Yep, I’ve done some freelancing over the last few years. I like it, but it’s hard to do that and a full-time job at the same time. Obviously the issue is getting enough work when you’re not normally employed, and when you are normally employed, the issue is not getting too much work. Clients like stuff ASAP and telling them an MVP will take 3 months because you’ll only be working on it 8 hours/week doesn’t go over well. The clients I’ve had are understanding but they all eventually want me to quit my job and come work for them, either as FTE or still a freelancer.