@njha another reason why I still think UC Davis is a better school (shameless advertising). Also Davis has an active Linux user group!
...and the next Berkeley Linux User Group (#BerkeleyLUG) for both Cal students, Berkeley City College students, BHS students, +and+ non-students is happening this Sunday 2019-06-24 across the street from Edwards Stadium at Cafe Blue Door.
Check out https://berkeleylug.com/meetings/
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.