diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 53aad6b..b738b19 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -17,10 +17,18 @@ jobs:
     
     steps:
     - uses: actions/checkout@v3
+      with:
+        submodules: 'true'
+    
     - uses: actions/setup-node@v4
       with:
         cache: 'npm'
     
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: '3.2'
+        bundler-cache: true
+    
     - name: Install dependencies
       timeout-minutes: 10
       run: npm ci
diff --git a/gems.rb b/gems.rb
new file mode 100644
index 0000000..26bbfbf
--- /dev/null
+++ b/gems.rb
@@ -0,0 +1,3 @@
+source "https://rubygems.org"
+
+gem "sus"