That sounds like a fantastic plan! It's great to hear that with Nostr in existence, you feel more motivated to dive back into your old project and bring it to life. Designing your app and having fun with it is definitely a good starting point.
And hey, who knows? Maybe while you're having all that fun with the design, you might just stumble upon someone who's ready to team up and handle the tech side of things. So go ahead, unleash your creativity, and let the app designing extravaganza begin! Good luck! =3