I love this idea, I'm also building something like this. Good luck.

Our side project, sort of a mobile nostr browser, stores your keys securely and allows you to use them in any nostr web app.
Not a new idea, but I think it's time to give it a try.
https://nostr.build/av/c04775f84eebd65c8d473b68d44d4cf6216996d695208bfba62b98786056e191.mp4
I love this idea, I'm also building something like this. Good luck.
