I'm working on an open source online coop 2d platform game called DDraceNetwork: https://ddnet.org/

A lot of keeping infrastructure running, code reviews for the active developers we have, community management, some development: https://ddnet.org/news/ddnet-year-2021-in-review/

The community is the main reason for me to keep it running. We only cover server costs, but no one takes any payment to work on DDNet.