Author decided to move SteamCAD (and SteamCAD2) from GitHub[0,1] to SourceForge[2,3].
[0] https://github.com/oskardolch/SteamCAD
[1] https://github.com/oskardolch/SteamCAD2
[0] https://github.com/oskardolch/SteamCAD
[1] https://github.com/oskardolch/SteamCAD2
As for me, SF now is good place for storing (and archiving) personal projects, despite its weird past.
Also, OSDN gone[0]; GitLab is limited in free plan; Codeberg, Repo.or.cz and other are in the wild.