config/users.nix


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{
  lib,
  pkgs,
  ...
}:
let
  remoteBuildingUsers = {
    hermes = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGstvYymapGvkjvKbFqkMZtE9ft9uEM13n8q798HtOT+ root@hermes";
    kerberos = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEgohiYF2Dsaq6ImGaslnKJMwpiVtwAaM9cm1tpSRr7t root@kerberos";
  };
in
{
  personal.user.enable = true;
  users.users = builtins.mapAttrs (_: key: {
    isNormalUser = true;
    shell = pkgs.busybox-sandbox-shell;
    openssh.authorizedKeys.keys = [ key ];
    homeMode = "700";
  }) remoteBuildingUsers;

  services.openssh.extraConfig = lib.concatLines (
    lib.mapAttrsToList (name: _: ''
      Match user ${name}
        PermitTTY yes
    '') remoteBuildingUsers
  );

  # broken (doesn't do anything)
  system.userActivationScripts.remoteBuildingSetup = ''
    if [[ $(whoami) = @(${builtins.concatStringsSep "|" (builtins.attrNames remoteBuildingUsers)}) ]]
    then
      mkdir --parents --mode=700 nixos-configuration
      git init --bare nixos-configuration
    fi
  '';
}