diff --git a/.gitea/workflows/nightly.yml b/.gitea/workflows/nightly.yml
index 4e6d1ce..c31720c 100644
--- a/.gitea/workflows/nightly.yml
+++ b/.gitea/workflows/nightly.yml
@@ -19,34 +19,40 @@ jobs:
     runs-on: server-runner
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          clean: true
+        run: |
+          if [ -d .git ]; then
+            git fetch origin nightly
+            git reset --hard origin/nightly
+            git clean -fd
+          else
+            git clone --depth=1 --branch nightly https://gitea.it-drui.de/viewit/KX-Bridge-Release.git .
+          fi
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+        run: |
+          docker run --rm --privileged tonistiigi/binfmt:latest --install all
 
       - name: Set up buildx
-        uses: docker/setup-buildx-action@v3
+        run: |
+          docker buildx inspect kxbuilder 2>/dev/null || \
+            docker buildx create --name kxbuilder --use
+          docker buildx use kxbuilder
 
       - name: Login to Gitea registry
-        uses: docker/login-action@v3
-        with:
-          registry: gitea.it-drui.de
-          username: ${{ secrets.REGISTRY_USER }}
-          password: ${{ secrets.REGISTRY_TOKEN }}
+        run: |
+          echo "${{ secrets.REGISTRY_TOKEN }}" | \
+            docker login gitea.it-drui.de -u "${{ secrets.REGISTRY_USER }}" --password-stdin
 
       - name: Build & push (amd64 + arm64)
         run: |
           DATE=$(date +%Y%m%d)
-          TAGS="gitea.it-drui.de/viewit/kx-bridge:nightly"
-          TAGS="$TAGS,gitea.it-drui.de/viewit/kx-bridge:nightly-$DATE"
           docker buildx build \
             --platform linux/amd64,linux/arm64 \
             --push \
             --provenance=false \
             --no-cache \
-            $(echo "$TAGS" | tr ',' '\n' | sed 's/^/-t /') \
+            -t "gitea.it-drui.de/viewit/kx-bridge:nightly" \
+            -t "gitea.it-drui.de/viewit/kx-bridge:nightly-$DATE" \
             .
 
       - name: Set nightly tag
@@ -58,4 +64,4 @@ jobs:
           git config user.name "gitea-actions"
           git config user.email "actions@it-drui.de"
           git tag -f "$TAG"
-          git push origin "$TAG" --force
+          git push https://gitea-actions:${GITEA_TOKEN}@gitea.it-drui.de/viewit/KX-Bridge-Release.git "$TAG" --force
diff --git a/.gitea/workflows/pr-check.yml b/.gitea/workflows/pr-check.yml
index 7f0e553..9a80a1a 100644
--- a/.gitea/workflows/pr-check.yml
+++ b/.gitea/workflows/pr-check.yml
@@ -9,7 +9,15 @@ jobs:
   lint-and-test:
     runs-on: server-runner
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout
+        run: |
+          if [ -d .git ]; then
+            git fetch origin
+            git reset --hard origin/nightly
+            git clean -fd
+          else
+            git clone --depth=1 --branch nightly https://gitea.it-drui.de/viewit/KX-Bridge-Release.git .
+          fi
 
       - name: Dependencies installieren
         run: pip3 install -r requirements.txt
diff --git a/.gitea/workflows/release.yml b/.gitea/workflows/release.yml
index 6f48f5c..fe5a8e0 100644
--- a/.gitea/workflows/release.yml
+++ b/.gitea/workflows/release.yml
@@ -10,22 +10,30 @@ jobs:
     runs-on: server-runner
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          clean: true
+        run: |
+          TAG="${GITHUB_REF#refs/tags/}"
+          if [ -d .git ]; then
+            git fetch --tags origin
+            git checkout "$TAG"
+            git clean -fd
+          else
+            git clone --depth=1 --branch "$TAG" https://gitea.it-drui.de/viewit/KX-Bridge-Release.git .
+          fi
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
+        run: |
+          docker run --rm --privileged tonistiigi/binfmt:latest --install all
 
       - name: Set up buildx
-        uses: docker/setup-buildx-action@v3
+        run: |
+          docker buildx inspect kxbuilder 2>/dev/null || \
+            docker buildx create --name kxbuilder --use
+          docker buildx use kxbuilder
 
       - name: Login to Gitea registry
-        uses: docker/login-action@v3
-        with:
-          registry: gitea.it-drui.de
-          username: ${{ secrets.REGISTRY_USER }}
-          password: ${{ secrets.REGISTRY_TOKEN }}
+        run: |
+          echo "${{ secrets.REGISTRY_TOKEN }}" | \
+            docker login gitea.it-drui.de -u "${{ secrets.REGISTRY_USER }}" --password-stdin
 
       - name: Build & push (amd64 + arm64)
         run: |