diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 41301a8..239b633 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -27,6 +27,10 @@ jobs:
         run: npm ci
       - name: Run tests
         run: npm test
+
+      # TODO add coverage using
+      # <https://github.com/marketplace/actions/code-coverage-summary>
+      # once nyc works again
   check-build-files:
     runs-on: ubuntu-latest
     steps:
diff --git a/.gitignore b/.gitignore
index d23de80..620ccfb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /node_modules/
 /.nyc_output/
 /.npmrc
+/coverage/
diff --git a/.nycrc.yaml b/.nycrc.yaml
new file mode 100644
index 0000000..bf3766b
--- /dev/null
+++ b/.nycrc.yaml
@@ -0,0 +1,4 @@
+# coverage is currently non-functional, see <https://github.com/istanbuljs/nyc/issues/1287>
+reporter: [text, cobertura]
+include:
+  - "src/**"