diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
new file mode 100644
index 0000000..90075d2
--- /dev/null
+++ b/.github/workflows/CI.yml
@@ -0,0 +1,35 @@
+name: CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+permissions:
+  contents: read
+
+jobs:
+  test-linux:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    strategy:
+      matrix:
+        ruby-version: ['3.0', '3.1', '3.2']
+
+    name: Linux, Ruby ${{ matrix.ruby-version }}
+    steps:
+    - name: Start Cassandra v4
+      run: |
+        docker run --name cassandra -d -p 9042:9042 cassandra:4
+    - uses: actions/checkout@v4
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby-version }}
+        bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+    - name: Prepare tests
+      run: bundle exec rake compile
+    - name: Run tests
+      run: bundle exec rake test
diff --git a/ext/ilios/extconf.rb b/ext/ilios/extconf.rb
index ba51fdb..67653bc 100644
--- a/ext/ilios/extconf.rb
+++ b/ext/ilios/extconf.rb
@@ -25,7 +25,7 @@ def configure_prefix
     end
   end
 
-  libuv_recipe = LibuvRecipe.new('libuv', Ilios::LIBUV_VERSION, make_command: 'make -j')
+  libuv_recipe = LibuvRecipe.new('libuv', Ilios::LIBUV_VERSION, make_command: 'make -j 3')
   libuv_recipe.files << {
     url: "https://github.com/libuv/libuv/archive/v#{Ilios::LIBUV_VERSION}.tar.gz"
   }
@@ -53,7 +53,7 @@ def configure_prefix
     end
   end
 
-  cassandra_recipe = CassandraRecipe.new('cpp-driver', Ilios::CASSANDRA_CPP_DRIVER_VERSION, make_command: 'make -j')
+  cassandra_recipe = CassandraRecipe.new('cpp-driver', Ilios::CASSANDRA_CPP_DRIVER_VERSION, make_command: 'make -j 3')
   cassandra_recipe.files << {
     url: "https://github.com/datastax/cpp-driver/archive/#{Ilios::CASSANDRA_CPP_DRIVER_VERSION}.tar.gz"
   }