diff --git a/.gitea/workflows/test-build.yaml b/.gitea/workflows/test-build.yaml
new file mode 100644
index 0000000..f42d37b
--- /dev/null
+++ b/.gitea/workflows/test-build.yaml
@@ -0,0 +1,24 @@
+name: Test build
+on: workflow_dispatch
+
+jobs:
+  test:
+    runs-on: privileged-ubuntu-latest
+    steps:
+      - name: Clone doki-theme-gitea
+        uses: actions/checkout@v6
+        with:
+          repository: infrastructure/doki-theme-gitea
+          submodules: true
+      - name: Install dependencies
+        run: npm i
+      - name: Generate the themes
+        run: npm run generate
+      - name: Check the output
+        run: "[ $(ls -1 output/ | wc -l) != 0 ]"
+      - name: Copy the files
+        run: |-
+          (cd output && tar c .) | docker run -i \
+            -v /srv/gitea/gitea/gitea/public/assets/css:/target \
+            -w /target \
+            alpine:3.23 sh -c 'rm theme-doki*.css && tar x'