try better caching at least

.gitea/workflows/deploy.yaml

@@ -18,13 +18,25 @@ jobs:
         with:
           fetch-depth: 0 # Fetch all history for tags
       - name: Install Nix
-        uses: cachix/install-nix-action@v31
+        uses: cachix/install-nix-action@7be5dee1421f63d07e71ce6e0a9f8a4b07c2a487
+      - name: "Cache Nix store"
+        uses: actions/cache@v4
+        id: nix-cache
+        with:
+          path: /tmp/nixcache
+          key: nix-${{ runner.os }}-nix-builder-image-${{ hashFiles('**/package.json', 'package-lock.json', '**/*.nix', '**/flake.lock') }}
+          restore-keys: |
+            nix-${{ runner.os }}-nix-builder-image
       - name: Setup Attic Cache
         uses: ryanccn/attic-action@3354ae812cb672e1381be4c7914204c44db53866
         with:
           endpoint: ${{ secrets.ATTIC_ENDPOINT }}
           cache: ${{ secrets.ATTIC_CACHE }}
           token: ${{ secrets.ATTIC_TOKEN }}
+      - name: "Import Nix store cache"
+        continue-on-error: true
+        # if: "steps.nix-cache.outputs.cache-hit == 'true'"
+        run: bash scripts/restore_cache.sh
       - name: Build container
         run: nix build .#act-runner-image
       - name: Check Nix flake
@@ -55,6 +67,10 @@ jobs:
           BRANCH: ${{ steps.vars.outputs.BRANCH }}
         run: |
           nix develop -c bash scripts/deploy.sh
+      - name: "Export Nix store cache"
+        if: always()
+        # if: "steps.nix-cache.outputs.cache-hit != 'true'"
+        run: bash scripts/populate_cache.sh
   nix-check:
     runs-on: nix-runner
     steps:
@@ -67,7 +83,7 @@ jobs:
         id: nix-cache
         with:
           path: /tmp/nixcache
-          key: nix-${{ runner.os }}-nix-builder-image-${{ hashFiles('**/package.json', 'package-lock.json', '**/*.nix', '**/flake.lock', '.npmrc', '.eleventy.js') }}
+          key: nix-${{ runner.os }}-nix-builder-image-${{ hashFiles('**/package.json', 'package-lock.json', '**/*.nix', '**/flake.lock') }}
           restore-keys: |
             nix-${{ runner.os }}-nix-builder-image
       - name: Setup Attic Cache