Universe/worlds/maryland.nix

# Universe - The big bang to my universe
#
# Copyright (c) 2023-2024 Sameer Rahmani <lxsameer@gnu.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
{ nixpkgs,
  modules,
  system,
  inputs,
  pkgs,
  utils,
  hostBuilderConfig ? {
    inVM = false;
  },
  ...
}@params:


let
  this = { pkgs, config, lib, ... }: {
    time.timeZone = lib.mkDefault "Europe/Dublin";

    networking.hostName = "maryland";
    nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";

    boot.initrd.kernelModules = [ "amdgpu" ];
    boot.kernelParams = [ "radeon.cik_support=0" "amdgpu.cik_support=1"];
    boot.extraModprobeConfig = ''
      options snd_hda_intel index=1
    '';
    boot.blacklistedKernelModules = [ "mt7921e" ];
    hardware.enableRedistributableFirmware = true;
    hardware.cpu.amd.updateMicrocode = true;
    hardware.bluetooth.enable = true; # enables support for Bluetooth
    hardware.bluetooth.powerOnBoot = true; # powers up the default Bluetooth controller on boot
    hardware.bluetooth.settings = {
      General = {
        Enable = "Source,Sink,Media,Socket";
        Experimental = true;
      };
    };

    hardware.pulseaudio = {
      enable = true;
      package = pkgs.pulseaudioFull;
    };

    systemd.user.services.mpris-proxy = {
      description = "Mpris proxy";
      after = [ "network.target" "sound.target" ];
      wantedBy = [ "default.target" ];
      serviceConfig.ExecStart = "${pkgs.bluez}/bin/mpris-proxy";
    };

    services.blueman.enable = true;
    services.xserver.enable = true;
    services.xserver.autorun = lib.mkForce true;
    services.xserver.desktopManager.plasma5.enable = true;
    services.xserver.desktopManager.plasma5.runUsingSystemd = true;
    services.xserver.videoDrivers = [
      "modesetting"
      "amdgpu"
    ];

    services.xserver.displayManager = lib.mkForce {
        defaultSession = "plasma";
        sddm.enable = true;
    };

    services.dbus.enable = true;
    # I want to fully control my users via nix
    users.mutableUsers = false;
    networking.extraHosts = ''
      192.168.0.86 sameer
    '';

    services.printing.enable = true;
    services.avahi = {
      enable = true;
      nssmdns4 = true;
      openFirewall = true;
    };

    fileSystems."/".neededForBoot = true;
    services.gvfs.enable = true;

    networking.firewall = {
      enable = true;
      allowedTCPPorts = [ 8000 22 ];
    };

    security.pam = {
      services = {
        login.u2fAuth = true;
        sudo.u2fAuth = true;
      };
      yubico = {
        enable = true;
        debug = true;
        mode = "challenge-response";
        id = [ "24571716" "24571727" ];
      };
    };
  };

  mary = pkgs.callPackage ../users/mary/default.nix {};

  fg42 = inputs.fg42.packages.${system}.default;
  inVM = (utils.sanitizeBuilderConfig hostBuilderConfig).inVM;

  host = if inVM then "marylandVM" else "maryland";

in {

  installer = import ./installer.nix (params // {
    inherit host;
    diskModule = (modules.disk-installer
      host
      (if inVM then ./maryland/vm.disk.nix else ./maryland/disks.nix));
  });

  maryland = nixpkgs.lib.nixosSystem {
    inherit system;

    modules = (with modules; [
      "${nixpkgs}/nixos/modules/profiles/minimal.nix"
      "${nixpkgs}/nixos/modules/profiles/qemu-guest.nix"
      this
      (disk
        (if inVM then ./maryland/vm.disk.nix else ./maryland/disks.nix))
      bootable
      base
      mary.user
      desktop
      mary.style
      yubikey
      virtualisation.podman
      inputs.home-manager.nixosModules.home-manager
      {
        home-manager.useGlobalPkgs = true;
        home-manager.useUserPackages = true;

        home-manager.users.mary = mary.desktop;
        home-manager.extraSpecialArgs = {
          inherit inputs fg42;
        };
      }
    ]);

    # Pass these attributes to all the modules for this
    # host
    specialArgs = { inherit inputs hostBuilderConfig; };
  };
}