{ ... }:
let
  trustedFriendGroups = [
    "production-hydra-db"
  ];
in
{
  users.users = {
    # Raito: unused since a while, it was made for working on the production database of Hydra.
    ninjatrappeur = {
      isNormalUser = true;
      home = "/home/ninjatrappeur";
      shell = "/run/current-system/sw/bin/zsh";
      uid = 2000;
      extraGroups = trustedFriendGroups;
      expires = "2024-01-01";
      openssh.authorizedKeys.keyFiles = [ ./keys/ninjatrappeur.keys ];
    };
    linus = {
      isNormalUser = true;
      home = "/home/linus";
      shell = "/run/current-system/sw/bin/zsh";
      uid = 2001;
      # Raito: I allowed linus to be root to get some stuff done
      # on behalf of me.
      extraGroups = [ "wheel" ] ++ trustedFriendGroups;
      openssh.authorizedKeys.keyFiles = [ ./keys/linus.keys ];
    };
    niklas = {
      isNormalUser = true;
      home = "/home/niklas";
      shell = "/run/current-system/sw/bin/zsh";
      uid = 2002;
      extraGroups = trustedFriendGroups;
      openssh.authorizedKeys.keyFiles = [ ./keys/niklas.keys ];
    };
    # Raito: Temporary account for flokli, disable when he's done with it.
    flokli = {
      isNormalUser = true;
      home = "/home/flokli";
      shell = "/run/current-system/sw/bin/zsh";
      uid = 2003;
      expires = "2024-02-01";
      extraGroups = trustedFriendGroups;
      openssh.authorizedKeys.keys = [
        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPTVTXOutUZZjXLB0lUSgeKcSY/8mxKkC0ingGK1whD2 flokli"
      ];
    };
    # Raito: Temporary account for jade, for benchmarking stuff.
    jade = {
      isNormalUser = true;
      home = "/home/jade";
      shell = "/run/current-system/sw/bin/zsh";
      uid = 2004;
      expires = "2024-04-01";
      extraGroups = trustedFriendGroups;
      openssh.authorizedKeys.keys = [
        "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDNldAg4t13/i69TD786The+U3wbiNUdW2Kc9KNWvEhgpf4y4x4Sft0oYfkPw5cjX4H3APqfD+b7ItAG0GCbwHw6KMYPoVMNK08zBMJUqt1XExbqGeFLqBaeqDsmEAYXJRbjMTAorpOCtgQdoCKK/DvZ51zUWXxT8UBNHSl19Ryv5Ry5VVdbAE35rqs57DQ9+ma6htXnsBEmmnC+1Zv1FE956m/OpBTId50mor7nS2FguAtPZnDPpTd5zl9kZmJEuWCrmy6iinw5V4Uy1mLeZkQv+/FtozbyifCRCvps9nHpv4mBSU5ABLgnRRvXs+D41Jx7xloNADr1nNgpsNrYaTh hed-bot-ssh-tpm-rsa"
        "sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIKYljH8iPMrH00lOb3ETxRrZimdKzPPEdsJQ5D5ovtOwAAAACnNzaDpzc2hrZXk= ssh:sshkey"
        "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBO4idMfdJxDJuBNOid60d4I+qxj09RHt+YkCYV2eXt6tGrEXg+S8hTQusy/SqooiXUH9pt4tea2RuBPN9+UwrH0= type-a yubikey slot 9a"
        "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHGIBMfUypLctmorlRz9xIzXRgmtqDMxF5T5Fxy4JxNb root@tail-bot"
      ];
    };
  };
}