModalContent').should('have.value', '');
+  });
+
+  it('renders warning and info via marked', () => {
+    open();
+    cy.get('#dynamicModalWarning')
+      .should('not.have.class', 'd-none')
+      .find('#dynamicModalWarningText')
+      .should('contain.html', '<strong>Be careful!</strong>');
+    cy.get('#dynamicModalInfo')
+      .should('not.have.class', 'd-none')
+      .find('#dynamicModalInfoText')
+      .should('contain.html', '<em>Some info</em>');
+  });
+
+  it('hides warning/info when none provided', () => {
+    open({ warning: null, info: null });
+    cy.get('#dynamicModalWarning').should('have.class', 'd-none');
+    cy.get('#dynamicModalInfo').should('have.class', 'd-none');
+  });
+
+  it('shows description when no URL', () => {
+    open({ url: null, description: 'Only desc' });
+    cy.get('#dynamicDescriptionText')
+      .should('not.have.class', 'd-none')
+      .and('have.text', 'Only desc');
+    cy.get('#dynamicModalLink').should('have.class', 'd-none');
+  });
+
+  it('shows link when URL is provided', () => {
+    open({ url: 'https://example.com', description: 'Click me' });
+    cy.get('#dynamicModalLink').should('not.have.class', 'd-none');
+    cy.get('#dynamicModalLinkHref')
+      .should('have.attr', 'href', 'https://example.com')
+      .and('have.text', 'Click me');
+  });
+
+  it('populates alternatives and children lists', () => {
+    open();
+    cy.get('#dynamicAlternativesSection').should('not.have.class', 'd-none');
+    cy.get('#dynamicAlternativesList li')
+      .should('have.length', 1)
+      .first().contains('Alt One');
+    cy.get('#dynamicChildrenSection').should('not.have.class', 'd-none');
+    cy.get('#dynamicChildrenList li')
+      .should('have.length', 1)
+      .first().contains('Child One');
+  });
+
+  it('hides sections when no items', () => {
+    open({ alternatives: [], children: [] });
+    cy.get('#dynamicAlternativesSection').should('have.class', 'd-none');
+    cy.get('#dynamicChildrenSection').should('have.class', 'd-none');
+  });
+
+  it('clicking an “Open” in list re-opens popup with that item', () => {
+    open();
+    cy.get('#dynamicAlternativesList button').click();
+    cy.get('#dynamicModalLabel')
+      .should('contain.text', 'Alt One');
+  });
+
+  it('copy button selects & copies identifier', () => {
+    open();
+    cy.get('#dynamicCopyButton').click();
+    cy.window().its('navigator.clipboard.writeText')
+      .should('have.been.calledWith', 'ABC123');
+    cy.window().its('alert')
+      .should('have.been.calledWith', 'Identifier copied to clipboard!');
+  });
+});

app/package.json

@@ -0,0 +1,16 @@
+{
+  "dependencies": {
+    "@fortawesome/fontawesome-free": "^6.7.2",
+    "bootstrap": "5.2.2",
+    "bootstrap-icons": "1.9.1",
+    "jquery": "3.6.0",
+    "marked": "^4.3.0"
+  },
+  "devDependencies": {
+    "cypress": "^14.5.1"
+  },
+  "scripts": {
+    "build": "node scripts/copy-vendor.js",
+    "postinstall": "node scripts/copy-vendor.js"
+  }
+}

app/requirements.txt

@@ -1,3 +0,0 @@
-flask
-requests
-pyyaml

app/scripts/copy-vendor.js

@@ -0,0 +1,71 @@
+'use strict';
+/**
+ * Copies third-party browser assets from node_modules into static/vendor/
+ * so Flask can serve them without any CDN dependency.
+ * Runs automatically via the "postinstall" npm hook.
+ */
+const fs   = require('fs');
+const path = require('path');
+
+const NM     = path.join(__dirname, '..', 'node_modules');
+const VENDOR = path.join(__dirname, '..', 'static', 'vendor');
+
+function copyFile(src, dest) {
+  fs.mkdirSync(path.dirname(dest), { recursive: true });
+  fs.copyFileSync(src, dest);
+}
+
+function copyDir(src, dest) {
+  fs.mkdirSync(dest, { recursive: true });
+  for (const entry of fs.readdirSync(src, { withFileTypes: true })) {
+    const s = path.join(src, entry.name);
+    const d = path.join(dest, entry.name);
+    entry.isDirectory() ? copyDir(s, d) : fs.copyFileSync(s, d);
+  }
+}
+
+// Bootstrap CSS + JS bundle
+copyFile(
+  path.join(NM, 'bootstrap', 'dist', 'css', 'bootstrap.min.css'),
+  path.join(VENDOR, 'bootstrap', 'css', 'bootstrap.min.css')
+);
+copyFile(
+  path.join(NM, 'bootstrap', 'dist', 'js', 'bootstrap.bundle.min.js'),
+  path.join(VENDOR, 'bootstrap', 'js', 'bootstrap.bundle.min.js')
+);
+
+// Bootstrap Icons CSS + embedded fonts
+copyFile(
+  path.join(NM, 'bootstrap-icons', 'font', 'bootstrap-icons.css'),
+  path.join(VENDOR, 'bootstrap-icons', 'font', 'bootstrap-icons.css')
+);
+copyDir(
+  path.join(NM, 'bootstrap-icons', 'font', 'fonts'),
+  path.join(VENDOR, 'bootstrap-icons', 'font', 'fonts')
+);
+
+// Font Awesome Free CSS + webfonts
+copyFile(
+  path.join(NM, '@fortawesome', 'fontawesome-free', 'css', 'all.min.css'),
+  path.join(VENDOR, 'fontawesome', 'css', 'all.min.css')
+);
+copyDir(
+  path.join(NM, '@fortawesome', 'fontawesome-free', 'webfonts'),
+  path.join(VENDOR, 'fontawesome', 'webfonts')
+);
+
+// marked – browser UMD build (path varies by version)
+const markedCandidates = [
+  path.join(NM, 'marked', 'marked.min.js'),              // v4.x
+  path.join(NM, 'marked', 'lib', 'marked.umd.min.js'),   // v5.x
+  path.join(NM, 'marked', 'dist', 'marked.min.js'),      // v9+
+];
+const markedSrc = markedCandidates.find(p => fs.existsSync(p));
+if (!markedSrc) throw new Error('marked: no browser UMD build found in node_modules');
+copyFile(markedSrc, path.join(VENDOR, 'marked', 'marked.min.js'));
+
+// jQuery
+copyFile(
+  path.join(NM, 'jquery', 'dist', 'jquery.min.js'),
+  path.join(VENDOR, 'jquery', 'jquery.min.js')
+);

app/static/css/default.css

@@ -38,6 +38,18 @@ a {
   background-color: #f9f9f9;
 }
 
+.card {
+  transition: background-color 1s ease, transform 1s ease;
+  transition: color 1s ease, transform 1s ease;
+}
+
+.card:hover {
+  /* invert everything inside the card */
+  filter: invert(0.8) hue-rotate(144deg);
+  transform: translateY(-4px);
+  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
+}
+
 .card-body {
   display: flex;
   flex-direction: column;
@@ -84,8 +96,11 @@ h3.footer-title {
   font-size: 1.3em;
 }
 
-.card-img-top i {
+.card-img-top i, .card-img-top svg{
   font-size: 100px;
+  fill: currentColor;
+  width: 100px;
+  height: auto;
 }
 
 div#navbarNavheader li.nav-item {
@@ -96,6 +111,15 @@ div#navbarNavfooter li.nav-item {
   margin-right: 6px;
 }
 
+/* Prevent nav items from wrapping to a second line.
+   overflow is intentionally NOT set here — overflow-x:auto would
+   implicitly clip overflow-y too and hide dropdown menus that open
+   below the navbar. */
+div#navbarNavheader .navbar-nav,
+div#navbarNavfooter .navbar-nav {
+  flex-wrap: nowrap;
+}
+
 main, footer, header, nav {
   position: relative;
   box-shadow: 
@@ -135,3 +159,54 @@ body::before {
 iframe{
   margin-bottom: -10px;
 }
+
+.container-fluid {
+  max-width: 100% !important;
+}
+
+:root {
+  --anim-duration: 3s;          /* Basis-Dauer */
+}
+
+.container,
+.container-fluid {
+  transition: 
+    max-width var(--anim-duration) ease-in-out,
+    padding-left var(--anim-duration) ease-in-out,
+    padding-right var(--anim-duration) ease-in-out;
+}
+
+#navbar_logo {
+  opacity: 0;
+  max-width: 0;
+  overflow: hidden;
+  transition: opacity var(--anim-duration) ease-in-out,
+              max-width var(--anim-duration) ease-in-out;
+}
+
+#navbar_logo.visible {
+  opacity: 1 !important;
+  max-width: 300px;
+}
+
+
+/* 1. Make sure headers and footers can collapse */
+header,
+footer {
+  /* choose a max-height that’s >= your tallest header/footer */
+  max-height: 200px;
+  padding: 1rem;
+  transition:
+    max-height var(--anim-duration) ease-in-out,
+    padding var(--anim-duration) ease-in-out;
+}
+
+/* 2. In fullscreen mode, collapse them. overflow: hidden is scoped here
+   so dropdown menus can escape the header in normal mode. */
+body.fullscreen header,
+body.fullscreen footer {
+  overflow: hidden;
+  max-height: 0;
+  padding-top: 0;
+  padding-bottom: 0;
+}

app/static/css/navigation.css

@@ -1,9 +1,19 @@
-/* Top-level dropdown menu */
+/* Top-level dropdown menu — direction toggled by JS via .dropdown / .dropup */
-.nav-item .dropdown-menu {
+.nav-item.dropdown > .dropdown-menu,
-    position: absolute; /* Important for positioning */
+.nav-item.dropup > .dropdown-menu {
-    top: 100%; /* Default opening direction: downwards */
+    position: absolute;
     left: 0;
-    z-index: 1050; /* Ensures the menu appears above other elements */
+    z-index: 1050;
+}
+
+.nav-item.dropdown > .dropdown-menu {
+    top: 100%;
+    bottom: auto;
+}
+
+.nav-item.dropup > .dropdown-menu {
+    top: auto;
+    bottom: 100%;
 }
 
