* https://www.codetriage.com/ (mentioned in these comments)
I seem to recall yet another one, maybe with a name that invoked a traveling group of helpers who would jump into projects briefly to fix them up?
On a related note, it would be cool if there was a way to leave a hobo sign equivalent if you find a project that is well-run and easy to contribute to. If the build and tests Just Work, etc., we should praise that project in a way that 1) encourages helpers to pick it since they'll have a good experience, and 2) provides a good example for other projects to follow.