Add CI

.github/dependabot.yml

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+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/main.yml

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+# This is a basic workflow to help you get started with Actions
+
+name: CI 
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the "master" branch
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+jobs:
+    lint:
+      runs-on: ubuntu-latest
+      steps:
+        - name: Checkout
+          uses: actions/checkout@v4
+        - name: Install depends
+          run: sudo apt-get install -qy j2cli make yamllint
+        - name: Run jinja
+          run: make j
+        - name: Run Yaml lint
+          run: yamllint build

.yamllint

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+---
+extends: default
+rules:
+  document-start: disable
+  comments:
+    min-spaces-from-content: 1