May be: I own a FrameWork laptop (bought the older generation new, because it is fast enough for me, but I want to support them). Also I self host a couple of web services myself (music streaming, file storage, RSS). I also live in a shared flat (although I could afford my own appartment) and take the bike to go everywhere in the city.

I dont know if that counts as solar punk. However, I think that many of the comments are very inspiring :D