Why would you go through the hassle of generating the private key offline just to immediately punch it into a sparrow hot wallet? Did you mean import your xpub?
You can build a nostr:npub17tyke9lkgxd98ruyeul6wt3pj3s9uxzgp9hxu5tsenjmweue6sqq4y3mgl for about $50.
Roll a seed using D++’s method described by nostr:npub1dpna3xwwddnhhzg9ycpvlcz2ze0jdwm2rf3eqd2lf9leaewtq7tqhw0ef2 here: cdn.nostr.build/assets/edu/ROL…
Import your seed into Seed Signer.
Connect to Sparrow.
Write down ~20 receive addresses.
Turn off Seed Signer.
Hide seed.
