add ci to template

Author: maxheld83

templates/base/.github/workflows/ci.yml

@@ -0,0 +1,22 @@
+name: CI
+on:
+  pull_request:
+  workflow_dispatch:
+  push:
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+jobs:
+  DeterminateCI:
+    uses: DeterminateSystems/ci/.github/workflows/workflow.yml@main
+    permissions:
+      id-token: "write"
+      contents: "read"
+    with:
+      fail-fast: false
+  flake-checker:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Check Nix flake Nixpkgs inputs
+        uses: DeterminateSystems/flake-checker-action@v9

templates/base/.github/workflows/nix_maintenance.yml

@@ -0,0 +1,24 @@
+name: Maintenance
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * 0" # runs weekly on Sunday at 01:00
+jobs:
+  nix-maintenance:
+    name: Nix Maintenance
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: DeterminateSystems/nix-installer-action@main
+        with:
+          determinate: true
+      - uses: DeterminateSystems/flakehub-cache-action@main
+      - uses: DeterminateSystems/update-flake-lock@main
+        with:
+          pr-title: "Update flake.lock"
+          pr-labels: |
+            dependencies
+            automated
+      - uses: DeterminateSystems/flake-checker-action@main
+        with:
+          fail-mode: true