{
  description = "NixOS config";

  inputs = {
    nixpkgs = {
      url = "github:nixos/nixpkgs?ref=nixos-unstable";
    };
    neovim = {
      url = "github:kylekrein/neovim";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    hyprland.url = "github:hyprwm/Hyprland";
    stylix.url = "github:danth/stylix";
    nix-flatpak.url = "github:gmodena/nix-flatpak/?ref=latest";
    apple-silicon-support.url = "github:tpwrules/nixos-apple-silicon";

    #nur.url = "github:nix-community/NUR";
    sops-nix.url = "github:Mic92/sops-nix";

    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    disko = {
      url = "github:nix-community/disko";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nixos-facter-modules.url = "github:numtide/nixos-facter-modules";

    nix-gaming.url = "github:fufexan/nix-gaming";

    impermanence.url = "github:nix-community/impermanence";

    nix-darwin = {
      url = "github:LnL7/nix-darwin";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nix-on-droid = {
      url = "github:nix-community/nix-on-droid";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.home-manager.follows = "home-manager";
    };
  };

  outputs = {
    self,
    nixpkgs,
    ...
  } @ inputs: let
    #systems = ["aarch64-linux" "x86_64-linux" ];
    #forAllSystems = nixpkgs.lib.genAttrs systems;
    #pkgs = import nixpkgs {
    #   inherit system;
    #   config = {
    #      allowUnfree = true;
    #   };
    #};
    arm = "aarch64-linux";
    x86 = "x86_64-linux";

    first-nixos-install = "1729112485"; #stat -c %W /
  in {
    nixOnDroidConfigurations.default = inputs.nix-on-droid.lib.nixOnDroidConfiguration {
      pkgs = import nixpkgs {
        system = "aarch64-linux";
        overlays = [inputs.nix-on-droid.overlays.default];
      };
      modules = [./nixos/hosts/android];
      home-manager-path = inputs.home-manager.outPath;
      extraSpecialArgs = {
        inherit inputs;
        inherit first-nixos-install;
      };
    };
    darwinConfigurations = {
      "kylekrein-air" = inputs.nix-darwin.lib.darwinSystem {
        specialArgs = {
          inherit self;
          inherit inputs;
        };
        modules = [./nixos/hosts/kylekrein-air];
      };
    };
    nixosConfigurations = {
      "kylekrein-homepc" = nixpkgs.lib.nixosSystem {
        specialArgs = {
          hwconfig = {
            hostname = "kylekrein-homepc";
            isLaptop = false;
            system = x86;
            useImpermanence = true;
          };
          inherit first-nixos-install;
          inherit inputs;
        };

        system = x86;
        pkgs = import nixpkgs {
          system = x86;
          overlays = [
            inputs.hyprland.overlays.default
          ];
          config = {
            allowBroken = true;
            allowUnfree = true;
          };
        };
        modules = [
          (import ./nixos/modules/disko/impermanence-btrfs.nix {device = "/dev/nvme0n1";})
          ./nixos/configuration.nix
          #nix-flatpak.nixosModules.default
        ];
      };
      "kylekrein-mac" = nixpkgs.lib.nixosSystem {
        specialArgs = {
          hwconfig = {
            hostname = "kylekrein-mac";
            isLaptop = true;
            system = arm;
            useImpermanence = true;
          };
          inherit first-nixos-install;
          inherit inputs;
        };

        system = arm;
        pkgs = import nixpkgs {
          system = arm;
          overlays = [
            inputs.hyprland.overlays.default
            #(import ./nixos/macos/widevine.nix)
          ];
          config = {
            allowBroken = true;
            allowUnfree = true;
            allowUnsupportedSystem = true;
          };
        };
        modules = [
          ./nixos/configuration.nix
        ];
      };
    };
  };
}