Signal is a means for message encryption, and if every platform used it and then were mandated to interop, they'd have to figure out how to do the actual transfer, yes. RCS is basically this except nerfed and partially Google-owned which is shit.

[–] bram@lemm.ee 6 points 10 months ago (1 children)

This is where Matrix comes in. Fully open source and supports federation the way Lemmy does. (Even more effectively, actually.)

[–] OscarRobin@lemmy.world 2 points 10 months ago (1 children)

Matrix is more of a Discord alternative than a Whatsapp alternative though unless I'm mistaken?

[–] bram@lemm.ee 1 points 10 months ago

For Element, Matrix' flagship client, you are correct.

Anyone can build their own clients, however, and apps like FluffyChat & Syphon aim to mimick the look and feel of WhatsApp.