Sourceforge used to be a goto site for open source projects, had several there myself, but the boat has sailed on that. Anyway, sourceforge is technically obsolete even if they change their business practices (I'll wait and see on that one).
I would take a close look at running a Travis build on the github source mirror. I think the Windows KiCad builds in a Windows VM, I don't have much experience with that. Otherwise Travis can be set to generate a daily build.