There are plenty of small open source projects. It’s also good experience just figuring out how to build from source and make some changes even if you never open a PR.

Open source projects are a great resource. My understanding of good software development practices skyrocketed after contributing to a couple.

Same here and it’s worked well. I migrated my arr stack from another machine where it was in docker and just couldn’t see a reason to spend a bunch of time rebuilding it with LXCs.