(OP can ignore this comment)
I'm a bit upset that GrapheneOS does not follow OpenBSD: ignore any person hating it, ignore anyone who wants to interferes with project personnel and donations like usa is doing on Viet Nam like they are speaking for the Vietnamese, and don't care if the feature works "for you" or not, just going on code improvements & maximally free code. And do whatever Micay want to do. Accept donations from whatever company. There's so much dramas. But they already achieved over-detailed documentations. Focusing on unprivileged google play is the true path, since the demand on google play is much larger and other "private" apps repos are expected to work on the "privacy" people's phone.
Maybe because GrapheneOS haven't made any world-significant project that every companies depend on so that companies have to put so much money on the project.