+ Setting API_ON_SAME_PORT simulates having both the API and UI on the same server
+ port. That's a rare setup but something https://nominatim.openstreetmap.org/ does
+ so worth testing.
+
+ To run a single test file only
+
+ ```
+ yarn run rollup -c && yarn run mocha test/details.js
+ ```
+
+* Run syntax linter (configuration in `.eslint.json`)