rename nixos -> yarn

etcnixos/system-yarn.nix

@@ -0,0 +1,91 @@
+{
+  config,
+  pkgs,
+  lib,
+  username,
+  inputs,
+  ...
+}:
+{
+  imports = [
+    ./common.nix
+    ./hardware_desktop.nix
+    ./no-rgb.nix
+    ./vr.nix
+
+    inputs.nixos-hardware.nixosModules.common-cpu-amd-pstate
+    inputs.nixos-hardware.nixosModules.common-cpu-amd-zenpower
+  ];
+
+  boot = {
+    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;
+    };
+
+    autoLogin = {
+      enable = true;
+      user = username;
+    };
+  };
+
+  # 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"
+  #   };
+  # };
+
+  programs.steam = {
+    remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
+  };
+
+  # LACT (Linux AMDGPU Configuration Tool): https://github.com/ilya-zlobintsev/LACT
+  environment.systemPackages = with pkgs; [
+    lact
+  ];
+  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
+      '';
+  };
+}