The Mautrix (Beeper) Telegram can not backfill messages anymore because nobody is working on the related MXCs. Cool, so it's useless to move old chats now, neat.

I removed the Telegram bridge; I am done with that. Migration to XMPP (MongooseIM) is basically a made decision. Really pissed.

Oh the alternative? "Beeper specific extensions". Do I need to say more?