If I was in it for the really long haul I would try to strike an integration deal with gitlab, and position myself as part of the ecosystem with gitlab for the source, and sourceforge for the binaries / large assets, and (try to) make money with commercial developers purchasing more private space for their assets (say free tier is x gb, you can pay for much more)

Not sure it would work, but I think having a counterpart to gitlab for the binaries/assets and for the non-technical users in general would be nice