Refactored; https://chatgpt.com/share/12370808-a645-405b-bbd0-e59cf7b648c7

scripts/base.sh

@@ -95,15 +95,28 @@ set_device_path(){
   info "Optimal blocksize set to: $OPTIMAL_BLOCKSIZE" || error
 }
 
-overwritte_device_with_zeros(){
-  question "Should $device_path be overwritten with zeros before copying?(y/N)" && read -r copy_zeros_to_device
-  if [ "$copy_zeros_to_device" = "y" ]
-    then
-      info "Overwritting..." &&
-      dd if=/dev/zero of="$device_path" bs="$OPTIMAL_BLOCKSIZE" status=progress || error "Overwritting $device_path failed."
+overwrite_device() {
+  question "Should $device_path be overwritten with zeros before copying? (y/N/block count)" && read -r copy_zeros_to_device
+  case "$copy_zeros_to_device" in
+    y)
+      info "Overwriting entire device..." &&
+      dd if=/dev/zero of="$device_path" bs="$OPTIMAL_BLOCKSIZE" status=progress || error "Overwriting $device_path failed."
+      ;;
+    N)
+      info "Skipping Overwriting..."
+      ;;
+    ''|*[!0-9]*)
+      error "Invalid input."
+      ;;
+    *)
+      if [[ "$copy_zeros_to_device" =~ ^[0-9]+$ ]]; then
+        info "Overwriting $copy_zeros_to_device blocks..." &&
+        dd if=/dev/zero of="$device_path" bs="$OPTIMAL_BLOCKSIZE" count="$copy_zeros_to_device" status=progress || error "Overwriting $device_path failed."
       else
-      info "Skipping Overwritting..."
+        error "Invalid input. Block count must be a number."
       fi
+      ;;
+  esac
 }
 
 get_packages(){

scripts/encryption/storage/single_drive/setup.sh

@@ -7,7 +7,7 @@ echo "Setups disk encryption"
 
 set_device_mount_partition_and_mapper_paths
 
-overwritte_device_with_zeros
+overwrite_device
 
 info "Creating new GPT partition table..."
 (	echo "g"	# create a new empty GPT partition table

scripts/image/setup.sh

@@ -69,14 +69,21 @@ case "$operation_system" in
         image_checksum="0E1BA7FFD14AAAE5F0462C8293D95B62C3BF1D9E726E26977BD04772C55680D3"
         ;;
       "arch")
-        question "Which Raspberry Pi will be used(e.g.:1,2,3,4,aarch64):" && read -r version
+        question "Which Raspberry Pi will be used (e.g.: 1, 2, 3, 4...):" && read -r version
         base_download_url="http://os.archlinuxarm.org/os/";
-        if [ "$version" == "1" ]
-          then
+        image_name="ArchLinuxARM-rpi-$version.tar.gz"
+        case "$version" in
+          "1")
             image_name="ArchLinuxARM-rpi-latest.tar.gz"
-          else
-            image_name="ArchLinuxARM-rpi-$version-latest.tar.gz"
-        fi
+            ;;
+          "2" | "3")
+            image_name="ArchLinuxARM-rpi-armv7-latest.tar.gz"
+            ;;
+
+          "4")
+            image_name="ArchLinuxARM-rpi-aarch64-latest.tar.gz"
+            ;;
+        esac
         ;;
       "manjaro")
         question "Which version(e.g.:architect,gnome) should be used:" && read -r version
@@ -256,7 +263,7 @@ if [ "$transfer_image" = "y" ]
         info "Skipping partition table deletion..."
     fi
 
-    overwritte_device_with_zeros
+    overwrite_device
 
     info "Starting image transfer..."
     if [ "$distribution" = "arch" ]
@@ -402,41 +409,35 @@ if [ "$distribution" != "manjaro" ]
 
   copy_resolve_conf
 
-  question "Should the password of the standart user \"$target_username\" be changed?(y/N)" && read -r change_password
-  if [ "$change_password" == "y" ]
-    then
+  question "Type in new password (leave empty to skip): " && read -r password_1
+
+  if [ -n "$password_1" ]; then
+    question "Repeat new password for \"$target_username\": " && read -r password_2
+    if [ "$password_1" = "$password_2" ]; then
       info "Changing passwords on target system..."
-      question "Type in new password: " && read -r password_1
-      question "Repeat new password\"$target_username\"" && read -r password_2
-      if [ "$password_1" = "$password_2" ]
-        then
       (
-          echo "(
-                echo '$password_1'
-                echo '$password_1'
-                ) | passwd $target_username"
-          echo "(
-                echo '$password_1'
-                echo '$password_1'
-                ) | passwd"
-          ) | chroot "$root_mount_path" /bin/bash || error
+        echo "$password_1" | chroot "$root_mount_path" passwd --stdin "$target_username"
+        echo "$password_1" | chroot "$root_mount_path" passwd --stdin
+      ) || error "Failed to change password."
     else
       error "Passwords didn't match."
     fi
   else
-      info "Skipped password change..."
+    info "No password change requested, skipped password change..."
   fi
 
-  hostname_path="$root_mount_path""etc/hostname"
-  question "Should the hostname be changed?(y/N)" && read -r change_hostname
-  if [ "$change_hostname" == "y" ]
-    then
-      question "Type in the hostname:" && read -r target_hostname;
-      echo "$target_hostname" > "$hostname_path" || error
+
+  hostname_path="$root_mount_path/etc/hostname"
+
+  question "Type in the hostname (leave empty to skip): " && read -r target_hostname
+
+  if [ -n "$target_hostname" ]; then
+    echo "$target_hostname" > "$hostname_path" || error "Failed to set hostname."
   else
     target_hostname=$(cat "$hostname_path")
-      info "Skipped hostname change..."
+    info "No hostname change requested, skipped hostname change..."
   fi
+
   info "Used hostname is: $target_hostname"
 
   case "$distribution" in