However with agentic coding, I think we're already seeing a pretty big resurgence in owning your own tools.
I've already created bespoke versions of many pieces of software to tweak them exactly to my liking (tabbed text editor, a graphical diff tool, screencaster, etc).
I did start working on a gin rummy game to replace an app but the apps free so less motivation (even though it’s probably selling my data).
I have dreams of making a few simple games but time is hard to find.
We have talked about the workout app idea as well, also a gardening app (like when to plant, when to re-seed based on your zone), and a recipe app (like what is in season that you should buy along with recipes for those in-season ingredients).
Gardening and recipe app would be fun. Might have to add those to the list!