diff --git a/.github/workflows/docker-publish.yml b/.github/workflows/docker-publish.yml
index de9aed7..de8a081 100644
--- a/.github/workflows/docker-publish.yml
+++ b/.github/workflows/docker-publish.yml
@@ -1,3 +1,4 @@
+---
 name: Docker
 
 # This workflow uses actions that are not certified by GitHub.
@@ -7,11 +8,11 @@ name: Docker
 
 on:
   push:
-    branches: [ "main" ]
+    branches: ["main"]
     # Publish semver tags as releases.
-    tags: [ 'v*.*.*' ]
+    tags: ['v*.*.*']
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
 env:
   # Use docker.io for Docker Hub if empty
@@ -55,13 +56,13 @@ jobs:
       # multi-platform images and export cache
       # https://github.com/docker/setup-buildx-action
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
+        uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226  # v3.0.0
 
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action
       - name: Log into registry ${{ env.REGISTRY }}
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
+        uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d  # v3.0.0
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
@@ -71,7 +72,7 @@ jobs:
       # https://github.com/docker/metadata-action
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934 # v5.0.0
+        uses: docker/metadata-action@96383f45573cb7f253c731d3b3ab81c87ef81934  # v5.0.0
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
@@ -79,7 +80,7 @@ jobs:
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
         id: build-and-push
-        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09 # v5.0.0
+        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09  # v5.0.0
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}
diff --git a/.yamllint b/.yamllint
new file mode 100644
index 0000000..0c01e2b
--- /dev/null
+++ b/.yamllint
@@ -0,0 +1,3 @@
+---
+rules:
+  line-length: disable
diff --git a/home-assistant-addon/config.yaml b/home-assistant-addon/config.yaml
index 46a618d..8825d9b 100644
--- a/home-assistant-addon/config.yaml
+++ b/home-assistant-addon/config.yaml
@@ -1,3 +1,4 @@
+---
 name: "HCPY"
 description: "Run HCPY as addon"
 version: "v1.0.5"
diff --git a/repository.yaml b/repository.yaml
index 3a1a4c0..9dc7f0b 100644
--- a/repository.yaml
+++ b/repository.yaml
@@ -1,3 +1,4 @@
+---
 name: HCPY
 url: https://github.com/hcpy2-0/hcpy
 maintainer: pmagyar, Meatballs1