Agreed, the xda forum thing is a huge security smell. "Here, download this big binary from a random forum user and put it on a device you carry with you everywhere which is equipped with internet, camera, microphone, and GPS. You're welcome!"
replyThe GrapheneOS setup seems a lot better (though it has more limited support).
They reduce their need for involvement by being very opinionated about what the project offers.
replyMore projects should strive to establish a culture like GrapheneOS has.