I get excited every time I learn about another E2EE messaging app where the server can be self-hosted. But as I understand it, the server that triggers push notifications for any android app must be hard-coded into the app's binary. Are there any good architectural workarounds for this? I've read a little bit about VAPID[1] but I don't know if it is actually a viable approach and I don't think I've ever seen it promoted in an E2EE messaging app with a self-hosted server.
[1] (Disclosure: the AI gave me this link) https://unifiedpush.org/news/20250131_push_for_decentralized...