I feel like we will end up with another program that abstracts Slack/Telegram/IRC into neat CLI interface and we will go full circle again. :)

Happy birth day IRC!

Until they recently shut it down (boooooo), it was possible to bridge a company Slack channel into IRC and vice versa.

My Discord <-> IRC <-> Slack <-> Matrix bridge with Matterbridge [0] still works as of today, I didn't notice anything being shut down.