dotfiles/etcnixos/system-nixos.nix

{
  config,
  pkgs,
  lib,
  username,
  system,
  cpu_arch,
  inputs,
  ...
}:
{
  imports = [
    ./common.nix
    ./hardware_desktop.nix

    inputs.nixos-hardware.nixosModules.common-cpu-amd-pstate
    inputs.nixos-hardware.nixosModules.common-cpu-amd-zenpower
    inputs.nixos-hardware.nixosModules.common-pc-ssd
  ];

  boot = {
    kernelPackages = pkgs.linuxPackages_6_10;
    supportedFilesystems = [ "zfs" ];

    kernelPatches = [
      #for making ALVR support better :)
      {
        name = "amdgpu-ignore-ctx-privileges";
        patch = pkgs.fetchpatch {
          name = "cap_sys_nice_begone.patch";
          url = "https://github.com/Frogging-Family/community-patches/raw/master/linux61-tkg/cap_sys_nice_begone.mypatch";
          sha256 = "Y3a0+x2xvHsfLax/uwycdJf3xLxvVfkfDVqjkxNaYEo=";
        };
      }
    ];
    kernelParams = [
      # allow overclocking (I actually underclock but lol)
      "amdgpu.ppfeaturemask=0xFFF7FFFF"
    ];

    kernelModules = [
      # kernel module for case fan control
      "nct6775"
    ];
  };

  services.xserver.enable = false;
  services.desktopManager.plasma6.enable = true;
  services.displayManager.sddm = {
    enable = true;
    wayland.enable = true;
  };

  services.openssh = {
    enable = true;
    ports = [ 22 ];
    settings = {
      PasswordAuthentication = true;
      AllowUsers = null; # Allows all users by default. Can be [ "user1" "user2" ]
      UseDns = true;
      X11Forwarding = false;
      PermitRootLogin = "no"; # "yes", "without-password", "prohibit-password", "forced-commands-only", "no"
    };
  };

  systemd.services.no-rgb =
    let
      no-rgb = pkgs.writeScriptBin "no-rgb" ''
        #!/bin/sh
        NUM_DEVICES=$(${pkgs.openrgb}/bin/openrgb --noautoconnect --list-devices | grep -E '^[0-9]+: ' | wc -l)

        for i in $(seq 0 $(($NUM_DEVICES - 1))); do
          ${pkgs.openrgb}/bin/openrgb --noautoconnect --device $i --mode direct --color 000000
        done
      '';
    in
    {
      description = "disable rgb";
      serviceConfig = {
        ExecStart = "${no-rgb}/bin/no-rgb";
        Type = "oneshot";
      };
      wantedBy = [ "multi-user.target" ];
    };

  services.hardware.openrgb.enable = true;
  services.udev.packages = [ pkgs.openrgb ];
  hardware.i2c.enable = true;

  #System packages
  environment.systemPackages = with pkgs; [
    openrgb-with-all-plugins
    lact
  ];

  programs.alvr = {
    enable = true;
    package = inputs.alvr.legacyPackages.${pkgs.system}.alvr;
    openFirewall = true;
  };

  programs.steam = {
    enable = true;
    remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
    # dedicatedServer.openFirewall = true; # Open ports in the firewall for Source Dedicated Server
    localNetworkGameTransfers.openFirewall = true; # Open ports in the firewall for Steam Local Network Game Transfers
  };

  # services.ollama = {
  #   enable = true;
  #   acceleration = "rocm";
  #   environmentVariables = {
  #     HCC_AMDGPU_TARGET = "gfx1031"; # used to be necessary, but doesn't seem to anymore
  #   };
  #   rocmOverrideGfx = "10.3.1";
  # };

  # services.open-webui = {
  #   enable = true;
  #   openFirewall = true;
  #   port = 8082;
  #   environment = {
  #     # Disable authentication
  #     WEBUI_AUTH = "False";
  #     PYDANTIC_SKIP_VALIDATING_CORE_SCHEMAS = "True";
  #   };
  # };

  systemd.packages = with pkgs; [ lact ];
  systemd.services.lactd.wantedBy = [ "multi-user.target" ];

  # control case fans with gpu temperature
  # I have case fans attached to my gpu for better cooling
  hardware.fancontrol = {
    enable = true;
    config =
      let
        select_hwmon = "hwmon/hwmon[[:print:]]*";
        gpu_path = "/sys/devices/pci0000:00/0000:00:03.1/0000:09:00.0/0000:0a:00.0/0000:0b:00.0/${select_hwmon}";
        mobo_path = "/sys/devices/platform/nct6775.656/${select_hwmon}";
        fan_speed = "${mobo_path}/pwm4";

      in
      ''
        INTERVAL=10
        FCTEMPS=${fan_speed}=${gpu_path}/temp1_input
        FCFANS= ${fan_speed}=${mobo_path}/fan4_input
        MINTEMP=${fan_speed}=40
        MAXTEMP=${fan_speed}=80
        MINSTART=${fan_speed}=150
        MINSTOP=${fan_speed}=0
        MAXPWM=${fan_speed}=255
      '';
  };
}