What is a seedsigner?
How does it defer from other custody services?
Coldcard is shit. Ledger is shit. The best way to preserve your bitcoin is to first understand that “bitcoin wallets” are pretty unnecessary. While I have them, they serve a different role and are not the best solution for long term storage. Get a seedsigner. nostr:npub17tyke9lkgxd98ruyeul6wt3pj3s9uxzgp9hxu5tsenjmweue6sqq4y3mgl
Discussion
Seedsigner generates a seed then all data is wiped when the device loses power when you unplug it. Coldcard holds the seed in the device.