 /* Submenu position */

app/static/js/container.js

@@ -17,7 +17,7 @@ function adjustScrollContainerHeight() {
   
   // Calculate the available height for the scroll area
   const availableHeight = window.innerHeight - siblingsHeight;
-  scrollContainer.style.maxHeight = availableHeight + 'px';
+  scrollContainer.style.height = availableHeight + 'px';
   scrollContainer.style.overflowY = 'auto';
   scrollContainer.style.overflowX = 'hidden';
 

app/static/js/fullscreen.js

@@ -10,38 +10,56 @@ function updateUrlFullscreen(enabled) {
 }
 
 /**
- * Enter fullscreen: hide header/footer, enable full width, recalc scroll,
+ * Starts a requestAnimationFrame loop that calls your recalc methods,
- * set both URL params, update button.
+ * and stops automatically when the header’s max-height transition ends.
  */
+function recalcWhileCollapsing() {
+  const header = document.querySelector('header');
+  if (!header) return;
+
+  // 1) Start the RAF loop
+  let rafId;
+  const step = () => {
+    adjustScrollContainerHeight();
+    updateCustomScrollbar();
+    rafId = requestAnimationFrame(step);
+  };
+  step();
+
+  // 2) Listen for the end of the max-height transition
+  function onEnd(e) {
+    if (e.propertyName === 'max-height') {
+      cancelAnimationFrame(rafId);
+      header.removeEventListener('transitionend', onEnd);
+    }
+  }
+  header.addEventListener('transitionend', onEnd);
+}
+
 function enterFullscreen() {
-  document.querySelectorAll('header, footer')
+  document.body.classList.add('fullscreen');
-          .forEach(function(el){ el.style.display = 'none'; });
   setFullWidth(true);
   updateUrlFullscreen(true);
 
+  // Nur jetzt sichtbar machen
   const logo = document.getElementById('navbar_logo');
-  if (logo) logo.classList.remove('d-none');
+  if (logo) {
-
+    logo.classList.add('visible');
-  if (typeof adjustScrollContainerHeight === 'function') adjustScrollContainerHeight();
+  }
-  if (typeof updateCustomScrollbar      === 'function') updateCustomScrollbar();
+  recalcWhileCollapsing();
 }
 
-/**
- * Exit fullscreen: show header/footer, disable full width, recalc scroll,
- * clear both URL params, update button.
- */
 function exitFullscreen() {
-  document.querySelectorAll('header, footer')
+  document.body.classList.remove('fullscreen');
-          .forEach(function(el){ el.style.display = ''; });
   setFullWidth(false);
   updateUrlFullscreen(false);
 
+  // Jetzt wieder verstecken
   const logo = document.getElementById('navbar_logo');
-  if (logo) logo.classList.add('d-none');
+  if (logo) {
-
+    logo.classList.remove('visible');
-  if (typeof adjustScrollContainerHeight === 'function') adjustScrollContainerHeight();
+  }
-  if (typeof updateCustomScrollbar      === 'function') updateCustomScrollbar();
+  recalcWhileCollapsing();
-  if (typeof syncIframeHeight           === 'function') syncIframeHeight();
 }
 
 /**

app/static/js/fullwidth.js

@@ -7,13 +7,14 @@ function setFullWidth(enabled) {
   if (!el) return;
   if (enabled) {
     el.classList.replace('container', 'container-fluid');
-    updateUrlFullWidth(true)
+    updateUrlFullWidth(true);
   } else {
     el.classList.replace('container-fluid', 'container');
-    updateUrlFullWidth(false)
+    updateUrlFullWidth(false);
   }
 }
 
+
 /**
  * Reads the URL parameter `fullwidth` and applies full width if it's set.
  * @returns {boolean} – current full‐width state

app/static/js/iframe.js

@@ -1,5 +1,16 @@
 // Global variables to store elements and original state
 let mainElement, originalContent, originalMainStyle, container, customScrollbar, scrollbarContainer;
+let currentIframeUrl = null;
+
+// === Auto-open iframe if URL parameter is present ===
+window.addEventListener('DOMContentLoaded', () => {
+  const paramUrl = new URLSearchParams(window.location.search).get('iframe');
+  if (paramUrl) {
+    currentIframeUrl = paramUrl;
+    enterFullscreen();
+    openIframe(paramUrl);
+  }
+});
 
 // Synchronize the height of the iframe to match the scroll-container or main element
 function syncIframeHeight() {
@@ -21,68 +32,71 @@ function syncIframeHeight() {
     }
 }
 
-// Function to open a URL in an iframe
+// Function to open a URL in an iframe (jQuery version mit 1500 ms Fade)
 function openIframe(url) {
-    // Hide the container (and its scroll-container) so the iframe can appear in its place
+    var $container    = scrollbarContainer    ? $(scrollbarContainer)    : null;
-    if (scrollbarContainer) {
+    var $customScroll = customScrollbar       ? $(customScrollbar)       : null;
-        scrollbarContainer.style.display = 'none';
+    var $main         = $(mainElement);
+
+    // Original-Content ausblenden mit 1500 ms
+    var promises = [];
+    if ($container)    promises.push($container.fadeOut(1500).promise());
+    if ($customScroll) promises.push($customScroll.fadeOut(1500).promise());
+
+    $.when.apply($, promises).done(function() {
+        // now that scroll areas are hidden, go fullscreen
+        enterFullscreen();
+        // create iframe if it doesn’t exist yet
+        var $iframe = $main.find('iframe');
+        if ($iframe.length === 0) {
+            originalMainStyle = $main.attr('style') || null;
+            $iframe = $('<iframe>', {
+                width: '100%',
+                frameborder: 0,
+                scrolling: 'auto'
+            }).css({ overflow: 'auto', display: 'none' });
+            $main.append($iframe);
         }
 
-    // Hide any custom scrollbar element if present
+        // Quelle setzen und mit 1500 ms einblenden
-    if (customScrollbar) {
+        $iframe
-        customScrollbar.style.display = 'none';
+            .attr('src', url)
-    }
+            .fadeIn(1500, function() {
-
-    // Create or retrieve the iframe in the main element
-    let iframe = mainElement.querySelector("iframe");
-    if (!iframe) {
-        iframe = document.createElement("iframe");
-        iframe.width = "100%";
-        iframe.style.border = "none";
-        iframe.style.overflow = "auto";  // Enable internal scrolling
-        iframe.scrolling = "auto";
-        mainElement.appendChild(iframe);
                 syncIframeHeight();
-    }
+                observeIframeNavigation();
+            });
 
-    // Set the iframe's source URL
+        // URL-State pushen
-    iframe.src = url;
+        var newUrl = new URL(window.location);
-
-    // Push the new URL state without reloading the page
-    const newUrl = new URL(window.location);
         newUrl.searchParams.set('iframe', url);
         window.history.pushState({ iframe: url }, '', newUrl);
+    });
 }
 
-// Function to restore the original content and show the container again
+/**
+ * Restore the original <main> content and exit fullscreen.
+ */
 function restoreOriginal() {
-    // Remove the iframe from the DOM
+  // Exit fullscreen (collapse header/footer and run recalcs)
-    const iframe = mainElement.querySelector("iframe");
+  exitFullscreen();
-    if (iframe) {
-        iframe.remove();
-    }
 
-    // Show the original container
+  // Replace <main> innerHTML with the snapshot we took on load
-    if (scrollbarContainer) {
+  mainElement.innerHTML = originalContent;
-        scrollbarContainer.style.display = '';
-    }
 
-    // Restore any custom scrollbar
+  // Reset any inline styles on mainElement
-    if (customScrollbar) {
-        customScrollbar.style.display = '';
-    }
-
-    // Restore the original inline style of the main element
   if (originalMainStyle !== null) {
-        mainElement.setAttribute("style", originalMainStyle);
+    mainElement.setAttribute('style', originalMainStyle);
   } else {
-        mainElement.removeAttribute("style");
+    mainElement.removeAttribute('style');
   }
 
-    // Update the URL to remove the iframe parameter
+  // Re-run height adjustments for scroll container & thumb
-    const newUrl = new URL(window.location);
+  adjustScrollContainerHeight();
-    newUrl.searchParams.delete("iframe");
+  updateCustomScrollbar();
-    window.history.pushState({}, '', newUrl);
+
+  // Clear iframe state and URL param
+  currentIframeUrl = null;
+  history.replaceState(null, '', window.location.pathname);
 }
 
 // Initialize event listeners after DOM content is loaded
@@ -95,42 +109,25 @@ document.addEventListener("DOMContentLoaded", function() {
     customScrollbar = document.getElementById("custom-scrollbar");
     scrollbarContainer = container.querySelector(".scroll-container")
 
-    // Attach click handlers to links that should open in an iframe
+    document.querySelectorAll(".js-restore").forEach(el => {
-    document.querySelectorAll(".iframe-link").forEach(link => {
+        el.style.cursor = "pointer";
-        link.addEventListener("click", function(event) {
+        el.addEventListener("click", restoreOriginal);
-            event.preventDefault();  // prevent full page navigation
-            openIframe(this.href);
-            updateUrlFullWidth(true);
-        });
     });
 
-    // Clicking the header's H1 will restore the original view
+    // === Close iframe & exit fullscreen when any .js-restore is clicked ===
-    const headerH1 = document.querySelector("header h1");
+    document.querySelectorAll('.js-restore').forEach(el => {
-    if (headerH1) {
+      el.style.cursor = 'pointer';
-        headerH1.style.cursor = "pointer";
+      el.addEventListener('click', () => {
-        headerH1.addEventListener("click", restoreOriginal);
+        // first collapse header/footer and recalc container
-    }
+        exitFullscreen();
-
+        // then fade out and remove the iframe, fade content back
-    // On full page load, check URL parameters to auto-open an iframe
-    window.addEventListener("load", function() {
-        const params = new URLSearchParams(window.location.search);
-        const iframeUrl = params.get('iframe');
-        if (iframeUrl) {
-            openIframe(iframeUrl);
-        }
-    });
-});
-
-// Handle browser back/forward navigation
-window.addEventListener('popstate', function(event) {
-    const params = new URLSearchParams(window.location.search);
-    const iframeUrl = params.get('iframe');
-
-    if (iframeUrl) {
-        openIframe(iframeUrl);
-    } else {
         restoreOriginal();
-    }
+        // clear stored URL and reset browser address
+        currentIframeUrl = null;
+        history.replaceState(null, '', window.location.pathname);
+      });
+    });
+
 });
 
 /**
@@ -150,3 +147,43 @@ window.openIframeInNewTab = openIframeInNewTab;
 
