Possible additional protocols?

[poVoq]

In tradition with the original thread, it might be cool to collect some additional protocols to add.

Note: please add a maintained Golang library for your suggestion, otherwise it is really pointless.

[poVoq]

Revolt might be cool. Golang library here.

Edit: Apparently renamed to Stoat.

[poVoq]

DeltaChat could be also useful. Libraries maybe this or this.

Edit: Kinda exists already: https://github.com/deltachat-bot/matterdelta

[mahdi1234]

Signal would be cool https://github.com/mautrix/signal in repo here https://github.com/mautrix/signal/tree/main/pkg/libsignalgo (not sure this qualifies as these are go bindings for official https://github.com/signalapp/libsignal )

[lil5]

Telegram needs an update for nested groups