I'm hoping someone creates a... think like Bluewallet, but for Nostr keys + signing requests + auto-sign setup.

How I'd think of it:

- A mobile app like Bluewallet (HD Account with an infinite number of child addresses).

- Each address has its own private/public keyset.

- Each address you can customize its profile meta-data in the app direction.

- Default relay list for each HD Account that gets pushed to all child addresses, while also having the ability to add/remove relays for each child address.

- Somewhere, there'd be a.. let's call it "Signing Link" where you'd add it in the app, and add it to other apps/sites you want to use so that whenever you want to publish/post something on those apps/sites, it'll send the sign request to that "Signing Link" and your Nostr signing app would catch that request and present to you to sign or not, then bounce it back to the sign-requester (this is for convenience / not having to usd plug your phone to your pc or other devices to sign).

- So the above is you signing, but I'd also love for "auto-sign for this app/site for the next YYY hours/days/months/years" so that I wouldn't have to open the app and sign every time I want to take action on Nostr for a site or app I want to use constantly.