Oddbean new post about login | logout So far the app worked nicely, but I would have to broadcast everything manually
What do you mean "broadcast everything manually"? When you create a note, it automatically gets broadcast to all your connected relays, at least the ones that permit writing. What exactly are you trying to do. I think there might be some confusion about how Nostr works.
I believe I meant to say something along this, for my notes to be picked up retroactively by my npub nostr:note1l8ddlg9ntht4f9t5et2zzhh5vtxhjgqj583fy6uymn94aml5t7zsat308v