RCS is really the only thing I truly am annoyed by with rooted devices. If GrapheneOS can build something open that works we should be able to rip it apart and get it to work without passing play integrity.
RCS already works on GrapheneOS via Google Messages using sandboxed Google Play. We have an ICC authentication toggle for granting the required access to Google Play services. We want to provide our own implementation within our Messaging app to replace Google Messages and then we want to provide an alternate backend not depending on sandboxed Google Play, at least for carriers with their own implementation.
right, but I haven't used a phone with out magisk or something like it since... 2009? And you guys hate rooting; so...