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+I use a Yubikey to store my ssh keys as a physical hardware key.
+
+## Retrieving the key to a new machine
+
+1. Plug in the yubikey and make sure yubikey manager is installed (temporarily install it with `nix-shell -p yubikey-manager`)
+2. Run `ssh-keygen -K` to generate the `id_ed25519_sk_rk.pub` and `id_ed25519_sk_rk` files in the current directory.
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