nix/system/configuration.nix

{ config, pkgs, ... }:

{

  imports = [
    # where are we ?
    #./wollomi.nix
    ./adrift.nix
    # ./quiver.nix

    # home manager should exist for users
    <home-manager/nixos>
    
    ./cachix.nix

    # declarative cachix
    (import (builtins.fetchTarball "https://github.com/jonascarpay/declarative-cachix/archive/master.tar.gz"))

  ];
  
  cachix = [
    "nix-community"
  ];
  
  nix.extraOptions = ''
    experimental-features = nix-command flakes
    keep-outputs = true
    keep-derivations = true
  '';

  # environment.sessionVariables = rec {
  #   WLR_NO_HARDWARE_CURSORS = "1";
  #   GBM_BACKEND = "nvidia-drm";
  #   NVD_BACKEND = "direct";
  #   __GLX_VENDOR_LIBRARY_NAME = "nvidia";
  #   LIBVA_DRIVER_NAME = "nvidia";
  #   __GL_GSYNC_ALLOWED = "1";
  #   __GL_VRR_ALLOWED = "1";
  # };

  environment.pathsToLink = [ "/share/zsh" ];
  boot.loader.systemd-boot.enable = true;
  boot.loader.systemd-boot.configurationLimit = 5;
  boot.loader.systemd-boot.consoleMode = "max";
  boot.loader.timeout = 3;
  
  boot.kernelPackages = pkgs.linuxPackages_xanmod_latest;
  
  boot.tmpOnTmpfs = true;

  networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.

  time.timeZone = "Australia/Sydney";
  time.hardwareClockInLocalTime = true;

  # Select internationalisation properties.
  i18n.defaultLocale = "en_AU.UTF-8";
  i18n.supportedLocales = [ "en_AU.UTF-8/UTF-8" ];
  console = {
      font = "Lat2-Terminus16";
      useXkbConfig = true; # use xkbOptions in tty.
  };
  
  nixpkgs.config.allowUnfree = true;
  hardware.opengl.enable = true;
  hardware.opengl.driSupport32Bit = true;

  #input stuff
  services.xserver.xkbOptions = "caps:escape";
  services.xserver.enable = true;
  services.xserver.layout = "us";
  services.xserver.libinput.enable = true;
  # kde time
  services.xserver.desktopManager.plasma5.enable = true;
  services.xserver.displayManager.lightdm.enable = false; # gets installed by default..
  services.xserver.displayManager.sddm = {
    enable = true;
    theme = "${(pkgs.fetchFromGitHub {
      owner = "EricKotato";
      repo = "sddm-slice";
      rev = "763b8f4e01c00c1f8590fc7a103e14f6e8449443";
      sha256 = "sha256-UW53ZdKb3RSrrcZ9GxZsJyjzS/uKR8lkaLLyi+2o27U=";
    })}";
    autoNumlock = true;
    settings = {
      General = {
        InputMethod = "";
      };
    };
  };
  services.xserver.desktopManager.plasma5.runUsingSystemd = true;
  programs.dconf.enable = true;

  xdg.autostart.enable = true;

  services.resolved = {
    enable = true;
    fallbackDns = [ "103.1.206.179" "168.138.8.38" "168.138.12.137" ];
    dnssec = "false";
  };
  

  # Enable sound.
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    # jack.enable = true;
  };

  # gtk compatibility
  qt.enable = true;
  qt.platformTheme = "kde";

  programs.zsh.enable = true;
  users.defaultUserShell = pkgs.zsh;
  
  services.tailscale.enable = true;

  environment.systemPackages = with pkgs; [
  
    rnix-lsp

    tailscale

    home-manager
    cachix

    helix
    ark
    
    curl
    
    git

    zsh

    nix-index
    comma

    # hackneyed
    
  ];

  nixpkgs.config.permittedInsecurePackages = [
    "imagemagick-6.9.12-68"
  ];
  networking.wg-quick.interfaces = {
    mullvad = {
      address = [ "10.66.224.186/32" ];
      dns = [ "10.64.0.1" ];
      privateKey = "WD0CNYazB8D19SJvwz/TdPqoWgWCGfTwA7mim16q7UM=";
      peers = [
        {
          publicKey = "kOpdNLq/ePrlc2wXGinRvbQWRhy755cZ4G4S7xwsKiw=";
          allowedIPs = [ "0.0.0.0/0" ];
          endpoint = "43.245.162.234:51820";
          persistentKeepalive = 25;
        }
      ];
    };
  };
  
  networking.firewall.enable = true;
  networking.firewall = {
    trustedInterfaces = [ "tailscale0" ];
    checkReversePath = "loose";
  };

  systemd.services.fixNetworkingForTailscale = {
    wantedBy = [ "multi-user.target" ];
    after = [ "network.target" "wg-quick-mullvad.service" ];
    description = "fix the damn routing table";
    serviceConfig = {
      Type = "oneshot";
      User = "root";
      ExecStart = ''${pkgs.bash}/bin/bash -c 'if [[ "$( ${pkgs.iproute2}/bin/ip rule | grep -e "62:.*52" | wc -l)" -eq 0 ]]; then ${pkgs.iproute2}/bin/ip rule add pref 62 table 52; fi'''';
      # ExecStop = ''${pkgs.iproute2}/bin/ip rule del pref 62 table 52'';
    };
  };

  

  system.stateVersion = "22.05"; # Did you read the comment?

}