diff --git a/.gitea/workflows/avr-build.yaml b/.gitea/workflows/avr-build.yaml
new file mode 100644
index 0000000..5bb8e00
--- /dev/null
+++ b/.gitea/workflows/avr-build.yaml
@@ -0,0 +1,50 @@
+name: AVR Build
+
+on:
+  push:
+    branches:
+      - dev
+      - live
+      - main
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install AVR toolchain
+        run: |
+          apt-get update
+          apt-get install -y gcc-avr avr-libc binutils-avr make cppcheck
+
+      - name: Set build type from branch
+        id: vars
+        run: |
+          BRANCH="${GITHUB_REF_NAME}"
+
+          if [ "$BRANCH" = "dev" ]; then
+            echo "BUILD_TYPE=dev" >> $GITHUB_ENV
+            echo "PREFIX=DEV_ENO" >> $GITHUB_ENV
+          else
+            echo "BUILD_TYPE=live" >> $GITHUB_ENV
+            echo "PREFIX=ENO" >> $GITHUB_ENV
+          fi
+
+          echo "VERSION=${GITHUB_SHA::7}" >> $GITHUB_ENV
+
+      - name: Code check
+        run: cppcheck --enable=all --error-exitcode=1 src/
+
+      - name: Build firmware
+        run: |
+          make BUILD_TYPE=$BUILD_TYPE PREFIX=$PREFIX VERSION=$VERSION
+
+      - name: Upload hex
+        uses: actions/upload-artifact@v4
+        with:
+          name: firmware-${{ env.BUILD_TYPE }}
+          path: build/**/*.hex
\ No newline at end of file
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
deleted file mode 100644
index 66c5293..0000000
--- a/.gitlab-ci.yml
+++ /dev/null
@@ -1,38 +0,0 @@
-stages:
-  - build
-
-variables:
-  F_CPU: "8000000UL"
-
-before_script:
-  # nur nötig bei Shell Runner → Tools müssen installiert sein
-  - avr-gcc --version
-
-build_dev:
-  stage: build
-  tags:
-    - avr
-  script:
-    - VERSION=$(cat VERSION.txt)
-    - echo "Building version $VERSION"
-    - make MCU=atmega644pa BUILD_TYPE=dev VERSION=$VERSION
-  artifacts:
-    paths:
-      - build/dev/*.hex
-  rules:
-  - if: '$CI_COMMIT_BRANCH == "dev"'
-
-build_prod:
-  stage: build
-  tags:
-    - avr
-  script:
-    - VERSION=$(cat VERSION.txt)
-    - echo "Building DEV-Version $VERSION"
-    - make MCU=atmega644pa BUILD_TYPE=prod VERSION=$VERSION
-  artifacts:
-    paths:
-      - build/prod/*.hex
-  rules:
-    - if: '$CI_COMMIT_BRANCH == "main"'
-