codETHS is a code club I founded for my school with the goal of improving the school with code. Some of our projects were requested by a department while others were our own ideas. We had weekly meetings to go over changes, make decisions, and plan. However, we did most of the work outside of those meetings.
Many of our projects are open source on GitHub. Also see: Kitcoin - ETHSBell - PE Board
We used GitHub for version control, issue tracking, and pull requests. We also collaborated remotely using VSCode live share.