nixos machine config

os/nixos/Readme.md

@@ -1,4 +1,27 @@
-# NixOS using Home Manager
+# NixOS setup
 
-Check up to date guide here: https://nix-community.github.io/home-manager/
+## Machine config
+
+```bash
+$ sudo cat /etc/nixos/configuration.nix
+{ config, pkgs, ... }:
+
+{
+  imports = [
+    /home/knarf/configs/os/nixos/machine/configuration.nix
+  ];
+}
+```
+
+This way I can version control my config by having an empty configurations.nix that just imports the one in the repo.
+
+After making changes simply run:
+
+```bash
+sudo nixos-rebuild switch
+```
+
+## home-manager
+
+[home-manager guide](https://nix-community.github.io/home-manager/)
 

os/nixos/machine/audio-video.nix

@@ -0,0 +1,59 @@
+{ config, pkgs, ... }:
+
+{
+  services.seatd.enable = true; # seatd is needed to run hyprland
+  programs.hyprland.enable = true;
+
+  # Enable OpenGL
+  hardware.opengl = {
+    enable = true;
+		driSupport = true;
+		driSupport32Bit = true;
+  };
+
+  # Load nvidia driver for Xorg and Wayland
+  services.xserver.videoDrivers = ["nvidia"];
+
+  hardware.nvidia = {
+    # Modesetting is required.
+    modesetting.enable = true;
+
+    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
+    # Enable this if you have graphical corruption issues or application crashes after waking
+    # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead 
+    # of just the bare essentials.
+    powerManagement.enable = false;
+
+    # Fine-grained power management. Turns off GPU when not in use.
+    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
+    powerManagement.finegrained = false;
+
+    # Use the NVidia open source kernel module (not to be confused with the
+    # independent third-party "nouveau" open source driver).
+    # Support is limited to the Turing and later architectures. Full list of 
+    # supported GPUs is at: 
+    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus 
+    # Only available from driver 515.43.04+
+    # Currently alpha-quality/buggy, so false is currently the recommended setting.
+    open = false;
+
+    # Enable the Nvidia settings menu,
+    # accessible via `nvidia-settings`.
+    nvidiaSettings = true;
+
+    # Optionally, you may need to select the appropriate driver version for your specific GPU.
+    package = config.boot.kernelPackages.nvidiaPackages.stable;
+  };
+
+	# Sound
+  sound.enable = false;
+  hardware.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+    #jack.enable = true;
+  };
+}

os/nixos/machine/configuration.nix

@@ -0,0 +1,91 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [
+		./hardware-configuration.nix
+		./steam.nix
+		./audio-video.nix
+		<home-manager/nixos>
+	];
+
+  # Bootloader
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  # Enable networking
+  networking.hostName = "nixos";
+  networking.interfaces.enp5s0.wakeOnLan.enable = true;
+  networking.networkmanager.enable = true;
+
+  # Time zone & locale
+  time.timeZone = "Europe/Oslo";
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  # Configure keymap in X11
+  services.xserver.xkb = {
+    layout = "no";
+    variant = "";
+  };
+
+  # Configure console keymap
+  console.keyMap = "no";
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.knarf = {
+    isNormalUser = true;
+    description = "Knarf";
+    extraGroups = [
+			"networkmanager"
+			"wheel"
+			"docker"
+			"audio"
+			"seat" # seatd group
+		];
+    packages = with pkgs; [];
+    shell = pkgs.zsh;
+  };
+
+  # System packages (allow unfree packages)
+  nixpkgs.config.allowUnfree = true;
+  environment.systemPackages = with pkgs; [
+    vim
+    wget
+    git
+    tmux
+    bash
+    home-manager
+    zsh
+    kitty
+    pciutils
+  ];
+
+  programs.zsh.enable = true;
+
+  # enable docker
+  virtualisation.docker.enable = true;
+
+  home-manager.users.knarf = { pkgs, ... }: {
+    # The state version is required and should stay at the version you
+    # originally installed.
+    home.stateVersion = "24.05";
+  };
+
+  # Some programs need SUID wrappers, can be configured further or are
+  # started in user sessions.
+  # programs.mtr.enable = true;
+  # programs.gnupg.agent = {
+  #   enable = true;
+  #   enableSSHSupport = true;
+  # };
+
+  # Enable the OpenSSH daemon.
+  services.openssh.enable = true;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "24.05"; # Did you read the comment?
+}

os/nixos/machine/hardware-configuration.nix

@@ -0,0 +1,41 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "vmd" "xhci_pci" "ahci" "nvme" "usbhid" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/d01192a5-534a-492e-a74c-097a15e44ae0";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/E0B6-14F4";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.docker0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp5s0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp6s0.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp7s0.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}

os/nixos/machine/steam.nix

@@ -0,0 +1,21 @@
+{ config, pkgs, ... }:
+
+{
+  environment.systemPackages = with pkgs; [
+		mangohud # overlay showing cpu / gpu load, etc
+		protonup
+		lutris
+  ];
+
+	programs.gamemode.enable = 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
+
+    gamescopeSession.enable = true;
+  };
+}