If you ask nicely they can increase the limit :). They have the limit to avoid abuse with people storing movies or whatnot (the limit is a recent addition)

Split the repository? It's not an unreasonable thing to do.

That said, FreeBSD's repo is 2ish GiB, and Linux is 3, LLVM is huge too. Not unreasonable to want to mirror those.

Good point! I wasn't aware of that.

Im going to remove my Github content and host it just for myself in my own Forgejo at home.

Pity that the world is falling apart in so many ways.