.

README.md

@@ -5,3 +5,10 @@ draw persistent coloured paths, spawn agents from those strokes, erase locally,
 and export the scene as a 4K wallpaper.
 
 Check out the [agent logic](./src/pipelines/agents/agent.wgsl).
+
+## Testing
+
+- `npm test` runs the Vitest unit suite.
+- `npm run test:e2e` builds the production bundle and runs the Playwright Chromium
+  smoke test.
+- `npx playwright install chromium` installs the local browser binary when needed.