{ pkgs, depot, lib, rebuilder, ... }:
let 
inherit (lib) mkDefault;
in
{
  hardware.enableRedistributableFirmware = true;

  nix = {
    nixPath = [ "depot=/home/lukegb/depot/" "nixpkgs=/home/lukegb/depot/third_party/nixpkgs/" ];
    trustedUsers = [ "root" "@wheel" ];
    binaryCaches = lib.mkForce [ "https://hydra.nixos.org/" "s3://lukegb-nix-cache?endpoint=storage.googleapis.com&trusted=1" ];
    trustedBinaryCaches = lib.mkForce [ "https://hydra.nixos.org/" "s3://lukegb-nix-cache?endpoint=storage.googleapis.com&trusted=1" ];
  };
  nixpkgs.config = { allowUnfree = true; };

  i18n.defaultLocale = "en_GB.UTF-8";
  console.keyMap = "us";

  time.timeZone = mkDefault "Etc/UTC";

  environment.systemPackages = with pkgs; [
    vim mercurial rxvt_unicode.terminfo rebuilder
  ];

  networking.firewall = {
    allowPing = true;
  };

  users.mutableUsers = false;
  users.users = let secrets = depot.ops.secrets; in {
    root.hashedPassword = secrets.passwordHashes.root;
    lukegb = {
      isNormalUser = true;
      uid = 1000;
      extraGroups = [ "wheel" ];
      hashedPassword = secrets.passwordHashes.lukegb;
    };
  };

  programs.mtr.enable = true;
  services.openssh.enable = true;

  boot = {
    kernelModules = [ "tcp_bbr" ];
    kernel.sysctl."net.ipv4.tcp_congestion_control" = "bbr";
    kernel.sysctl."net.core.default_qdisc" = "fq_codel";
  };
}