Yeah we definitely have. Here's me and another dev opposing AB 1856 (would have criminalized open source in the name of age assurance): https://calmatters.digitaldemocracy.org/hearings/279266#t=10...

And here's like ~120 of us who showed up to oppose AB 2023 (the 3D printer spyware bill). It was incredible. https://calmatters.digitaldemocracy.org/hearings/279741#t=19...

I think the easiest way to get involved is to become an EFF member. They'll keep you up to date on all the censorship and surveillance bills. Then you can contact your legislator, sent letters to the CA legislature committees, or show up to the hearings in Sacramento.