Flash Tails OS in a pen, then open your computer with the flashed pen, atualize the OS, then cut the internet connection of your computer, open electrum wallet and get your keys and adresses offline, boom done!

You have now a cold wallet

Check out nostr:npub17tyke9lkgxd98ruyeul6wt3pj3s9uxzgp9hxu5tsenjmweue6sqq4y3mgl

nostr:npub17tyke9lkgxd98ruyeul6wt3pj3s9uxzgp9hxu5tsenjmweue6sqq4y3mgl