Congrats and thank you for sharing your project with the community โค๏ธ!
Just a personal opinion, I think all new projects should be hosted on alternatives git hosting sites (something like codeberg :p). Specially project which have alot of already very well implemented and popular alternatives.
Yes, this will reduce visibility and probably reduce interaction. But if you're on Lemmy you're probably already aware of this... But it will also provide the switch to a more privacy respecting and competition to more agressive invading monopoly companies.
Another positive thing I can think of is that if there is a big GitHub exodus and popular alternative who need to switch their database/user base to an alternative hoster will lose a bit of momentum and users may come across your project :).
Good luck and keep it up ๐๐ช