 // Adjust iframe height on window resize
 window.addEventListener('resize', syncIframeHeight);
+
+/**
+ * Observe iframe location changes (Same-Origin only).
+ */
+function observeIframeNavigation() {
+  const iframe = mainElement.querySelector("iframe");
+  if (!iframe || !iframe.contentWindow) return;
+
+  let lastUrl = iframe.contentWindow.location.href;
+
+  setInterval(() => {
+    try {
+      const currentUrl = iframe.contentWindow.location.href;
+      if (currentUrl !== lastUrl) {
+        lastUrl = currentUrl;
+        const newUrl = new URL(window.location);
+        newUrl.searchParams.set('iframe', currentUrl);
+        window.history.replaceState({}, '', newUrl);
+      }
+    } catch (e) {
+      // Cross-origin – ignore
+    }
+  }, 500);
+}
+
+// Remember, open iframe, enter fullscreen, AND set the URL param immediately
+document.querySelectorAll(".iframe-link").forEach(link => {
+  link.addEventListener("click", function(event) {
+    event.preventDefault();
+    currentIframeUrl = this.href;
+
+    enterFullscreen();
+    openIframe(currentIframeUrl);
+
+    // Update the browser URL right away
+    const newUrl = new URL(window.location);
+    newUrl.searchParams.set('iframe', currentIframeUrl);
+    window.history.replaceState({ iframe: currentIframeUrl }, '', newUrl);
+  });
+});

app/static/js/navigation.js

@@ -1,6 +1,58 @@
 document.addEventListener('DOMContentLoaded', () => {
-  const menuItems = document.querySelectorAll('.nav-item.dropdown');
+  function getDirectChildByClass(item, className) {
-  const subMenuItems = document.querySelectorAll('.dropdown-submenu');
+    return Array.from(item.children).find(child => child.classList?.contains(className));
+  }
+
+  function getMenu(item) {
+    return getDirectChildByClass(item, 'dropdown-menu');
+  }
+
+  function getToggle(item) {
+    return getDirectChildByClass(item, 'dropdown-toggle');
+  }
+
+  function isTopLevelDropdown(item) {
+    return (
+      item.classList.contains('nav-item') &&
+      (item.classList.contains('dropdown') || item.classList.contains('dropup'))
+    );
+  }
+
+  function chooseDirection(item) {
+    const rect = item.getBoundingClientRect();
+    const spaceAbove = rect.top;
+    const spaceBelow = window.innerHeight - rect.bottom;
+    if (spaceAbove > spaceBelow) {
+      item.classList.add('dropup');
+      item.classList.remove('dropdown');
+    } else {
+      item.classList.add('dropdown');
+      item.classList.remove('dropup');
+    }
+  }
+
+  function ensureDropdownInstances(root = document) {
+    const scope = root && root.querySelectorAll ? root : document;
+    scope
+      .querySelectorAll('.nav-item.dropdown > .dropdown-toggle, .nav-item.dropup > .dropdown-toggle')
+      .forEach(toggle => {
+        toggle.setAttribute('data-bs-toggle', 'dropdown');
+        if (!toggle.hasAttribute('aria-expanded')) {
+          toggle.setAttribute('aria-expanded', 'false');
+        }
+        if (window.bootstrap?.Dropdown) {
+          // Use Popper strategy: 'fixed' so the menu is positioned relative
+          // to the viewport and escapes ancestors with overflow:hidden
+          // (e.g. <header> which clips for the fullscreen-collapse animation).
+          window.bootstrap.Dropdown.getInstance(toggle)?.dispose();
+          new window.bootstrap.Dropdown(toggle, {
+            popperConfig(defaultBsPopperConfig) {
+              return { ...defaultBsPopperConfig, strategy: 'fixed' };
+            },
+          });
+        }
+      });
+  }
 
   function addMenuEventListeners(items, isTopLevel) {
     items.forEach(item => {
@@ -8,7 +60,7 @@ document.addEventListener('DOMContentLoaded', () => {
 
       function onMouseEnter() {
         clearTimeout(timeout);
-        openMenu(item, isTopLevel);
+        openMenu(item, isTopLevel, 'hover');
       }
 
       function onMouseLeave() {
@@ -25,7 +77,29 @@ document.addEventListener('DOMContentLoaded', () => {
 
       // Open and adjust position on click
       item.addEventListener('click', (e) => {
+        const toggle = getToggle(item);
+        const clickedToggle = toggle && (e.target === toggle || toggle.contains(e.target));
+
+        if (isTopLevel && !clickedToggle) {
+          e.stopPropagation();
+          return;
+        }
+
         e.stopPropagation(); // Prevents menus from closing when clicking inside
+        if (isTopLevel) {
+          e.preventDefault();
+          if (window.bootstrap?.Dropdown) {
+            if (item.dataset.openedBy === 'click') {
+              closeMenu(item);
+            } else if (getMenu(item)) {
+              item.dataset.openedBy = 'click';
+              item.classList.add('open');
+              chooseDirection(item);
+              window.bootstrap.Dropdown.getOrCreateInstance(toggle).show();
+            }
+            return;
+          }
+        }
         if (item.classList.contains('open')) {
           closeMenu(item);
         } else {
@@ -35,40 +109,60 @@ document.addEventListener('DOMContentLoaded', () => {
     });
   }
 
+  const TOP_LEVEL_SELECTOR = '.nav-item.dropdown, .nav-item.dropup';
+
   function addAllMenuEventListeners() {
-    const updatedMenuItems = document.querySelectorAll('.nav-item.dropdown');
+    const updatedMenuItems = document.querySelectorAll(TOP_LEVEL_SELECTOR);
     const updatedSubMenuItems = document.querySelectorAll('.dropdown-submenu');
     addMenuEventListeners(updatedMenuItems, true);
     addMenuEventListeners(updatedSubMenuItems, false);
   }
 
+  ensureDropdownInstances();
   addAllMenuEventListeners();
 
   // Global click listener to close menus when clicking outside
   document.addEventListener('click', () => {
+    const menuItems = document.querySelectorAll(TOP_LEVEL_SELECTOR);
+    const subMenuItems = document.querySelectorAll('.dropdown-submenu');
     [...menuItems, ...subMenuItems].forEach(item => closeMenu(item));
   });
 
-  function openMenu(item, isTopLevel) {
+  function openMenu(item, isTopLevel, openedBy = 'script') {
     item.classList.add('open');
-    const submenu = item.querySelector('.dropdown-menu');
+    const submenu = getMenu(item);
-    if (submenu) {
+    if (!submenu) return;
+    if (isTopLevel) {
+      item.dataset.openedBy = openedBy;
+      const toggle = getToggle(item);
+      if (toggle && window.bootstrap?.Dropdown) {
+        chooseDirection(item);
+        window.bootstrap.Dropdown.getOrCreateInstance(toggle).show();
+        return;
+      }
+    }
     submenu.style.display = 'block';
     submenu.style.opacity = '1';
     submenu.style.visibility = 'visible';
     adjustMenuPosition(submenu, item, isTopLevel);
   }
-  }
 
   function closeMenu(item) {
     item.classList.remove('open');
-    const submenu = item.querySelector('.dropdown-menu');
+    delete item.dataset.openedBy;
-    if (submenu) {
+    const submenu = getMenu(item);
+    if (!submenu) return;
+    if (isTopLevelDropdown(item)) {
+      const toggle = getToggle(item);
+      if (toggle && window.bootstrap?.Dropdown) {
+        window.bootstrap.Dropdown.getOrCreateInstance(toggle).hide();
+        return;
+      }
+    }
     submenu.style.display = 'none';
     submenu.style.opacity = '0';
     submenu.style.visibility = 'hidden';
   }
-  }
 
   function isSmallScreen() {
     return window.innerWidth < 992; // Bootstrap breakpoint for 'lg'

app/templates/moduls/base.html.j2

@@ -3,19 +3,25 @@
     <head>
         <title>{{platform.titel}}</title>
         <meta charset="utf-8" >
-        <link rel="icon" type="image/x-icon" href="{{platform.favicon.cache}}">
+        <link
+            rel="icon"
+            type="image/x-icon"
+            href="{% if platform.favicon.cache %}{{ url_for('static', filename=platform.favicon.cache) }}{% endif %}"
+        >
         <!-- Bootstrap CSS only -->
-        <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-Zenh87qX5JnK2Jl0vWa8Ck2rdkQ2Bzep5IDxbcnCeuOxjzrPF/et3URy9Bv1WTRi" crossorigin="anonymous">
+        <link href="{{ url_for('static', filename='vendor/bootstrap/css/bootstrap.min.css') }}" rel="stylesheet">
         <!-- Bootstrap JavaScript Bundle with Popper -->
-        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-OERcA2EqjJCMA+/3y+gxIOqMEjwtxJY7qPCqsdltbNJuaOe923+mo//f6V8Qbsw3" crossorigin="anonymous"></script>
+        <script src="{{ url_for('static', filename='vendor/bootstrap/js/bootstrap.bundle.min.js') }}"></script>
         <!-- Bootstrap Icons -->
-        <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.9.1/font/bootstrap-icons.css">
+        <link rel="stylesheet" href="{{ url_for('static', filename='vendor/bootstrap-icons/font/bootstrap-icons.css') }}">
         <!-- Fontawesome -->
-        <script src="https://kit.fontawesome.com/56f96da298.js" crossorigin="anonymous"></script>
+        <link rel="stylesheet" href="{{ url_for('static', filename='vendor/fontawesome/css/all.min.css') }}">
         <!-- Markdown -->
-        <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
+        <script src="{{ url_for('static', filename='vendor/marked/marked.min.js') }}"></script>
         <link rel="stylesheet" href="{{ url_for('static', filename='css/default.css') }}">
         <link rel="stylesheet" href="{{ url_for('static', filename='css/custom_scrollbar.css') }}">
+        <!-- JQuery -->
+        <script src="{{ url_for('static', filename='vendor/jquery/jquery.min.js') }}"></script>
     </head>
     <body
       {% if apod_bg %}
@@ -28,8 +34,11 @@
       {% endif %}
     >
         <div class="container">
-            <header class="header">
+            <header class="header js-restore">
-              <img src="{{platform.logo.cache}}" alt="logo"/>
+              <img
+                src="{{ url_for('static', filename=platform.logo.cache) }}"
+                alt="logo"
+              />
               <h1>{{platform.titel}}</h1>
               <h2>{{platform.subtitel}}</h2>
             </header>

