Slack eliminating the irc gateway has made it completely useless via low bandwidth internet connections. It's awful, and seriously alienating when I'm off grid

Slack eliminating the irc gateway has made it completely useless via low bandwidth internet connections. It's awful, and seriously alienating when I'm off grid for extended periods with a weak cell signal capable of ~14KiB/s. I hate that nearly everyone has adopted this proprietary hosted garbage that gives zero fucks for users outside the meat of their target market.