rec {
  deadbeef = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIDhiGLc/whCY3lCmDiRlYnMJOLiO/gvcRj/sKVEFVAhQ pazpi@deadbeef";

  PP416 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILpr7Kd6xKLQiOPlkXw59C3tmNuk4hN5tEhZ7Po9FEPR dp@PP416";

  krzo = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILrVYJrU6Ys2o/QYfI6Es5yqVVyjUyDYj6Fglvz63ywP krzo@pazpi.top";

  # The key are found executing `ssh-keyscan <ip-address>`
  machines = {
    arr = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICjAFjbSGaeWnImPFBEQ/PeGz7hgpLhUYgZg5Hb/JJ42";
    metrics = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIFRY4bpw1gCJAWMtBTSm2/09gcniFkSyCKCKPyGHVbr";
  };

  infra-core = [
    deadbeef
    PP416
    krzo
  ];

  infra-machine = [
    machines.arr
    machines.metrics
  ];

}