{ config, lib, pkgs, modulesPath, ... }:

{  

  nixpkgs.overlays = [
    (self: super: {
      system76-scheduler = pkgs.callPackage ./syspkgs/system76-scheduler.nix {};
      kwin-system76-scheduler-integration = pkgs.libsForQt5.callPackage ./syspkgs/kwin-system76-scheduler-integration.nix {};
    })
  ];

  imports =
    [ (modulesPath + "/installer/scan/not-detected.nix")
    ];

  boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbcore" "sd_mod" ];
  boot.initrd.kernelModules = [];
  boot.kernelModules = [ "kvm-amd" "i2c-dev" ];
  boot.extraModulePackages = [ ];
  boot.kernelParams = [ "mitigations=off" "acpi_enforce_resources=lax" "preempt=full" ];

  boot.loader.efi.canTouchEfiVariables = true;
  boot.plymouth.enable = true;
  
  boot.supportedFilesystems = [ "ntfs" ];

  security.tpm2.enable = true;

  networking.useDHCP = lib.mkDefault true;

  hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;

  services.minidlna = {
    enable = true;
    settings = {
      notify_interval = 120;
      friendly_name = "PC";
      media_dir = [ "A,/data/Music/Slsk" ];
    };
  };

  services.xserver.videoDrivers = [ "nvidia" ];
  hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.beta;
  hardware.nvidia.modesetting.enable = true;
  hardware.nvidia.powerManagement.enable = true;
  programs.xwayland.enable = true;
  
  systemd.services.no-rgb = {
    wantedBy = [ "multi-user.target" ];
    description = "rgb led turn-off-er";
    serviceConfig = {
      Type = "oneshot";
      ExecStart = ''${pkgs.openrgb}/bin/openrgb -d "HyperX Fury RGB" -m static -c 000000'';
    };
  };

  systemd.services."com.system76.Scheduler" = {
    wantedBy = [ "multi-user.target" ];
    description = "the system76 process scheduler";
    serviceConfig = {
      Type = "dbus";
      ExecStart = ''${pkgs.system76-scheduler}/bin/system76-scheduler daemon'';
      ExecReload = ''${pkgs.system76-scheduler}/bin/system76-scheduler daemon reload'';
      BusName = "com.system76.Scheduler";
    };
  };

  services.dbus.packages = [
    pkgs.kwin-system76-scheduler-integration
    pkgs.system76-scheduler
  ];

  systemd.packages = [
    pkgs.kwin-system76-scheduler-integration
    pkgs.system76-scheduler
  ];

  environment.etc = {
    "system76-scheduler".source = "${pkgs.system76-scheduler}/etc/system76-scheduler";
  };

  services.hardware.openrgb = {
    enable = true;
    motherboard = "amd";
  };
  
  hardware.ckb-next.enable = true;  
  
  environment.systemPackages = with pkgs; 
    [
      xdg-desktop-portal-kde
      ckb-next
      openrgb
      wl-clipboard
      wl-clipboard-x11
      xclip
      system76-scheduler
      kwin-system76-scheduler-integration
    ];

  networking.hostName = "quiver"; # Define your hostname.
  users.users.bolt = {
    isNormalUser = true;
    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
  };

  fileSystems."/" =
    { device = "/dev/disk/by-uuid/06f59431-d939-4b48-9d91-e23606dd3ce0";
      fsType = "ext4";
    };
    
  fileSystems."/home" =
    { device = "/dev/disk/by-uuid/f063e0c7-8590-4ed4-860c-5ae0c9b66898";
      fsType = "ext4";      
    };

  fileSystems."/boot" =
    { device = "/dev/disk/by-uuid/5008-1946";
      fsType = "vfat";
    };

  fileSystems."/data" = {
    device = "/dev/disk/by-uuid/39D4F78C658E8B56";
    fsType = "ntfs";
    options = [ "rw" "uid=1001" "gid=100" ];
  };
  
  swapDevices = [ {
    device = "/home/swapfile";
    size = 4096;
    }
  ];

  networking.firewall = {
    allowedUDPPorts = [ 1900 ];
    allowedTCPPorts = [ 8200 2234 ];
  };

}