diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 5f95ce2..0e4facb 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -8,24 +8,34 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@main
-      - name: Prepare APT cache dir
-        run: |
-          mkdir -p "$RUNNER_TEMP/apt-cache"/{archives,lists}
-      - name: Cache apt packages
+      - name: Restore installed‑packages manifest
+        id: pkg_cache
         uses: actions/cache@main
         with:
-          path: |
-            ${{ runner.temp }}/apt-cache/archives
-            ${{ runner.temp }}/apt-cache/lists
-          key: ${{ runner.os }}-apt-${{ matrix.os }}-${{ hashFiles('**/airconnect/airconnect_installer') }}
+          path: installed_packages.txt
+          key: ${{ runner.os }}-installed-${{ matrix.os }}
           restore-keys: |
-            ${{ runner.os }}-apt-${{ matrix.os }}-
-      - name: Install dependencies
+            ${{ runner.os }}-installed-${{ matrix.os }}-
+
+      - name: Re‑install previously installed packages
+        if: steps.pkg_cache.outputs.cache-hit == 'true'
+        run: |
+          sudo apt-get update
+          xargs -r sudo apt-get install -y < installed_packages.txt
+
+      - name: Bootstrap & save installed‑package list
+        if: steps.pkg_cache.outputs.cache-hit != 'true'
         run: |
-          sudo apt-get update \
-            -o Dir::Cache::Archives="$RUNNER_TEMP/apt-cache/archives" \
-            -o Dir::Cache::Lists="$RUNNER_TEMP/apt-cache/lists"
+          sudo apt-get update
           sudo apt-get install -y zsh
+          dpkg-query --showformat='${Package}\n' --show > installed_packages.txt
+
+      - name: Cache installed‑packages manifest
+        if: steps.pkg_cache.outputs.cache-hit != 'true'
+        uses: actions/cache@main
+        with:
+          path: installed_packages.txt
+          key: ${{ runner.os }}-installed-${{ matrix.os }}
 
       - name: Testing Shell script
         run: |
@@ -34,23 +44,3 @@ jobs:
           sudo zsh airconnect_installer
           sudo zsh airconnect_uninstaller
           sudo zsh airconnect_uninstaller || true
-
-  other-scripts:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@main
-      - name: Cache downloaded scripts
-        uses: actions/cache@main
-        with:
-          path: |
-            ${{ github.workspace }}/pihole-cloudflared
-            ${{ github.workspace }}/update_fastfetch
-          key: ${{ runner.os }}-scripts-${{ hashFiles('**/*.sh') }}
-          restore-keys: |
-            ${{ runner.os }}-scripts-
-
-      - name: Run script 'pihole-cloudflared'
-        run: sudo bash pihole-cloudflared
-
-      - name: Run script 'update_fastfetch'
-        run: sudo bash update_fastfetch