diff --git a/.github/workflows/cheatsheet.yml b/.github/workflows/cheatsheet.yml
new file mode 100644
index 0000000..9a7795c
--- /dev/null
+++ b/.github/workflows/cheatsheet.yml
@@ -0,0 +1,26 @@
+name: cheatsheet
+
+on: [push, pull_request, workflow_dispatch]
+
+permissions:
+  contents: write
+
+jobs:
+  cheatsheet:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: build docker image and generate cheatsheets
+        run: |
+          docker compose build
+          docker compose up
+
+      - name: commit cheatsheets
+        run: |
+          git config --global user.email "github-actions@github.com"
+          git config --global user.name "GitHub Actions"
+          git add cheatsheets
+          git commit -m "update cheatsheet"
+          git push
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..03cab60
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,9 @@
+FROM alpine:latest
+
+# install dependencies (curl, sudo, bash)
+RUN apk --no-cache add curl sudo bash
+
+# install zmk-viewer
+RUN curl -sL https://raw.githubusercontent.com/MrMarble/zmk-viewer/master/scripts/install.sh | sudo -E bash -
+
+WORKDIR /images
diff --git a/cheatsheets/cradio.png b/cheatsheets/cradio.png
new file mode 100644
index 0000000..5def9c3
Binary files /dev/null and b/cheatsheets/cradio.png differ
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..d0ef80b
--- /dev/null
+++ b/docker-compose.yml
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+version: '3'
+
+services:
+  cheatsheet-generator:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    volumes:
+      - ./config:/config
+      - ./cheatsheets:/images
+    command: sh -c "rm /images/*;
+                    zmk-viewer generate cradio -f /config/*.keymap --single;"