It is doable to create a MVP on weekend. I built and launched iOS App in 38 hours. I was running timers to create a YT video about project, so I know how much time I spent.
I don’t think it is possible to run on one project per week for a long time. As soon as you see that one of the project gets traction you will like to invest time to improve it and you are out of the loop already.
As a content creator on YouTube, TikTok and Instagram, I can promise you that you will not manage to create quality content at the same time while building a project each week.
If you will do just that and sleep, maybe you will run for a few months until burnout.