I have vibe coded 3 applications I never had time to code but always wanted.

Now it is different in a way where now I don’t have time to use those apps.

That’s a joke.

But I do believe it answers the question of “what to build?”. If you didn’t have time before LLM assisted coding you still don’t have time for it. You most likely know what is used and what not already by heart or by some measurements.