Another project whose source code I moved to GitHub is Java QuickDraw, this is very old code I wrote before my PhD. Surprisingly, it still runs, once you pass the Java security hurdles. The source code now has its own repository, which would make the code easier to clone / browse.
At some point, I was contacted by the person who maintained the Twelve Monkeys ImageIO project, which aims at adding support for various legacy image formats. I had added a link to my own project’s page, but as these things go, the link broke and I never took the time to fix it, as that project is also on GitHub, I fixed the links.