fix: Switch to nix installer from cachix

Author: DoomHammer

.github/workflows/check.yml

@@ -16,13 +16,15 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@main
+        uses: cachix/install-nix-action@v31
         with:
-          logger: pretty
-
-      - name: Nix Magic Cache
-        uses: DeterminateSystems/flakehub-cache-action@main
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+          enable_kvm: true
+          extra_nix_config: |
+            keep-outputs = true
+            keep-failed = true
 
       - name: Check the root Flake
         run: nix flake check --print-build-logs

.github/workflows/evaluate-home-manager.yml

@@ -20,13 +20,15 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@main
+        uses: cachix/install-nix-action@v31
         with:
-          logger: pretty
-
-      - name: Nix Magic Cache
-        uses: DeterminateSystems/flakehub-cache-action@main
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+          enable_kvm: true
+          extra_nix_config: |
+            keep-outputs = true
+            keep-failed = true
 
       - name: Evaluate Home Manager configurations
         run: nix build -f .config/nix/parts/programs/ciHomeManagerConfigurations.nix --print-build-logs

.github/workflows/update-flakes.yml

@@ -16,20 +16,28 @@ jobs:
         with:
           app-id: ${{ secrets.APP_ID }}
           private-key: ${{ secrets.APP_PRIVATE_KEY }}
+
       - name: Checkout repository
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           token: ${{ steps.app-token.outputs.token }}
           persist-credentials: false
+
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@main
+        uses: cachix/install-nix-action@v31
         with:
-          logger: pretty
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+          enable_kvm: true
+          extra_nix_config: |
+            keep-outputs = true
+            keep-failed = true
+
       - name: Make changes to pull request
         run: |
           nix flake update
           cd .config/nix
           nix flake update
+
       - name: Create Pull Request
         id: cpr
         uses: peter-evans/create-pull-request@v7