Here are the links to the documentation for these standards:

MLS - https://datatracker.ietf.org/wg/mls/documents/

Signal Protocol - https://www.signal.org/docs/

RCS - https://www.gsma.com/futurenetworks/rcs/universal-profile/ & https://www.gsma.com/futurenetworks/resources/rcs-up-2-4-uni/

@skullgiver

Accessing the keys from the server isn’t really a mystery or hidden. It’s technically possible for Apple to write software to query servers run by Google as well as any servers they created for themselves.

You don’t need implementation source code when you have open standards already.

WhatsApp actually used Signal’s development team to rollout the Signal protocol for them, but that app is still untrustworthy.

@skullgiver

What kind of openness are you hoping for? Google has built their solution with a bunch of already open pieces.

RCS + Signal protocol + MLS

https://www.androidauthority.com/google-messages-mls-3346918/

https://www.theverge.com/2023/7/20/23801536/google-messages-app-mls-support-announce

@Ghostalmedia

Is this the Geddit you meant?

https://kaangiray26.github.io/geddit-app/

@Predator
@przmk

There are all kinds of useful named things to learn about.

https://www.freecodecamp.org/news/snake-case-vs-camel-case-vs-pascal-case-vs-kebab-case-whats-the-difference/