{ lib, ... }:
let
  mkKeys = k: { by-host = k; } // builtins.mapAttrs (_: lib.attrValues) k;
in

mkKeys {
  hd = {
    "solo" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEG+dd4m98aKEWfFa/7VZUlJNX0axvIlHVihT8w7RLyY";
    "c2" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIsoj2+esEebRwDV2PuNRt9Vz28oolOy+Hc2THwrWTAB";
    "roam" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEDlh8hY01wwmNtfa1eK3mVBIcytdh4n/kV05gP9z1Lc";
  };
  root = {
    "solo" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFsl8pLaGeCL3kacGWf8pzoLQr501ga/2OzvI2wWbTZJ";
    "c2" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJAZaswaiA+oQ9NviADYFf7BJQHNlmdxQuocIdoJmv3o";
    "roam" = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAID++uLcQOx/to3sEo5Nk97CenGf0Y6/dMsBbLouVTgIQ";
  };
}