I started up the Imaging club at my school. It was several years ago now so I don't remember all the details, but I don't think it was toooooo much work. I think we had to get some set number of signatures from students saying they'd be interested in joining, had to present it to the Student Government Association, find a faculty advisor willing to sign on, and write up by-laws. I think it was worth it; it was a good resume/CV booster, I got to network with the professor in my field of interest a bit more than I otherwise would have, and the club is still going strong today and I do talks for them over Zoom every semester 🙂