app/templates/moduls/card.html.j2

@@ -2,17 +2,28 @@
   <div class="card h-100 d-flex flex-column">
     <div class="card-body d-flex flex-column">
       <div class="card-img-top">
+        {% if card.icon.cache and card.icon.cache.endswith('.svg') %}
+          {{ include_svg(card.icon.cache) }}
+        {% elif card.icon.cache %}
+          <img
+            src="{{ url_for('static', filename=card.icon.cache) }}"
+            alt="{{ card.title }}"
+            style="width:100px; height:auto;"
+            onerror="this.style.display='none'; this.nextElementSibling?.style.display='inline-block';">
           {% if card.icon.class %}
+            <i class="{{ card.icon.class }}" style="display:none;"></i>
+          {% endif %}
+        {% elif card.icon.class %}
           <i class="{{ card.icon.class }}"></i>
-                {% else %}
-                    <img src="{{ card.icon.cache }}" alt="{{ card.title }}" style="width: 100px; height: auto;">
         {% endif %}
       </div>
       <hr />
       <h3 class="card-title">{{ card.title }}</h3>
       <p class="card-text">{{ card.text }}</p>
       {% if card.url %}
-                <a href="{{ card.url }}" class="mt-auto btn btn-light stretched-link {% if card.iframe %}iframe-link{% endif %}">
+        <a
+          href="{{ card.url }}"
+          class="mt-auto btn btn-light stretched-link {% if card.iframe %}iframe-link{% endif %}">
           <i class="fa-solid fa-globe"></i> {{ card.link_text }}
         </a>
       {% else %}

app/templates/moduls/navigation.html.j2

@@ -54,9 +54,9 @@
     </button>
     <div class="collapse navbar-collapse" id="navbarNav{{menu_type}}">
         {% if menu_type == "header" %}
-        <a class="navbar-brand d-flex align-items-center d-none" id="navbar_logo" href="/">
+        <a class="navbar-brand align-items-center d-flex js-restore" id="navbar_logo" href="#">
             <img 
-                src="{{ platform.logo.cache }}" 
+                src="{{ url_for('static', filename=platform.logo.cache) }}" 
                 alt="{{ platform.titel }}" 
                 class="d-inline-block align-text-top"
                 style="height:2rem">
@@ -85,7 +85,7 @@
                 {% else %}        
                 <!-- Dropdown Menu -->
                     <li class="nav-item dropdown">
-                        <a class="nav-link dropdown-toggle btn btn-light" id="navbarDropdown{{ loop.index }}" role="button" data-bs-display="dynamic" aria-expanded="false">
+                        <a class="nav-link dropdown-toggle btn btn-light" id="navbarDropdown{{ loop.index }}" role="button" data-bs-toggle="dropdown" data-bs-display="dynamic" aria-expanded="false">
                             {% if item.icon is defined and item.icon.class is defined %}
                                 {{ render_icon_and_name(item) }}
                             {% else %}

app/utils/__init__.py

@@ -0,0 +1 @@
+"""Utilities used by the Portfolio UI web application."""

app/utils/cache_manager.py

@@ -1,66 +1,47 @@
-import os
 import hashlib
+import mimetypes
+import os
+
 import requests
 
+
 class CacheManager:
-    """
-    A class to manage caching of files, including creating temporary directories
-    and caching files locally with hashed filenames.
-    """
-
     def __init__(self, cache_dir="static/cache"):
-        """
-        Initialize the CacheManager with a cache directory.
-
-        :param cache_dir: The directory where cached files will be stored.
-        """
         self.cache_dir = cache_dir
         self._ensure_cache_dir_exists()
 
     def _ensure_cache_dir_exists(self):
-        """
+        os.makedirs(self.cache_dir, exist_ok=True)
-        Ensure the cache directory exists. If it doesn't, create it.
-        """
-        if not os.path.exists(self.cache_dir):
-            os.makedirs(self.cache_dir)
 
     def clear_cache(self):
-        """
-        Clear all files in the cache directory.
-        """
         if os.path.exists(self.cache_dir):
             for filename in os.listdir(self.cache_dir):
-                file_path = os.path.join(self.cache_dir, filename)
+                path = os.path.join(self.cache_dir, filename)
-                if os.path.isfile(file_path):
+                if os.path.isfile(path):
-                    os.remove(file_path)
+                    os.remove(path)
 
     def cache_file(self, file_url):
-        """
+        hash_suffix = hashlib.blake2s(
-        Download a file and store it locally in the cache directory with a hashed filename.
+            file_url.encode("utf-8"),
+            digest_size=8,
+        ).hexdigest()
+        parts = file_url.rstrip("/").split("/")
+        base = parts[-2] if parts[-1] == "download" else parts[-1]
 
-        :param file_url: The URL of the file to cache.
+        try:
-        :return: The local path of the cached file.
+            resp = requests.get(file_url, stream=True, timeout=5)
-        """
+            resp.raise_for_status()
-        # Generate a hashed filename based on the URL
+        except requests.RequestException:
-        hash_object = hashlib.blake2s(file_url.encode('utf-8'), digest_size=8)
+            return None
-        hash_suffix = hash_object.hexdigest()
 
-        # Determine the base name for the file
+        content_type = resp.headers.get("Content-Type", "")
-        splitted_file_url = file_url.split("/")
+        ext = mimetypes.guess_extension(content_type.split(";")[0].strip()) or ".png"
-        base_name = splitted_file_url[-2] if splitted_file_url[-1] == "download" else splitted_file_url[-1]
+        filename = f"{base}_{hash_suffix}{ext}"
-
-        # Construct the full path for the cached file
-        filename = f"{base_name}_{hash_suffix}.png"
         full_path = os.path.join(self.cache_dir, filename)
 
-        # If the file already exists, return the cached path
+        if not os.path.exists(full_path):
-        if os.path.exists(full_path):
+            with open(full_path, "wb") as f:
-            return full_path
+                for chunk in resp.iter_content(1024):
+                    f.write(chunk)
 
-        # Download the file and save it locally
+        return f"cache/{filename}"
-        response = requests.get(file_url, stream=True)
-        if response.status_code == 200:
-            with open(full_path, "wb") as file:
-                for chunk in response.iter_content(1024):
-                    file.write(chunk)
-        return full_path

app/utils/compute_card_classes.py

@@ -32,7 +32,7 @@ def compute_card_classes(cards):
                     lg_classes.append("col-lg-6")
                 else:
                     lg_classes.append("col-lg-4")
-    # md classes: If the number of cards is even or if not the last card, otherwise "col-md-12"
+    # Use a full-width last card on medium screens only when the total count is odd.
     md_classes = []
     for i in range(num_cards):
         if num_cards % 2 == 0 or i < num_cards - 1:

app/utils/configuration_resolver.py

@@ -1,4 +1,3 @@
-from pprint import pprint
 class ConfigurationResolver:
     """
     A class to resolve `link` entries in a nested configuration structure.
@@ -14,19 +13,6 @@ class ConfigurationResolver:
         """
         self._recursive_resolve(self.config, self.config)
 
-    def __load_children(self,path):
-        """
-        Check if explicitly children should be loaded and not parent
-        """
-        return path.split('.').pop() == "children"
-        
-    def _replace_in_dict_by_dict(self, dict_origine, old_key, new_dict):
-        if old_key in dict_origine:
-            # Entferne den alten Key
-            old_value = dict_origine.pop(old_key)
-            # Füge die neuen Key-Value-Paare hinzu
-            dict_origine.update(new_dict)
-
     def _replace_in_list_by_list(self, list_origine, old_element, new_elements):
         index = list_origine.index(old_element)
         list_origine[index : index + 1] = new_elements
@@ -43,10 +29,17 @@ class ConfigurationResolver:
             for key, value in list(current_config.items()):
                 if key == "children":
                     if value is None or not isinstance(value, list):
-                        raise ValueError(f"Expected 'children' to be a list, but got {type(value).__name__} instead.")
+                        raise ValueError(
+                            "Expected 'children' to be a list, but got "
+                            f"{type(value).__name__} instead."
+                        )
                     for item in value:
                         if "link" in item:
-                            loaded_link = self._find_entry(root_config, self._mapped_key(item['link']), False)
+                            loaded_link = self._find_entry(
+                                root_config,
+                                self._mapped_key(item["link"]),
+                                False,
+                            )
                             if isinstance(loaded_link, list):
                                 self._replace_in_list_by_list(value, item, loaded_link)
                             else:
@@ -55,15 +48,24 @@ class ConfigurationResolver:
                             self._recursive_resolve(value, root_config)
                 elif key == "link":
                     try:
-                        loaded = self._find_entry(root_config, self._mapped_key(value), False)
+                        loaded = self._find_entry(
+                            root_config, self._mapped_key(value), False
+                        )
                         if isinstance(loaded, list) and len(loaded) > 2:
-                            loaded = self._find_entry(root_config, self._mapped_key(value), False)  
+                            loaded = self._find_entry(
+                                root_config, self._mapped_key(value), False
+                            )
                         current_config.clear()
                         current_config.update(loaded)
                     except Exception as e:
                         raise ValueError(
                             f"Error resolving link '{value}': {str(e)}. "
-                            f"Current part: {key}, Current config: {current_config}" + (f", Loaded: {loaded}" if 'loaded' in locals() or 'loaded' in globals() else "")
+                            f"Current part: {key}, Current config: {current_config}"
+                            + (
+                                f", Loaded: {loaded}"
+                                if "loaded" in locals() or "loaded" in globals()
+                                else ""
+                            )
                         )
                 else:
                     self._recursive_resolve(value, root_config)
@@ -72,7 +74,9 @@ class ConfigurationResolver:
                 self._recursive_resolve(item, root_config)
 
     def _get_children(self, current):
-        if isinstance(current, dict) and ("children" in current and current["children"]):
+        if isinstance(current, dict) and (
+            "children" in current and current["children"]
+        ):
             current = current["children"]
         return current
 
