inputs:
{ nixpkgs, nixpkgs-unstable, nixpkgs-master, custom, rlib }:
{ config, pkgs, ... }:

{
  boot = {
    initrd.availableKernelModules = [
      "xhci_pci"
      "ahci"
      "usb_storage"
      "sr_mod"
      "rtsx_pci_sdmmc"
    ];
    initrd.kernelModules = [ ];
    kernelModules = [ "kvm-intel" ];
    extraModulePackages = [ ];
  };

  hardware.enableRedistributableFirmware = true;

  powerManagement.cpuFreqGovernor = pkgs.lib.mkDefault "powersave";

  fileSystems = {
    "/" = {
      device = "/dev/disk/by-uuid/bfdcd9bc-c5bb-424a-a110-20fab4b97f6d";
      fsType = "btrfs";
      options = [ "subvol=nixos" ];
    };

    "/btrfs" = {
      device = "/dev/disk/by-uuid/bfdcd9bc-c5bb-424a-a110-20fab4b97f6d";
      fsType = "btrfs";
      options = [ "subvol=/" ];
    };
  };

  swapDevices = [
    { device = "/dev/disk/by-uuid/9dca362e-43be-4f27-81bc-6bb7a244a7ae"; }
  ];
}