The #hacksoc channel on Libera Chat will be bridged to slack in much the same way as the current Freenode channel is.
#cs-york also has a channel on Libera Chat, with the same people as usually hang out there.
Libera Chat does not yet have a webchat. If you haven’t got an irc client, then we
recommend using The Lounge. This does not require any
special program. If you want an account, please contact us at
email@example.com, or poke the infrastructure