diff --git a/.github/workflows/rake.yml b/.github/workflows/rake.yml
new file mode 100644
index 0000000..7709b7c
--- /dev/null
+++ b/.github/workflows/rake.yml
@@ -0,0 +1,90 @@
+name: rake
+
+on:
+  push:
+    branches: [ master, main ]
+    tags: [ v* ]
+  pull_request:
+
+env:
+  RNP_VERSION: master
+  DATABASE_URL: "mysql2://root@127.0.0.1/keyserver_test"
+  DEPS_BUILD_DIR: ${{ github.workspace }}/build
+  DEPS_PREFIX: ${{ github.workspace }}/opt
+  BOTAN_PREFIX: ${{ env.DEPS_PREFIX }}/botan
+  JSONC_PREFIX: ${{ env.DEPS_PREFIX }}/json-c
+  RNP_PREFIX: ${{ env.DEPS_PREFIX }}/rnp
+
+jobs:
+  rake:
+    name: Test on Ruby ${{ matrix.ruby }} ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    continue-on-error: ${{ matrix.experimental }}
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: [ '3.0', '2.7', '2.6', '2.5' ]
+        rnp: [ master ]
+        os: [ ubuntu-latest ]
+        experimental: [ false ]
+        include:
+          - ruby: '2.5'
+            rnp: v0.10.0
+            os: ubuntu-latest
+          - ruby: '2.5'
+            rnp: v0.11.0
+            os: ubuntu-latest
+          - ruby: '2.5'
+            rnp: v0.12.0
+            os: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+
+      - uses: shogo82148/actions-setup-mysql@v1
+        with:
+          mysql-version: '8.0'
+
+      - run: mysql -e 'CREATE DATABASE keyserver_test;'
+
+      - run: |
+          mkdir -p ${DEPS_PREFIX}
+
+      - working-directory: ci
+        run: |
+          ./install_botan.sh
+          ./install_json_c.sh
+          ./install_rnp.sh
+          # Be aware of differences between LD_LIBRARY_PATH and LD_RUN_PATH.
+          # - http://osr507doc.sco.com/en/tools/ccs_linkedit_dynamic_dirsearch.html
+          # - https://www.hpc.dtu.dk/?page_id=1180
+          #
+          # You should be careful when attempting to replicate following in your
+          # setup, because setting LD_LIBRARY_PATH is often a bad idea.  Nevertheless,
+          # it is okay here in Travis, and actually any attempt to change these led me
+          # to linking failures.  Side note: I am not a Linux expert, and you may be
+          # more lucky.
+          #
+          # I'd be happy to get rid of LD_LIBRARY_PATH eventually in some future
+          # pull request.
+          echo "LD_LIBRARY_PATH=${BOTAN_PREFIX}/lib:${JSONC_PREFIX}/lib:${RNP_PREFIX}/lib" >> $GITHUB_ENV
+          echo "PATH=${RNP_PREFIX}/bin:${PATH}" >> $GITHUB_ENV
+
+      - run: bundle exec rake
+
+  tests-passed:
+    needs: rake
+    runs-on: ubuntu-latest
+    steps:
+      - uses: peter-evans/repository-dispatch@v1
+        with:
+          token: ${{ secrets.METANORMA_CI_PAT_TOKEN || secrets.GITHUB_TOKEN }}
+          repository: ${{ github.repository }}
+          event-type: tests-passed
+          client-payload: '{"ref": "${{ github.ref }}", "sha": "${{ github.sha }}"}'