{ ... }:
{
  users.users.imnyang.openssh.authorizedKeys.keys = [
    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOHP3Z+AYrRh9f8TYyqChKfeyNm3lOe0F75AwRHTTaxD imnyang@mizuki"
  ];
}