@@ -81,8 +85,13 @@ class ConfigurationResolver:
 
     def _find_by_name(self, current, part):
         return next(
-                    (item for item in current if isinstance(item, dict) and self._mapped_key(item.get("name", "")) == part),
+            (
-                    None
+                item
+                for item in current
+                if isinstance(item, dict)
+                and self._mapped_key(item.get("name", "")) == part
+            ),
+            None,
         )
 
     def _find_entry(self, config, path, children):
@@ -90,46 +99,44 @@ class ConfigurationResolver:
         Finds an entry in the configuration by a dot-separated path.
         Supports both dictionaries and lists with `children` navigation.
         """
-        parts = path.split('.')
+        parts = path.split(".")
         current = config
         for part in parts:
             if isinstance(current, list):
-                # If children explicit declared just load children
                 if part != "children":
-                    # Look for a matching name in the list
                     found = self._find_by_name(current, part)
                     if found:
                         current = found
                         print(
-                            f"Matching entry for '{part}' in list. Path so far: {' > '.join(parts[:parts.index(part)+1])}. "
+                            f"Matching entry for '{part}' in list. Path so far: "
+                            f"{' > '.join(parts[: parts.index(part) + 1])}. "
                             f"Current list: {current}"
                         )
                     else:
                         raise ValueError(
-                            f"No matching entry for '{part}' in list. Path so far: {' > '.join(parts[:parts.index(part)+1])}. "
+                            f"No matching entry for '{part}' in list. Path so far: "
+                            f"{' > '.join(parts[: parts.index(part) + 1])}. "
                             f"Current list: {current}"
                         )
             elif isinstance(current, dict):
-                # Case-insensitive dictionary lookup
                 key = next((k for k in current if self._mapped_key(k) == part), None)
-                # If no fitting key was found search in the children
                 if key is None:
                     if "children" not in current:
                         raise KeyError(
-                        f"No 'children' found in current dictionary. Path so far: {' > '.join(parts[:parts.index(part)+1])}. "
+                            "No 'children' found in current dictionary. Path so far: "
+                            f"{' > '.join(parts[: parts.index(part) + 1])}. "
                             f"Current dictionary: {current}"
                         )
-                    # The following line seems buggy; Why is children loaded allways and not just when children is set?
                     current = self._find_by_name(current["children"], part)
 
                     if not current:
                         raise KeyError(
-                            f"Key '{part}' not found in dictionary. Path so far: {' > '.join(parts[:parts.index(part)+1])}. "
+                            f"Key '{part}' not found in dictionary. Path so far: "
+                            f"{' > '.join(parts[: parts.index(part) + 1])}. "
                             f"Current dictionary: {current}"
                         )
                 else:
                     current = current[key]
-                
             else:
                 raise ValueError(
                     f"Invalid path segment '{part}'. Current type: {type(current)}. "

docker-compose.yml

@@ -5,14 +5,20 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
-    image: application-portfolio
     container_name: portfolio
     ports:
       - "${PORT:-5000}:${PORT:-5000}"
+    env_file:
+      - .env
     volumes:
       - ./app:/app
-      - ./.env:/app./.env
+      - node_modules:/app/node_modules
-    environment:
+      - vendor:/app/static/vendor
-      - PORT=${PORT:-5000}
+    # Run `npm install` on every container start so the named volumes
-      - FLASK_ENV=${FLASK_ENV:-production}
+    # reflect the current package.json (postinstall regenerates vendor/).
+    command: sh -c "npm install --prefix /app --no-audit --no-fund && python app.py"
     restart: unless-stopped
+
+volumes:
+  node_modules:
+  vendor:

env.example

@@ -1,2 +1,2 @@
-PORT=5000
+PORT=5001
 FLASK_ENV=production

main.py

@@ -1,300 +1,79 @@
 #!/usr/bin/env python3
 """
-main.py - A CLI tool for managing the Portfolio CMS Docker application.
+main.py - Proxy to Makefile targets for managing the Portfolio CMS Docker application.
-
+Automatically generates CLI commands based on the Makefile definitions.
-This script provides commands to build and run the Docker container for the
-portfolio application. It mimics the functionality of a Makefile with additional
-explanatory text using argparse.
-
-Commands:
-    build     - Build the Docker image.
-    up        - Start the application using docker-compose (with build).
-    down      - Stop and remove the running container.
-    run-dev   - Run the container in development mode (with hot-reloading).
-    run-prod  - Run the container in production mode.
-    logs      - Display the logs of the running container.
-    dev       - Start the application in development mode using docker-compose.
-    prod      - Start the application in production mode using docker-compose.
-    cleanup   - Remove all stopped containers.
 """
 
 import argparse
+import re
 import subprocess
 import sys
-import os
-from dotenv import load_dotenv
 from pathlib import Path
 
-dotenv_path = Path(__file__).resolve().parent / ".env"
+MAKEFILE_PATH = Path(__file__).resolve().parent / "Makefile"
 
-if dotenv_path.exists():
-    load_dotenv(dotenv_path)
-else:
-    print(f"⚠️  Warning: No .env file found at {dotenv_path}")
-PORT = int(os.getenv("PORT", 5000))
 
-def run_command(command, dry_run=False, env=None):
+def load_targets(makefile_path):
-    """Utility function to run a shell command."""
+    """
+    Parse the Makefile to extract targets and their help comments.
+    Assumes each target is defined as 'name:' and the following line that starts
+    with '\t#' provides its help text.
+    """
+    targets = []
+    pattern = re.compile(r"^([A-Za-z0-9_\-]+):")
+    with open(makefile_path, "r", encoding="utf-8") as handle:
+        lines = handle.readlines()
+    for idx, line in enumerate(lines):
+        m = pattern.match(line)
+        if m:
+            name = m.group(1)
+            help_text = ""
+            if idx + 1 < len(lines):
+                next_line = lines[idx + 1].lstrip()
+                if next_line.startswith("#"):
+                    help_text = next_line.lstrip("# ").strip()
+            targets.append((name, help_text))
+    return targets
+
+
+def run_command(command, dry_run=False):
+    """Utility to run shell commands."""
     print(f"Executing: {' '.join(command)}")
     if dry_run:
         print("Dry run enabled: command not executed.")
         return
     try:
-        subprocess.check_call(command, env=env)
+        subprocess.check_call(command)
     except subprocess.CalledProcessError as e:
         print(f"Error: Command failed with exit code {e.returncode}")
         sys.exit(e.returncode)
 
-def build(args):
-    """
-    Build the Docker image for the portfolio application.
-    
-    Command:
-      docker build -t application-portfolio .
-      
-    This command creates a Docker image named 'application-portfolio'
-    from the Dockerfile in the current directory.
-    """
-    command = ["docker", "build", "-t", "application-portfolio", "."]
-    run_command(command, args.dry_run)
-
-def up(args):
-    """
-    Start the application using docker-compose with build.
-    
-    Command:
-      docker-compose up --build
-      
-    This command uses docker-compose to build (if necessary) and start
-    all defined services. It is useful for quickly starting your
-    development or production environment.
-    """
-    command = ["docker-compose", "up", "--build"]
-    run_command(command, args.dry_run)
-
-def down(args):
-    """
-    Stop and remove the Docker container named 'portfolio'.
-    
-    Commands:
-      docker stop portfolio
-      docker rm portfolio
-      
-    These commands stop the running container and remove it from your Docker host.
-    The '-' prefix is used to ignore errors if the container is not running.
-    """
-    command_stop = ["docker", "stop", "portfolio"]
-    command_rm = ["docker", "rm", "portfolio"]
-    run_command(command_stop, args.dry_run)
-    run_command(command_rm, args.dry_run)
-
-def run_dev(args):
-    """
-    Run the container in development mode with hot-reloading.
-    
-    Command:
-      docker run -d -p 5000:5000 --name portfolio -v $(pwd)/app/:/app \
-      -e FLASK_APP=app.py -e FLASK_ENV=development application-portfolio
-      
-    This command starts the container in detached mode (-d), maps port 5000,
-    mounts the local 'app/' directory into the container, and sets environment
-    variables to enable Flask's development mode.
-    """
-    current_dir = os.getcwd()
-    volume_mapping = f"{current_dir}/app/:/app"
-    command = [
-        "docker", "run", "-d",
-        "-p", f"{PORT}:{PORT}",
-        "--name", "portfolio",
-        "-v", volume_mapping,
-        "-e", "FLASK_APP=app.py",
-        "-e", "FLASK_ENV=development",
-        "application-portfolio"
-    ]
-    run_command(command, args.dry_run)
-
-def run_prod(args):
-    """
-    Run the container in production mode.
-    
-    Command:
-      docker run -d -p 5000:5000 --name portfolio application-portfolio
-      
-    This command starts the container in detached mode, mapping port 5000,
-    and runs the production version of the portfolio application.
-    """
-    command = [
-        "docker", "run", "-d",
-        "-p", "{PORT}:5000",
-        "--name", "portfolio",
-        "application-portfolio"
-    ]
-    run_command(command, args.dry_run)
-
-def logs(args):
-    """
-    Display the logs of the 'portfolio' container.
-    
-    Command:
-      docker logs -f portfolio
-      
-    This command follows the logs (using -f) of the running container,
-    which is helpful for debugging and monitoring.
-    """
-    command = ["docker", "logs", "-f", "portfolio"]
-    run_command(command, args.dry_run)
-
-def dev(args):
-    """
-    Run the application in development mode using docker-compose.
-    """
-    env = os.environ.copy()
-    env["FLASK_ENV"] = "development"
-    command = ["docker-compose", "up", "-d"]
-    print("▶️ Starting in development mode (FLASK_ENV=development)")
-    run_command(command, args.dry_run, env=env)
-
-def prod(args):
-    """
-    Run the application in production mode using docker-compose.
-    
-    Command:
-      docker-compose up --build
-      
-    This command builds the Docker image if needed and starts the application
-    using docker-compose for a production environment.
-    """
-    command = ["docker-compose", "up", "--build"]
-    run_command(command, args.dry_run)
-
-def cleanup(args):
-    """
-    Remove all stopped Docker containers.
-    
-    Command:
-      docker container prune -f
-      
-    This command cleans up your Docker environment by forcefully removing
-    all stopped containers. It is useful to reclaim disk space and remove
-    unused containers.
-    """
-    command = ["docker", "container", "prune", "-f"]
-    run_command(command, args.dry_run)
-    
-def delete_portfolio_container(dry_run=False):
-    """
-    Force remove the portfolio container if it exists.
-    """
-    print("Checking if 'portfolio' container exists to delete...")
-    command = ["docker", "rm", "-f", "portfolio"]
-    run_command(command, dry_run)
-
-def browse(args):
-    """
-    Open http://localhost:5000 in Chromium browser.
-
-    Command:
-      chromium http://localhost:5000
-
-    This command launches the Chromium browser to view the running application.
-    """
-    command = ["chromium", f"http://localhost:{PORT}"]
-    run_command(command, args.dry_run)
-
 
 def main():
     parser = argparse.ArgumentParser(
-        description="CLI tool to manage the Portfolio CMS Docker application."
+        description="CLI proxy to Makefile targets for Portfolio CMS Docker app"
     )
     parser.add_argument(
         "--dry-run",
         action="store_true",
-        help="Print the commands without executing them."
+        help="Print the generated Make command without executing it.",
-    )
-    
-    parser.add_argument(
-        "--delete",
-        action="store_true",
-        help="Delete the existing 'portfolio' container before running the command."
     )
 
     subparsers = parser.add_subparsers(
-        title="Commands",
+        title="Available commands",
-        description="Available commands to manage the application",
+        dest="command",
-        dest="command"
+        required=True,
     )
 
