Don't hesitate to pick an issue to contribute, and / or ask for help for how to proceed on the Gitter channel.
Setting the project up
Clone down the Coursier Repo
Change directory in the Coursier root and issue a
git submodule update --initwhich will clone down the necessary submodules for the project.
DEVELOP.mdat the root of the sources lists useful command when developing on coursier (how to compile modules, run tests, run the CLI from sources, build a CLI launcher from sources, …)