nixos-config/hosts/rainbow/default.nix

# 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,
  ...
}:
let
  btrfs_options = [
    "compress=zstd:3"
    "noatime"
    "x-systemd.device-timeout=0"
  ];
  btrfs_ssd = [
    "ssd"
    "discard=async"
  ];
in
{
  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];

  boot.initrd.availableKernelModules = [
    "xhci_pci"
    "ahci"
    "usb_storage"
    "usbhid"
    "sd_mod"
  ];
  boot.initrd.kernelModules = [ "i915" ];
  boot.kernelModules = [ "kvm-intel" ];
  boot.extraModulePackages = [ ];

  fileSystems."/" = {
    device = "/dev/disk/by-label/BTRFS_ROOT";
    fsType = "btrfs";
    options = [ "subvol=@nixos" ] ++ btrfs_options ++ btrfs_ssd;
  };

  boot.initrd.luks.devices = {
    "main" = {
      bypassWorkqueues = true;
      device = "/dev/disk/by-label/CRYPT_ROOT";
    };
  };

  fileSystems."/home" = {
    device = "/dev/disk/by-label/BTRFS_ROOT";
    fsType = "btrfs";
    options = [ "subvol=@home" ] ++ btrfs_options ++ btrfs_ssd;
  };

  boot.loader.efi.efiSysMountPoint = "/boot/efi";
  fileSystems."/boot/efi" = {
    device = "/dev/disk/by-uuid/DC3B-5753";
    fsType = "vfat";
  };

  fileSystems."/swap" = {
    device = "/dev/disk/by-label/BTRFS_ROOT";
    fsType = "btrfs";
    options = [ "subvol=@swap" ] ++ btrfs_ssd;
  };

  swapDevices = [
    {
      device = "/swap/swapfile";
      size = (1024 * 8);
    }
  ];

  # 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.enp1s0.useDHCP = lib.mkDefault true;

  powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;

  networking.hostName = "rainbow"; # Define your hostname.
}