-    # Browse command
+    targets = load_targets(MAKEFILE_PATH)
-    parser_browse = subparsers.add_parser(
+    for name, help_text in targets:
-        "browse", help="Open application in Chromium browser."
+        sp = subparsers.add_parser(name, help=help_text)
-    )
+        sp.set_defaults(target=name)
-    parser_browse.set_defaults(func=browse)
-
-    # Build command
-    parser_build = subparsers.add_parser(
-        "build", help="Build the Docker image."
-    )
-    parser_build.set_defaults(func=build)
-    
-    # Up command (docker-compose up)
-    parser_up = subparsers.add_parser(
-        "up", help="Start the application using docker-compose (with build)."
-    )
-    parser_up.set_defaults(func=up)
-    
-    # Down command
-    parser_down = subparsers.add_parser(
-        "down", help="Stop and remove the Docker container."
-    )
-    parser_down.set_defaults(func=down)
-    
-    # Run-dev command
-    parser_run_dev = subparsers.add_parser(
-        "run-dev", help="Run the container in development mode (with hot-reloading)."
-    )
-    parser_run_dev.set_defaults(func=run_dev)
-    
-    # Run-prod command
-    parser_run_prod = subparsers.add_parser(
-        "run-prod", help="Run the container in production mode."
-    )
-    parser_run_prod.set_defaults(func=run_prod)
-    
-    # Logs command
-    parser_logs = subparsers.add_parser(
-        "logs", help="Display the logs of the running container."
-    )
-    parser_logs.set_defaults(func=logs)
-    
-    # Dev command (docker-compose with FLASK_ENV)
-    parser_dev = subparsers.add_parser(
-        "dev", help="Start the application in development mode using docker-compose."
-    )
-    parser_dev.set_defaults(func=dev)
-    
-    # Prod command (docker-compose production)
-    parser_prod = subparsers.add_parser(
-        "prod", help="Start the application in production mode using docker-compose."
-    )
-    parser_prod.set_defaults(func=prod)
-    
-    # Cleanup command
-    parser_cleanup = subparsers.add_parser(
-        "cleanup", help="Remove all stopped Docker containers."
-    )
-    parser_cleanup.set_defaults(func=cleanup)
 
     args = parser.parse_args()
+    cmd = ["make", args.target]
+    run_command(cmd, dry_run=args.dry_run)
 
-    if args.command is None:
-        parser.print_help()
-        sys.exit(1)
-
-    if args.delete:
-        delete_portfolio_container(args.dry_run)
-    
-    # Execute the chosen subcommand function
-    args.func(args)
 
 if __name__ == "__main__":
     main()

pyproject.toml

@@ -0,0 +1,44 @@
+[build-system]
+requires = ["setuptools>=69"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "portfolio-ui"
+version = "1.2.0"
+description = "A lightweight YAML-driven portfolio and landing-page generator."
+readme = "README.md"
+requires-python = ">=3.12"
+dependencies = [
+    "flask",
+    "pyyaml",
+    "requests",
+]
+
+[project.optional-dependencies]
+dev = [
+    "bandit",
+    "pip-audit",
+    "ruff",
+]
+
+[tool.setuptools]
+py-modules = ["main"]
+
+[tool.setuptools.packages.find]
+include = ["app", "app.*"]
+
+[tool.setuptools.package-data]
+app = [
+    "config.sample.yaml",
+    "templates/**/*.j2",
+    "static/css/*.css",
+    "static/js/*.js",
+]
+
+[tool.ruff]
+target-version = "py312"
+line-length = 88
+extend-exclude = ["app/static/cache", "build"]
+
+[tool.ruff.lint]
+select = ["E", "F", "I"]

requirements.txt

@@ -1 +0,0 @@
-python-dotenv

tests/__init__.py

@@ -0,0 +1 @@
+

tests/integration/__init__.py

@@ -0,0 +1 @@
+

tests/integration/test_python_packaging.py

@@ -0,0 +1,54 @@
+import tomllib
+import unittest
+from pathlib import Path
+
+
+class TestPythonPackaging(unittest.TestCase):
+    def setUp(self) -> None:
+        self.repo_root = Path(__file__).resolve().parents[2]
+        self.pyproject_path = self.repo_root / "pyproject.toml"
+
+        with self.pyproject_path.open("rb") as handle:
+            self.pyproject = tomllib.load(handle)
+
+    def test_pyproject_defines_build_system_and_runtime_dependencies(self):
+        build_system = self.pyproject["build-system"]
+        project = self.pyproject["project"]
+
+        self.assertEqual(build_system["build-backend"], "setuptools.build_meta")
+        self.assertIn("setuptools>=69", build_system["requires"])
+        self.assertGreaterEqual(
+            set(project["dependencies"]),
+            {"flask", "pyyaml", "requests"},
+        )
+        self.assertEqual(project["requires-python"], ">=3.12")
+
+    def test_pyproject_defines_dev_dependencies_and_package_contents(self):
+        project = self.pyproject["project"]
+        setuptools_config = self.pyproject["tool"]["setuptools"]
+        package_find = setuptools_config["packages"]["find"]
+        package_data = setuptools_config["package-data"]["app"]
+
+        self.assertGreaterEqual(
+            set(project["optional-dependencies"]["dev"]),
+            {"bandit", "pip-audit", "ruff"},
+        )
+        self.assertEqual(setuptools_config["py-modules"], ["main"])
+        self.assertEqual(package_find["include"], ["app", "app.*"])
+        self.assertIn("config.sample.yaml", package_data)
+        self.assertIn("templates/**/*.j2", package_data)
+        self.assertIn("static/css/*.css", package_data)
+        self.assertIn("static/js/*.js", package_data)
+
+    def test_legacy_requirements_files_are_removed(self):
+        self.assertFalse((self.repo_root / "requirements.txt").exists())
+        self.assertFalse((self.repo_root / "requirements-dev.txt").exists())
+        self.assertFalse((self.repo_root / "app" / "requirements.txt").exists())
+
+    def test_package_init_files_exist(self):
+        self.assertTrue((self.repo_root / "app" / "__init__.py").is_file())
+        self.assertTrue((self.repo_root / "app" / "utils" / "__init__.py").is_file())
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/integration/test_yaml_syntax.py

@@ -0,0 +1,43 @@
+import unittest
+from pathlib import Path
+
+import yaml
+
+SKIP_DIR_NAMES = {".git", ".ruff_cache", "__pycache__", "node_modules"}
+SKIP_FILES = {"app/config.yaml"}
+YAML_SUFFIXES = {".yml", ".yaml"}
+
+
+class TestYamlSyntax(unittest.TestCase):
+    def test_all_repository_yaml_files_are_valid(self):
+        repo_root = Path(__file__).resolve().parents[2]
+        invalid_files = []
+
+        for path in repo_root.rglob("*"):
+            if not path.is_file() or path.suffix not in YAML_SUFFIXES:
+                continue
+
+            relative_path = path.relative_to(repo_root).as_posix()
+            if relative_path in SKIP_FILES:
+                continue
+
+            if any(part in SKIP_DIR_NAMES for part in path.parts):
+                continue
+
+            try:
+                with path.open("r", encoding="utf-8") as handle:
+                    yaml.safe_load(handle)
+            except yaml.YAMLError as error:
+                invalid_files.append((relative_path, str(error).splitlines()[0]))
+            except Exception as error:
+                invalid_files.append((relative_path, f"Unexpected error: {error}"))
+
+        self.assertFalse(
+            invalid_files,
+            "Found invalid YAML files:\n"
+            + "\n".join(f"- {path}: {error}" for path, error in invalid_files),
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/lint/__init__.py

@@ -0,0 +1 @@
+

tests/lint/test_all_test_files_have_tests.py

@@ -0,0 +1,90 @@
+#!/usr/bin/env python3
+import ast
+import unittest
+from pathlib import Path
+
+
+class TestTestFilesContainUnittestTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.repo_root = Path(__file__).resolve().parents[2]
+        self.tests_dir = self.repo_root / "tests"
+        self.assertTrue(
+            self.tests_dir.is_dir(),
+            f"'tests' directory not found at: {self.tests_dir}",
+        )
+
+    def _iter_test_files(self) -> list[Path]:
+        return sorted(self.tests_dir.rglob("test_*.py"))
+
+    def _file_contains_runnable_unittest_test(self, path: Path) -> bool:
+        source = path.read_text(encoding="utf-8")
+
+        try:
+            tree = ast.parse(source, filename=str(path))
+        except SyntaxError as error:
+            raise AssertionError(f"SyntaxError in {path}: {error}") from error
+
+        testcase_aliases = {"TestCase"}
+        unittest_aliases = {"unittest"}
+
+        for node in tree.body:
+            if isinstance(node, ast.Import):
+                for import_name in node.names:
+                    if import_name.name == "unittest":
+                        unittest_aliases.add(import_name.asname or "unittest")
+            elif isinstance(node, ast.ImportFrom) and node.module == "unittest":
+                for import_name in node.names:
+                    if import_name.name == "TestCase":
+                        testcase_aliases.add(import_name.asname or "TestCase")
+
+        def is_testcase_base(base: ast.expr) -> bool:
+            if isinstance(base, ast.Name) and base.id in testcase_aliases:
+                return True
+
+            if isinstance(base, ast.Attribute) and base.attr == "TestCase":
+                return (
+                    isinstance(base.value, ast.Name)
+                    and base.value.id in unittest_aliases
+                )
+
+            return False
+
+        for node in tree.body:
+            if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef)) and (
+                node.name.startswith("test_")
+            ):
+                return True
+
+        for node in tree.body:
+            if not isinstance(node, ast.ClassDef):
+                continue
+
+            if not any(is_testcase_base(base) for base in node.bases):
+                continue
+
+            for item in node.body:
+                if isinstance(item, (ast.FunctionDef, ast.AsyncFunctionDef)) and (
+                    item.name.startswith("test_")
+                ):
+                    return True
+
+        return False
+
+    def test_all_test_py_files_contain_runnable_tests(self) -> None:
+        test_files = self._iter_test_files()
+        self.assertTrue(test_files, "No test_*.py files found under tests/")
+
+        offenders = []
+        for path in test_files:
+            if not self._file_contains_runnable_unittest_test(path):
+                offenders.append(path.relative_to(self.repo_root).as_posix())
+
+        self.assertFalse(
+            offenders,
+            "These test_*.py files do not define any unittest-runnable tests:\n"
+            + "\n".join(f"- {path}" for path in offenders),
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/lint/test_test_file_naming.py

