This is a fun article and approach.

Subscription apps often have to target a wide userbase. However, most users only need a small subset of the entire feature set, and would be better served by a tailored version. This means that vibecoded apps can get away with being much less complex (specific featureset, no login etc), while still being more useful.

I have also created tools with LLMs that are exactly tailored to what I need, and still much more polished than what I could do without LLMs. Will have to think about if there is anything else I can do this with.