Part of the fun with building tiny projects like this is they're really low stakes. I build them as an mvp in a matter of weeks/months, launch them fast, then get a feel for if I enjoy running them. If I don't, I axe them, or end up selling them - (which is also a fun process).

This means I only really have a couple of things on the go at once, but I can try out way more ideas in a short period of time.