@@ -0,0 +1,25 @@
+import unittest
+from pathlib import Path
+
+
+class TestTestFileNaming(unittest.TestCase):
+    def test_all_python_files_use_test_prefix(self):
+        tests_root = Path(__file__).resolve().parents[1]
+        invalid_files = []
+
+        for path in tests_root.rglob("*.py"):
+            if path.name == "__init__.py":
+                continue
+
+            if not path.name.startswith("test_"):
+                invalid_files.append(path.relative_to(tests_root).as_posix())
+
+        self.assertFalse(
+            invalid_files,
+            "The following Python files do not start with 'test_':\n"
+            + "\n".join(f"- {path}" for path in invalid_files),
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/security/__init__.py

@@ -0,0 +1 @@
+

tests/security/test_config_hygiene.py

@@ -0,0 +1,57 @@
+import subprocess
+import unittest
+from pathlib import Path
+
+import yaml
+
+
+class TestConfigHygiene(unittest.TestCase):
+    def setUp(self) -> None:
+        self.repo_root = Path(__file__).resolve().parents[2]
+        self.sample_config_path = self.repo_root / "app" / "config.sample.yaml"
+
+    def _is_tracked(self, path: str) -> bool:
+        result = subprocess.run(
+            ["git", "ls-files", "--error-unmatch", path],
+            cwd=self.repo_root,
+            check=False,
+            capture_output=True,
+            text=True,
+        )
+        return result.returncode == 0
+
+    def _find_values_for_key(self, data, key_name: str):
+        if isinstance(data, dict):
+            for key, value in data.items():
+                if key == key_name:
+                    yield value
+                yield from self._find_values_for_key(value, key_name)
+        elif isinstance(data, list):
+            for item in data:
+                yield from self._find_values_for_key(item, key_name)
+
+    def test_runtime_only_files_are_ignored_and_untracked(self):
+        gitignore_lines = (
+            (self.repo_root / ".gitignore").read_text(encoding="utf-8").splitlines()
+        )
+
+        self.assertIn("app/config.yaml", gitignore_lines)
+        self.assertIn(".env", gitignore_lines)
+        self.assertFalse(self._is_tracked("app/config.yaml"))
+        self.assertFalse(self._is_tracked(".env"))
+
+    def test_sample_config_keeps_the_nasa_api_key_placeholder(self):
+        with self.sample_config_path.open("r", encoding="utf-8") as handle:
+            sample_config = yaml.safe_load(handle)
+
+        nasa_api_keys = list(self._find_values_for_key(sample_config, "nasa_api_key"))
+        self.assertEqual(
+            nasa_api_keys,
+            ["YOUR_REAL_KEY_HERE"],
+            "config.sample.yaml should only contain the documented NASA API key "
+            "placeholder.",
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/security/test_sample_config_urls.py

@@ -0,0 +1,43 @@
+import unittest
+from pathlib import Path
+
+import yaml
+
+ALLOWED_URL_PREFIXES = ("https://", "mailto:", "tel:")
+URL_KEYS = {"url", "imprint", "imprint_url"}
+
+
+class TestSampleConfigUrls(unittest.TestCase):
+    def setUp(self) -> None:
+        repo_root = Path(__file__).resolve().parents[2]
+        sample_config_path = repo_root / "app" / "config.sample.yaml"
+        with sample_config_path.open("r", encoding="utf-8") as handle:
+            self.sample_config = yaml.safe_load(handle)
+
+    def _iter_urls(self, data, path="root"):
+        if isinstance(data, dict):
+            for key, value in data.items():
+                next_path = f"{path}.{key}"
+                if key in URL_KEYS and isinstance(value, str):
+                    yield next_path, value
+                yield from self._iter_urls(value, next_path)
+        elif isinstance(data, list):
+            for index, item in enumerate(data):
+                yield from self._iter_urls(item, f"{path}[{index}]")
+
+    def test_sample_config_urls_use_safe_schemes(self):
+        invalid_urls = [
+            f"{path} -> {url}"
+            for path, url in self._iter_urls(self.sample_config)
+            if not url.startswith(ALLOWED_URL_PREFIXES)
+        ]
+
+        self.assertFalse(
+            invalid_urls,
+            "The sample config contains URLs with unsupported schemes:\n"
+            + "\n".join(f"- {entry}" for entry in invalid_urls),
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/unit/__init__.py

@@ -0,0 +1 @@
+"""Unit test package for Portfolio UI."""

tests/unit/test_cache_manager.py

@@ -0,0 +1,72 @@
+import unittest
+from pathlib import Path
+from tempfile import TemporaryDirectory
+from unittest.mock import Mock, patch
+
+import requests
+
+from app.utils.cache_manager import CacheManager
+
+
+class TestCacheManager(unittest.TestCase):
+    def test_init_creates_cache_directory(self):
+        with TemporaryDirectory() as temp_dir:
+            cache_dir = Path(temp_dir) / "cache"
+
+            self.assertFalse(cache_dir.exists())
+
+            CacheManager(str(cache_dir))
+
+            self.assertTrue(cache_dir.is_dir())
+
+    def test_clear_cache_removes_files_but_keeps_subdirectories(self):
+        with TemporaryDirectory() as temp_dir:
+            cache_dir = Path(temp_dir) / "cache"
+            nested_dir = cache_dir / "nested"
+            nested_dir.mkdir(parents=True)
+            file_path = cache_dir / "icon.png"
+            file_path.write_bytes(b"icon")
+
+            manager = CacheManager(str(cache_dir))
+            manager.clear_cache()
+
+            self.assertFalse(file_path.exists())
+            self.assertTrue(nested_dir.is_dir())
+
+    @patch("app.utils.cache_manager.requests.get")
+    def test_cache_file_downloads_and_stores_response(self, mock_get):
+        with TemporaryDirectory() as temp_dir:
+            manager = CacheManager(str(Path(temp_dir) / "cache"))
+            response = Mock()
+            response.headers = {"Content-Type": "image/svg+xml; charset=utf-8"}
+            response.iter_content.return_value = [b"<svg>ok</svg>"]
+            response.raise_for_status.return_value = None
+            mock_get.return_value = response
+
+            cached_path = manager.cache_file("https://example.com/logo/download")
+
+            self.assertIsNotNone(cached_path)
+            self.assertTrue(cached_path.startswith("cache/logo_"))
+            self.assertTrue(cached_path.endswith(".svg"))
+
+            stored_file = Path(manager.cache_dir) / Path(cached_path).name
+            self.assertEqual(stored_file.read_bytes(), b"<svg>ok</svg>")
+            mock_get.assert_called_once_with(
+                "https://example.com/logo/download",
+                stream=True,
+                timeout=5,
+            )
+
+    @patch("app.utils.cache_manager.requests.get")
+    def test_cache_file_returns_none_when_request_fails(self, mock_get):
+        with TemporaryDirectory() as temp_dir:
+            manager = CacheManager(str(Path(temp_dir) / "cache"))
+            mock_get.side_effect = requests.RequestException("network")
+
+            cached_path = manager.cache_file("https://example.com/icon.png")
+
+            self.assertIsNone(cached_path)
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/unit/test_check_hadolint_sarif.py

@@ -0,0 +1,49 @@
+import json
+import unittest
+from pathlib import Path
+from tempfile import TemporaryDirectory
+
+from utils import check_hadolint_sarif
+
+
+class TestCheckHadolintSarif(unittest.TestCase):
+    def test_main_returns_zero_for_clean_sarif(self):
+        sarif_payload = {
+            "runs": [
+                {
+                    "results": [],
+                }
+            ]
+        }
+
+        with TemporaryDirectory() as temp_dir:
+            sarif_path = Path(temp_dir) / "clean.sarif"
+            sarif_path.write_text(json.dumps(sarif_payload), encoding="utf-8")
+
+            exit_code = check_hadolint_sarif.main([str(sarif_path)])
+
+        self.assertEqual(exit_code, 0)
+
+    def test_main_returns_one_for_warnings_or_errors(self):
+        sarif_payload = {
+            "runs": [
+                {
+                    "results": [
+                        {"level": "warning"},
+                        {"level": "error"},
+                    ],
+                }
+            ]
+        }
+
+        with TemporaryDirectory() as temp_dir:
+            sarif_path = Path(temp_dir) / "warnings.sarif"
+            sarif_path.write_text(json.dumps(sarif_payload), encoding="utf-8")
+
+            exit_code = check_hadolint_sarif.main([str(sarif_path)])
+
+        self.assertEqual(exit_code, 1)
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/unit/test_compute_card_classes.py

@@ -0,0 +1,39 @@
+import unittest
+
+from app.utils.compute_card_classes import compute_card_classes
+
+
+class TestComputeCardClasses(unittest.TestCase):
+    def test_single_card_uses_full_width_classes(self):
+        lg_classes, md_classes = compute_card_classes([{"title": "One"}])
+
+        self.assertEqual(lg_classes, ["col-lg-12"])
+        self.assertEqual(md_classes, ["col-md-12"])
+
+    def test_two_cards_split_evenly(self):
+        lg_classes, md_classes = compute_card_classes([{}, {}])
+
+        self.assertEqual(lg_classes, ["col-lg-6", "col-lg-6"])
+        self.assertEqual(md_classes, ["col-md-6", "col-md-6"])
+
+    def test_three_cards_use_thirds(self):
+        lg_classes, md_classes = compute_card_classes([{}, {}, {}])
+
+        self.assertEqual(lg_classes, ["col-lg-4", "col-lg-4", "col-lg-4"])
+        self.assertEqual(md_classes, ["col-md-6", "col-md-6", "col-md-12"])
+
+    def test_five_cards_use_balanced_large_layout(self):
+        lg_classes, md_classes = compute_card_classes([{}, {}, {}, {}, {}])
+
+        self.assertEqual(
+            lg_classes,
+            ["col-lg-6", "col-lg-6", "col-lg-4", "col-lg-4", "col-lg-4"],
+        )
+        self.assertEqual(
+            md_classes,
+            ["col-md-6", "col-md-6", "col-md-6", "col-md-6", "col-md-12"],
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/unit/test_configuration_resolver.py

