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{ me, util, config, lib, pkgs, ... }:

{
  imports = [
    ./foundation

    ./nix.nix
    ./user.nix
    ./locale.nix
    ./tailscale.nix
    ./nix-ld.nix
    ./vim.nix
  ];

  boot.kernelPackages = pkgs.linuxPackages_latest;

  # fish enables this by default,
  # it makes every nixos rebuild very slow.
  documentation.man.generateCaches = false;

  users.motd = ''

/^  /^
\ ' ' 7   < Hi, I'm ${util.titleCase me.name}
/    \

  '';

  networking = {
    hostName = me.name;
    useDHCP = false;
    dhcpcd.enable = false;
    nameservers = [ "1.1.1.1" "1.0.0.1" ];

    nftables = {
      enable = true;
      flushRuleset = false;
    };

    firewall = {
      enable = true;
      allowedTCPPorts = [ 80 443 ];
    };
  };

  systemd.network = {
    enable = true;
    wait-online.anyInterface = true;
  };

  boot.kernel.sysctl = {
    # turn all of the ip forwarding on
    "net.ipv4.ip_forward" = lib.mkDefault 1;
    "net.ipv6.conf.all.forwarding" = lib.mkDefault 1;
    "net.ipv6.conf.default.forwarding" = lib.mkDefault 1;
  };

  services.envfs.enable = true;

  virtualisation = {
    oci-containers.backend = "docker";
    # we need these settings to allow our networks to be ipv6-enabled and
    # to make docker support nftables directly without any compat layers.
    # we also ignore the default bridge, because it's setup
    # is a lot more complicated...
    docker = {
      enable = true;
      autoPrune.enable = true;

      # required to support nftables natively.
      # see: https://docs.docker.com/engine/network/firewall-nftables
      package = pkgs.docker_29;
      extraPackages = [ pkgs.nftables ];

      daemon.settings = {
        "metrics-addr" = "${me.tailscale.ip}:9323";

        # ipv6 support
        "ipv6" = true;
        "ip6tables" = true;

        # nftables options
        "experimental" = true;
        "ip-forward" = true;
        "firewall-backend" = "nftables";
      };
    };
  };
  systemd.services.docker.path = [ pkgs.nftables ]; # add nft tool into docker

  services = {
    openssh = {
      enable = true;
      openFirewall = false;
      listenAddresses = [{ addr = me.tailscale.ip; port = 22; }];
      settings = {
        PasswordAuthentication = false;
        KbdInteractiveAuthentication = false;
        PermitRootLogin = "no";
      };
    };
    # sometimes needed for gnupg
    pcscd.enable = true;
  };

  foundation.tailnetServices = [
    "docker"
    "sshd"
  ];

  programs = {
    fish.enable = true;
    git.enable = true;
    tmux.enable = true;

    gnupg.agent = {
      enable = true;
      enableSSHSupport = true;
      pinentryPackage = pkgs.pinentry-curses;
    };
  };

  environment.systemPackages = (with pkgs; [
    file unzip jq dig htop glances wget
    gnupg pinentry-curses age agenix
    inetutils pciutils lshw inxi iw dmidecode
    tcpdump
    nftables wireguard-tools
    ffmpeg_7-headless

    ripgrep gnumake gdb gcc clang dtc
    go gopls delve go-task
    meson cmake
    nil direnv nixfmt-rfc-style
    dive compose2nix nix-prefetch-docker

    borgbackup
  ]);
}