diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 093af5b1..8b2e7334 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -4,8 +4,6 @@ on:
   push:
     branches:
       - master
-  release:
-    types: [published]
 
 jobs:
   python:
@@ -40,7 +38,7 @@ jobs:
           git push
         working-directory: ./website
 
-  docker:
+  docker_nightly:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
@@ -58,21 +56,12 @@ jobs:
           username: ${{github.actor}}
           password: ${{secrets.GITHUB_TOKEN}}
 
-      - name: Generate image ID and version
-        run: |
-          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/oxigraph
-          # Change all uppercase to lowercase
-          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
-          # Strip git ref prefix from version
-          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
-          # Strip "v" prefix from tag name
-          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
-          # Use Docker `latest` tag convention
-          [ "$VERSION" == "master" ] && VERSION=latest
-          echo "IMAGE_ID=$IMAGE_ID" >> $GITHUB_ENV
-          echo "VERSION=$VERSION" >> $GITHUB_ENV
+      - uses: docker/metadata-action@v3
+        id: docker_meta
+        with:
+          images: ghcr.io/${{ github.repository_owner }}/oxigraph
+          tags: nightly
 
-      # Cache: https://github.com/docker/build-push-action/blob/master/docs/advanced/cache.md#github-cache
       - name: Build and publish Docker image
         uses: docker/build-push-action@v2
         with:
@@ -80,6 +69,8 @@ jobs:
           file: ./server/Dockerfile
           builder: ${{ steps.buildx.outputs.name }}
           push: true
-          tags: ${{ env.IMAGE_ID }}:${{ env.VERSION }}
+          tags: ${{ steps.docker_meta.outputs.tags }}
+          labels: ${{ steps.docker_meta.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
+          # Docs about caching: https://github.com/docker/build-push-action/blob/master/docs/advanced/cache.md#github-cache
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8978a65b..ae8f1ffb 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,12 +14,21 @@ jobs:
       - uses: docker/metadata-action@v3
         id: docker_meta
         with:
-          images: oxigraph/oxigraph
+          images: |
+            oxigraph/oxigraph
+            ghcr.io/${{ github.repository }}
       - uses: docker/setup-buildx-action@v1
-      - uses: docker/login-action@v1
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{github.actor}}
+          password: ${{secrets.GITHUB_TOKEN}}
       - uses: docker/build-push-action@v2
         with:
           context: .
diff --git a/server/README.md b/server/README.md
index 112c46c0..1cd37f44 100644
--- a/server/README.md
+++ b/server/README.md
@@ -135,7 +135,7 @@ Then a `docker-compose.yml` in the same folder, you can change the default user
 version: "3"
 services:
   oxigraph:
-    image: ghcr.io/oxigraph/oxigraph
+    image: ghcr.io/oxigraph/oxigraph:latest
     ## To build from local source code:
     # build:
     #   context: .
@@ -163,7 +163,7 @@ Once the `docker-compose.yaml` and `nginx.conf` are ready, start the Oxigraph se
 docker-compose up
 ```
 
-To make an update to the graph, first change `$OXIGRAPH_USER` and `$OXIGRAPH_PASSWORD`, or set the environment variables, then run:
+Then it is possible to update the graph using basic authentication mechanisms. For example with `curl`: change `$OXIGRAPH_USER` and `$OXIGRAPH_PASSWORD`, or set them as environment variables, then run this command to insert a simple triple:
 
 ```sh
 curl -X POST -u $OXIGRAPH_USER:$OXIGRAPH_PASSWORD -H 'Content-Type: application/sparql-update' --data 'INSERT DATA { <http://example.com/s> <http://example.com/p> <http://example.com/o> }' http://localhost:7878/update