This is pretty much just a reinvented Matrix protocol. Nearly identical.

To be fair, if i recall correctly, some of the folks who started up matrix protocol (and associated project) came from/and loved the IRC world (e.g. the rooms concept, etc.)...so it stands to reason that matrix and irc have at least some *conceptual* similarities, and hence other stuff that spins off from or leverages IRC may also appear similar to matrix.

	▲	someonebaggy 30 minutes ago \| parent [-]
		Matrix feels more like decentralised Slack/Discord. There are two different pits of success you can fall into with messaging: direct delivery to recipients online right now, or maintaining a shared history and syncing it to all recipients whenever they come online. IRC is the former, and almost everything else is the latter because the former doesn't work on phones which are the supermajority of all end devices.