Dev here.

Honestly, most project came to fruition due to a need the developers themselves have.

Ask yourself the question if YOU need something that doesn't exist yet, or maybe exists but does not meet your requirements.

If you build something for yourself in the first place, and not because someone else wants it, it's a lot easier to stay motivated.

I've been seeing the mindset of "I need to build this hobby project because people want it" a lot lately. It's not necessarily a bad thing, but personally I think it'a better to build something you need and let others enjoy it as an added bonus. It's how a lot of great (and big!) things came to be.

This may be the crusty old fart in me talking, but the "hack around and build something" mindset is something I kind of miss nowadays 😅

In any chance, good luck on your endeavour! Feel free to post it in the subreddit, I'm sure a lot of people wouls be interested, myself included!