Thanks for your interest in contributing to Ol-Cesium.
Your contribution will be under our license as per GitHub's terms of service.
You will obviously start by forking the ol-cesium repository.
npm i
npm start
browse http://localhost:1234
npm run check
Run this before every commit. It will catch many problems quickly.
Please submit separate pull requests for separate issues. This allows each to be reviewed on its own merits.