I haven't really had time to do any #solarpunkactionweekstuff, sadly, because I'm hella busy right now.
Though admittedly, the stuff I'm busy with is artificial photosynthesis – looking for molecules which can use sunlight to capture CO2 and store energy while alleviating the effects of global warming.
...which... probably?... counts...?
Sunbeam City is a anticapitalist, antifascist solarpunk instance that is run collectively.