I seem to enjoy building tools and hacking on personal projects that use those tools. I've built a few things in the past and some of those I actually try to maintain.
Most git projects that I have started and continue to maintain have moved to sourcehut: https://git.sr.ht/~jkenlooper/.
Some have moved to Codeberg: https://codeberg.org/jkenlooper
Most of the remaining active projects that I maintain in GitHub will eventually move. I no longer like the direction that GitHub is taking and prefer working with alternate git hosting websites like sourcehut and Codeberg. See the Give Up GitHub! article for more information on my reason to no longer host most of my projects on GitHub.
The major project I started in 2011 is Puzzle Massive. Version 2 of this project will stay on GitHub. It benefits from the visibility of being on GitHub and within the related GitHub topics. The rewrite of Puzzle Massive (version 3) is hosted at https://git.sr.ht/~jkenlooper/puzzle-massive.
I am starting a new version 3 of Puzzle Massive which will not be compatible with version 2. It is mostly a rewrite; and yes, rewrites are generally a bad idea. This one, however, is justified because I don't have to keep the previous version running or maintained.
The other projects that are directly jigsaw puzzle related (piecemaker, pixsaw) will stay on GitHub and are not being rewritten. They would also largely become invisible to potential contributors if they were not on GitHub at this time.