diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
new file mode 100644
index 0000000..e69de29
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
new file mode 100644
index 0000000..e4abdb9
--- /dev/null
+++ b/.github/workflows/rust.yml
@@ -0,0 +1,23 @@
+name: Ruby
+
+on:
+  push:
+    branches: ['main']
+  pull_request:
+    branches: ['main']
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./expression-ruby
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build
+        run: rake compile
+      - name: Run tests
+        run: rake spec