@@ -0,0 +1,74 @@
+import unittest
+
+from app.utils.configuration_resolver import ConfigurationResolver
+
+
+class TestConfigurationResolver(unittest.TestCase):
+    def test_resolve_links_replaces_mapping_link_with_target_object(self):
+        config = {
+            "profiles": [
+                {"name": "Mastodon", "url": "https://example.com/@user"},
+            ],
+            "featured": {"link": "profiles.mastodon"},
+        }
+
+        resolver = ConfigurationResolver(config)
+        resolver.resolve_links()
+
+        self.assertEqual(
+            resolver.get_config()["featured"],
+            {"name": "Mastodon", "url": "https://example.com/@user"},
+        )
+
+    def test_resolve_links_expands_children_link_to_list_entries(self):
+        config = {
+            "accounts": {
+                "children": [
+                    {"name": "Matrix", "url": "https://matrix.example"},
+                    {"name": "Signal", "url": "https://signal.example"},
+                ]
+            },
+            "navigation": {
+                "children": [
+                    {"link": "accounts.children"},
+                ]
+            },
+        }
+
+        resolver = ConfigurationResolver(config)
+        resolver.resolve_links()
+
+        self.assertEqual(
+            resolver.get_config()["navigation"]["children"],
+            [
+                {"name": "Matrix", "url": "https://matrix.example"},
+                {"name": "Signal", "url": "https://signal.example"},
+            ],
+        )
+
+    def test_resolve_links_rejects_non_list_children(self):
+        config = {"navigation": {"children": {"name": "Invalid"}}}
+
+        resolver = ConfigurationResolver(config)
+
+        with self.assertRaises(ValueError):
+            resolver.resolve_links()
+
+    def test_find_entry_handles_case_and_space_insensitive_paths(self):
+        config = {
+            "Social Networks": {
+                "children": [
+                    {"name": "Friendica", "url": "https://friendica.example"},
+                ]
+            }
+        }
+
+        resolver = ConfigurationResolver(config)
+
+        entry = resolver._find_entry(config, "socialnetworks.friendica", False)
+
+        self.assertEqual(entry["url"], "https://friendica.example")
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/unit/test_export_runtime_requirements.py

@@ -0,0 +1,45 @@
+import unittest
+from pathlib import Path
+from tempfile import TemporaryDirectory
+from unittest.mock import patch
+
+from utils import export_runtime_requirements
+
+
+class TestExportRuntimeRequirements(unittest.TestCase):
+    def test_load_runtime_requirements_reads_project_dependencies(self):
+        pyproject_content = """
+[project]
+dependencies = [
+    "flask",
+    "requests>=2",
+]
+""".lstrip()
+
+        with TemporaryDirectory() as temp_dir:
+            pyproject_path = Path(temp_dir) / "pyproject.toml"
+            pyproject_path.write_text(pyproject_content, encoding="utf-8")
+
+            requirements = export_runtime_requirements.load_runtime_requirements(
+                pyproject_path
+            )
+
+        self.assertEqual(requirements, ["flask", "requests>=2"])
+
+    def test_main_prints_requirements_from_selected_pyproject(self):
+        pyproject_content = """
+[project]
+dependencies = [
+    "pyyaml",
+]
+""".lstrip()
+
+        with TemporaryDirectory() as temp_dir:
+            pyproject_path = Path(temp_dir) / "pyproject.toml"
+            pyproject_path.write_text(pyproject_content, encoding="utf-8")
+
+            with patch("builtins.print") as mock_print:
+                exit_code = export_runtime_requirements.main([str(pyproject_path)])
+
+        self.assertEqual(exit_code, 0)
+        mock_print.assert_called_once_with("pyyaml")

tests/unit/test_main.py

@@ -0,0 +1,72 @@
+import subprocess
+import unittest
+from pathlib import Path
+from tempfile import TemporaryDirectory
+from unittest.mock import patch
+
+import main as portfolio_main
+
+
+class TestMainCli(unittest.TestCase):
+    def test_load_targets_parses_help_comments(self):
+        makefile_content = """
+.PHONY: foo bar
+foo:
+\t# Run foo
+\t@echo foo
+
+bar:
+\t@echo bar
+""".lstrip()
+
+        with TemporaryDirectory() as temp_dir:
+            makefile_path = Path(temp_dir) / "Makefile"
+            makefile_path.write_text(makefile_content, encoding="utf-8")
+
+            targets = portfolio_main.load_targets(makefile_path)
+
+        self.assertEqual(targets, [("foo", "Run foo"), ("bar", "")])
+
+    @patch("main.subprocess.check_call")
+    def test_run_command_executes_subprocess(self, mock_check_call):
+        portfolio_main.run_command(["make", "lint"])
+
+        mock_check_call.assert_called_once_with(["make", "lint"])
+
+    @patch("main.sys.exit", side_effect=SystemExit(7))
+    @patch(
+        "main.subprocess.check_call",
+        side_effect=subprocess.CalledProcessError(7, ["make", "lint"]),
+    )
+    def test_run_command_exits_with_subprocess_return_code(
+        self,
+        _mock_check_call,
+        mock_sys_exit,
+    ):
+        with self.assertRaises(SystemExit) as context:
+            portfolio_main.run_command(["make", "lint"])
+
+        self.assertEqual(context.exception.code, 7)
+        mock_sys_exit.assert_called_once_with(7)
+
+    @patch("main.run_command")
+    @patch("main.load_targets", return_value=[("lint", "Run lint suite")])
+    def test_main_dispatches_selected_target(
+        self, _mock_load_targets, mock_run_command
+    ):
+        with patch("sys.argv", ["main.py", "lint"]):
+            portfolio_main.main()
+
+        mock_run_command.assert_called_once_with(["make", "lint"], dry_run=False)
+
+    @patch("main.run_command")
+    @patch("main.load_targets", return_value=[("lint", "Run lint suite")])
+    def test_main_passes_dry_run_flag(self, _mock_load_targets, mock_run_command):
+        with patch("sys.argv", ["main.py", "--dry-run", "lint"]):
+            portfolio_main.main()
+
+        mock_run_command.assert_called_once_with(["make", "lint"], dry_run=True)
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/unit/test_navigation_template.py

@@ -0,0 +1,70 @@
+import unittest
+from html.parser import HTMLParser
+from pathlib import Path
+
+from jinja2 import Environment, FileSystemLoader, select_autoescape
+
+
+class AnchorCollector(HTMLParser):
+    def __init__(self):
+        super().__init__()
+        self.anchors = []
+
+    def handle_starttag(self, tag, attrs):
+        if tag == "a":
+            self.anchors.append(dict(attrs))
+
+
+class TestNavigationTemplate(unittest.TestCase):
+    def test_top_level_dropdowns_have_bootstrap_toggle_attribute(self):
+        template_dir = Path(__file__).resolve().parents[2] / "app" / "templates"
+        environment = Environment(
+            loader=FileSystemLoader(template_dir),
+            autoescape=select_autoescape(),
+        )
+        environment.globals["url_for"] = lambda _endpoint, filename: (
+            f"/static/{filename}"
+        )
+
+        rendered = environment.get_template("moduls/navigation.html.j2").render(
+            menu_type="header",
+            platform={
+                "titel": "Portfolio",
+                "logo": {"cache": "logo.png"},
+            },
+            navigation={
+                "header": {
+                    "children": [
+                        {
+                            "name": "Apps",
+                            "description": "Application menu",
+                            "icon": {"class": "fa-solid fa-grid"},
+                            "children": [
+                                {
+                                    "name": "Example",
+                                    "description": "Example app",
+                                    "icon": {"class": "fa-solid fa-link"},
+                                    "url": "https://example.test",
+                                }
+                            ],
+                        }
+                    ]
+                }
+            },
+        )
+
+        parser = AnchorCollector()
+        parser.feed(rendered)
+        dropdown_toggles = [
+            anchor
+            for anchor in parser.anchors
+            if "nav-link" in anchor.get("class", "")
+            and "dropdown-toggle" in anchor.get("class", "")
+        ]
+
+        self.assertEqual(len(dropdown_toggles), 1)
+        self.assertEqual(dropdown_toggles[0].get("data-bs-toggle"), "dropdown")
+
+
+if __name__ == "__main__":
+    unittest.main()

utils/check_hadolint_sarif.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+"""Fail when a hadolint SARIF report contains warnings or errors."""
+
+from __future__ import annotations
+
+import json
+import sys
+from pathlib import Path
+
+
+def main(argv: list[str] | None = None) -> int:
+    args = argv if argv is not None else sys.argv[1:]
+    sarif_path = Path(args[0] if args else "hadolint-results.sarif")
+
+    with sarif_path.open("r", encoding="utf-8") as handle:
+        sarif = json.load(handle)
+
+    results = sarif.get("runs", [{}])[0].get("results", [])
+    levels = [result.get("level", "") for result in results]
+    warnings = sum(1 for level in levels if level == "warning")
+    errors = sum(1 for level in levels if level == "error")
+
+    print(f"SARIF results: total={len(results)} warnings={warnings} errors={errors}")
+    return 1 if warnings + errors > 0 else 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

utils/export_runtime_requirements.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+"""Print runtime dependencies from pyproject.toml, one per line."""
+
+import sys
+import tomllib
+from pathlib import Path
+
+DEFAULT_PYPROJECT_PATH = Path(__file__).resolve().parents[1] / "pyproject.toml"
+
+
+def load_runtime_requirements(
+    pyproject_path: Path = DEFAULT_PYPROJECT_PATH,
+) -> list[str]:
+    with pyproject_path.open("rb") as handle:
+        pyproject = tomllib.load(handle)
+    return list(pyproject["project"]["dependencies"])
+
+
+def main(argv: list[str] | None = None) -> int:
+    args = argv if argv is not None else sys.argv[1:]
+    pyproject_path = Path(args[0]) if args else DEFAULT_PYPROJECT_PATH
+
+    for requirement in load_runtime_requirements(pyproject_path):
+        print(requirement)
+
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())