I don't think there are many options to host sourcecode and binaries in a way that is safe against an adversary like the US, and especially in such a way that t

I don't think there are many options to host sourcecode and binaries in a way that is safe against an adversary like the US, and especially in such a way that technically illiterate users are protected. Because you'd have to assume that CAs are not off-limits either then.