{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nixpkgs-stable.url = "github:NixOS/nixpkgs/nixos-25.05";

    # The name "snowfall-lib" is required due to how Snowfall Lib processes your
    # flake's inputs.
    snowfall-lib = {
      url = "github:snowfallorg/lib";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    chaotic.url = "github:chaotic-cx/nyx/nyxpkgs-unstable";

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

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

    lanzaboote.url = "github:nix-community/lanzaboote/v0.4.2";

    nixos-hardware.url = "github:NixOS/nixos-hardware/master";

    sops-nix.url = "github:Mic92/sops-nix";

    steam-rom-manager = {
      url = "github:mjallen18/nix-steam-rom-manager";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.home-manager.follows = "home-manager";
    };

    cosmic.url = "github:lilyinstarlight/nixos-cosmic";

    nix-vscode-extensions.url = "github:nix-community/nix-vscode-extensions";

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

    crowdsec.url = "git+https://codeberg.org/kampka/nix-flake-crowdsec.git";

    nixai.url = "github:olafkfreund/nix-ai-help";

    disko = {
      # the fork is needed for partition attributes support
      # url = "github:nvmd/disko/gpt-attrs";
      url = "github:nix-community/disko";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    nixos-raspberrypi.url = "github:mjallen18/nixos-raspberrypi";

    jovian.url = "github:Jovian-Experiments/Jovian-NixOS";

    darwin.url = "github:LnL7/nix-darwin";

    nix-homebrew.url = "github:zhaofengli/nix-homebrew";

    homebrew-core = {
      url = "github:homebrew/homebrew-core";
      flake = false;
    };

    homebrew-cask = {
      url = "github:homebrew/homebrew-cask";
      flake = false;
    };

    nixos-apple-silicon.url = "github:nix-community/nixos-apple-silicon";

    pre-commit-hooks-nix.url = "github:cachix/pre-commit-hooks.nix";

    treefmt-nix = {
      url = "github:numtide/treefmt-nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };

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

    lsfg-vk = {
      url = "github:mjallen18/lsfg-vk-flake/main";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  # We will handle this in the next section.
  outputs =
    inputs:
    inputs.snowfall-lib.mkFlake {
      # You must provide our flake inputs to Snowfall Lib.
      inherit inputs;

      # The `src` must be the root of the flake. See configuration
      # in the next section for information on how you can move your
      # Nix files to a separate directory.
      src = ./.;

      # Add a module to a specific host.
      systems = {
        # common modules
        modules.nixos = with inputs; [
          authentik-nix.nixosModules.default
          chaotic.nixosModules.default
          crowdsec.nixosModules.crowdsec
          crowdsec.nixosModules.crowdsec-firewall-bouncer
          disko.nixosModules.disko
          impermanence.nixosModules.impermanence
          lanzaboote.nixosModules.lanzaboote
          sops-nix.nixosModules.sops
          home-manager.nixosModules.home-manager
        ];

        # common darwin modules
        modules.darwin = with inputs; [
          nix-homebrew.darwinModules.nix-homebrew
          home-manager.darwinModules.home-manager
        ];

        # Host config
        hosts = {
          # ######################################################
          #                    Desktop                           #
          # ######################################################
          desktop = {
            modules = with inputs; [
              nixos-hardware.nixosModules.common-cpu-amd
              nixos-hardware.nixosModules.common-cpu-amd-pstate
              nixos-hardware.nixosModules.common-cpu-amd-zenpower
              nixos-hardware.nixosModules.common-gpu-amd
              nixos-hardware.nixosModules.common-hidpi
              nixos-hardware.nixosModules.common-pc
              lsfg-vk.nixosModules.default
            ];
          };

          # ######################################################
          #                      NAS                             #
          # ######################################################
          nas = {
            modules = with inputs; [
              nixos-hardware.nixosModules.common-pc
              nixos-hardware.nixosModules.common-cpu-amd
              nixos-hardware.nixosModules.common-cpu-amd-pstate
              nixos-hardware.nixosModules.common-cpu-amd-zenpower
              nixos-hardware.nixosModules.common-hidpi
              home-manager.nixosModules.home-manager
            ];
            # overlays = with inputs; [ crowdsec.overlays.default ];
          };

          # ######################################################
          #                   Steamdeck                          #
          # ######################################################
          steamdeck = {
            modules = with inputs; [
              disko.nixosModules.disko
              jovian.nixosModules.jovian
              nixos-hardware.nixosModules.common-cpu-amd
              nixos-hardware.nixosModules.common-cpu-amd-pstate
              nixos-hardware.nixosModules.common-cpu-amd-zenpower
              nixos-hardware.nixosModules.common-gpu-amd
              nixos-hardware.nixosModules.common-hidpi
              nixos-hardware.nixosModules.common-pc
              lsfg-vk.nixosModules.default
            ];
          };

          # ######################################################
          #                      NUC                             #
          # ######################################################
          nuc = {
            modules = with inputs; [
              disko.nixosModules.disko
              nixos-hardware.nixosModules.common-cpu-amd
              nixos-hardware.nixosModules.common-cpu-amd-pstate
              nixos-hardware.nixosModules.common-cpu-amd-zenpower
              nixos-hardware.nixosModules.common-gpu-amd
              nixos-hardware.nixosModules.common-hidpi
              nixos-hardware.nixosModules.common-pc
            ];
          };

          # ######################################################
          #                      Pi4                             #
          # ######################################################
          pi4 = {
            modules = with inputs; [
              disko.nixosModules.disko
              nixos-raspberrypi.nixosModules.raspberry-pi-4.base
              nixos-raspberrypi.nixosModules.raspberry-pi-4.display-vc4
              nixos-raspberrypi.lib.inject-overlays
            ];
          };

          # ######################################################
          #                      Pi5                             #
          # ######################################################
          pi5 = {
            modules = with inputs; [
              disko.nixosModules.disko
              nixos-raspberrypi.nixosModules.raspberry-pi-5.base
              nixos-raspberrypi.nixosModules.raspberry-pi-5.display-vc4
              nixos-raspberrypi.nixosModules.raspberry-pi-5.bluetooth
              nixos-raspberrypi.lib.inject-overlays
            ];
          };

          # ######################################################
          #                      Mac                             #
          # ######################################################
          macbook-pro-nixos = {
            modules = with inputs; [
              nixos-apple-silicon.nixosModules.default
              lsfg-vk.nixosModules.default
            ];
          };
        };

        overlays = with inputs; [ nix-vscode-extensions.overlays.default ];

        homes = {
          modules = with inputs; [
            nix-index-database.homeModules.nix-index
            sops-nix.homeManagerModules.sops
          ];

          overlays = with inputs; [
            nix-vscode-extensions.overlays.default
          ];

          users = {
            # "matt@desktop" = {
            #   modules = with inputs; [
            #     sops-nix.homeManagerModules.sops
            #   ];
            # };
            "deck@steamdeck" = {
              modules = with inputs; [
                steam-rom-manager.homeManagerModules.default
              ];
            };
          };
        };
      };

      # Configure Snowfall Lib, all of these settings are optional.
      snowfall = {
        # Choose a namespace to use for your flake's packages, library,
        # and overlays.
        namespace = "mjallen";

        # Add flake metadata that can be processed by tools like Snowfall Frost.
        meta = {
          # A slug to use in documentation when displaying things like file paths.
          name = "mjallen";

          # A title to show for your flake, typically the name.
          title = "mjallen Flake";
        };
      };

      outputs-builder = channels: {
        formatter = inputs.treefmt-nix.lib.mkWrapper channels.nixpkgs ./treefmt.nix;
      };
    };
}