diff --git a/.github/workflows/TestReleaser.yml b/.github/workflows/TestReleaser.yml
index 26db9e1..a4714aa 100644
--- a/.github/workflows/TestReleaser.yml
+++ b/.github/workflows/TestReleaser.yml
@@ -39,65 +39,27 @@ env:
 
 jobs:
 
-  test:
+
+  Image:
     runs-on: ubuntu-latest
+    env:
+      DOCKER_BUILDKIT: 1
     steps:
     - uses: actions/checkout@v2
 
-    - run: echo "Build some tool and generate some (versioned) artifacts" > artifact-$(date -u +"%Y-%m-%dT%H-%M-%SZ").txt
+    - name: Build container image
+      run: docker build -t ghcr.io/pytooling/releaser -f releaser/Dockerfile releaser
 
-    - name: Single
-      uses: ./releaser
+    - name: Push container image
+      uses: ./with-post-step
       with:
-        rm: true
-        token: ${{ secrets.GITHUB_TOKEN }}
-        files: artifact-*.txt
-
-    - name: List
-      uses: ./releaser
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-        files: |
-          artifact-*.txt
-          README.md
-
-    - name: Add artifacts/*.txt
-      run: |
-        mkdir artifacts
-        echo "Build some tool and generate some artifacts" > artifacts/artifact.txt
-        touch artifacts/empty_file.txt
-
-    - name: Single in subdir
-      uses: ./releaser
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-        files: artifacts/artifact.txt
-
-    - name: Add artifacts/*.md
-      run: |
-        echo "releaser hello" > artifacts/hello.md
-        echo "releaser world" > artifacts/world.md
-
-    - name: Directory wildcard
-      uses: ./releaser
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-        files: artifacts/*
-
-    - name: Add artifacts/subdir
-      run: |
-        mkdir artifacts/subdir
-        echo "Test recursive glob" > artifacts/subdir/deep_file.txt
-
-    - name: Directory wildcard (recursive)
-      uses: ./releaser
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-        files: artifacts/**
+        main: |
+          echo '${{ github.token }}' | docker login ghcr.io -u GitHub-Actions --password-stdin
+          docker push ghcr.io/pytooling/releaser
+        post: docker logout ghcr.io
 
 
-  test-composite:
-    needs: test
+  Composite:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
@@ -153,3 +115,66 @@ jobs:
       with:
         token: ${{ secrets.GITHUB_TOKEN }}
         files: artifacts/**
+
+
+  Test:
+    needs:
+      - Image
+      - Composite
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - run: echo "Build some tool and generate some (versioned) artifacts" > artifact-$(date -u +"%Y-%m-%dT%H-%M-%SZ").txt
+
+    - name: Single
+      uses: ./releaser
+      with:
+        rm: true
+        token: ${{ secrets.GITHUB_TOKEN }}
+        files: artifact-*.txt
+
+    - name: List
+      uses: ./releaser
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        use-gh-cli: true
+        files: |
+          artifact-*.txt
+          README.md
+
+    - name: Add artifacts/*.txt
+      run: |
+        mkdir artifacts
+        echo "Build some tool and generate some artifacts" > artifacts/artifact.txt
+        touch artifacts/empty_file.txt
+
+    - name: Single in subdir
+      uses: ./releaser
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        files: artifacts/artifact.txt
+
+    - name: Add artifacts/*.md
+      run: |
+        echo "releaser hello" > artifacts/hello.md
+        echo "releaser world" > artifacts/world.md
+
+    - name: Directory wildcard
+      uses: ./releaser
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        files: artifacts/*
+
+    - name: Add artifacts/subdir
+      run: |
+        mkdir artifacts/subdir
+        echo "Test recursive glob" > artifacts/subdir/deep_file.txt
+
+    - name: Directory wildcard (recursive)
+      uses: ./releaser
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        files: artifacts/**
+
+
diff --git a/releaser/Dockerfile b/releaser/Dockerfile
index 2290f49..728c35c 100644
--- a/releaser/Dockerfile
+++ b/releaser/Dockerfile
@@ -1,4 +1,12 @@
 FROM python:3.9-slim-bullseye
 COPY releaser.py /releaser.py
-RUN pip install PyGithub --progress-bar off
+RUN pip install PyGithub --progress-bar off \
+  && apt update -qq \
+  && apt install -y curl \
+  && curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | \
+     dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg \
+  && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | \
+     tee /etc/apt/sources.list.d/github-cli.list > /dev/null \
+  && apt update -qq \
+  && apt install -y gh
 CMD ["/releaser.py"]
diff --git a/releaser/README.md b/releaser/README.md
index 16d3711..4ff6d9a 100644
--- a/releaser/README.md
+++ b/releaser/README.md
@@ -26,7 +26,7 @@ However, those Actions were contributed by an employee in spare time, not offici
 Therefore, they were unmaintained before GitHub Actions was out of the private beta (see [actions/upload-release-asset#58](https://github.com/actions/upload-release-asset/issues/58)) and, a year later, archived.
 Those Actions are based on [actions/toolkit](https://github.com/actions/toolkit)'s hydrated version of octokit.js.
 
-From a practical point of view, [actions/github-script](https://github.com/actions/github-script) is the natural replacement to those Actions, since it allows to use a pre-authenticated octokit.js client along with the workflow run context.
+From a practical point of view, [actions/github-script](https://github.com/actions/github-script) is the natural replacement to those Actions, since it allows to use a pre-authenticated *octokit.js* client along with the workflow run context.
 Still, it requires writing plain JavaScript.
 
 Alternatively, there are non-official GitHub API libraries available in other languages (see [docs.github.com: rest/overview/libraries](https://docs.github.com/en/rest/overview/libraries)).
@@ -72,7 +72,7 @@ jobs:
     # Update tag and pre-release
     # - Update (force-push) tag to the commit that is used in the workflow.
     # - Upload artifacts defined by the user.
-    - uses: pyTooling/Actions/releaser@main
+    - uses: pyTooling/Actions/releaser@r0
       with:
         token: ${{ secrets.GITHUB_TOKEN }}
         files: |
@@ -117,7 +117,7 @@ Note:
 ### Composite Action
 
 The default implementation of **Releaser** is a Container Action.
-Therefore, in each run, the container image is built before starting the job.
+Therefore, a pre-built container image is pulled before starting the job.
 Alternatively, a Composite Action version is available: `uses: pyTooling/Actions/releaser/composite@main`.
 The Composite version installs the dependencies on the host (the runner environment), instead of using a container.
 Both implementations are functionally equivalent from **Releaser**'s point of view; however, the Composite Action allows users
diff --git a/releaser/action.yml b/releaser/action.yml
index 897e506..3ae3fba 100644
--- a/releaser/action.yml
+++ b/releaser/action.yml
@@ -46,4 +46,4 @@ inputs:
     default: false
 runs:
   using: 'docker'
-  image: 'Dockerfile'
+  image: 'docker://ghcr.io/pytooling/releaser'