diff --git a/.gitea/workflows/docker-build.yml b/.gitea/workflows/docker-build.yml
index 6700c2a..7f89870 100644
--- a/.gitea/workflows/docker-build.yml
+++ b/.gitea/workflows/docker-build.yml
@@ -34,7 +34,7 @@ jobs:
         uses: docker/metadata-action@v4
         with:
           images: |
-            ${{ secrets.DOCKER_USERNAME }}/ha-voltronic-mqtt
+            gitea.home-nas-ds.org/${{ github.repository }}
           tags: |
             type=ref,event=branch
             type=ref,event=pr
@@ -42,12 +42,13 @@ jobs:
             type=semver,pattern={{major}}.{{minor}}
             type=raw,value=latest,enable={{is_default_branch}}
 
-      - name: Login to Docker Hub
+      - name: Login to Gitea Container Registry
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v2
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
+          registry: gitea.home-nas-ds.org
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
 
       - name: Build and push Docker image
         uses: docker/build-push-action@v4
diff --git a/.gitea/workflows/docker-cleanup.yml b/.gitea/workflows/docker-cleanup.yml
index 616fd6b..9e981f9 100644
--- a/.gitea/workflows/docker-cleanup.yml
+++ b/.gitea/workflows/docker-cleanup.yml
@@ -15,11 +15,12 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
 
-      - name: Login to Docker Hub
+      - name: Login to Gitea Container Registry
         uses: docker/login-action@v2
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
+          registry: gitea.home-nas-ds.org
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
 
       - name: Cleanup old development images
         run: |
diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index 9ec23c5..068206f 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -373,14 +373,17 @@ automation:
 
 ### Workflows
 
-1. **docker-build.yml** - Build e push multi-arch su tag/push
+1. **docker-build.yml** - Build e push multi-arch su Gitea Registry
 2. **docker-test.yml** - Test build su PR
 3. **docker-cleanup.yml** - Pulizia immagini vecchie (schedulato)
 
-### Secrets Richiesti
+### Autenticazione
 
-- `DOCKER_USERNAME`
-- `DOCKER_PASSWORD`
+Gitea Actions usa automaticamente `${{ github.token }}` per autenticarsi al registry interno. Non sono necessari secrets esterni.
+
+### Registry
+
+Le immagini Docker vengono pubblicate su: `gitea.home-nas-ds.org/<username>/<repository>:tag`
 
 ## Troubleshooting