[kongin]

What's a good IRC channel for cs/maths/physics?

After the freedone implosion I don't know where anything is any more.

[math-dev]

#maths or #math at irc.libera.chat is pretty active.

For CS / Physics, perhaps try asking there too, I usually hang out in #emacs and #vim. #emacs is super active, so if you ask there, you will get good pointers