{
  description = "System config";

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

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

    flake-utils.url = "github:numtide/flake-utils";

    flake-parts = {
      url = "github:hercules-ci/flake-parts";
    };

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

    pre-commit-hooks = {
      url = "github:cachix/pre-commit-hooks.nix";
      inputs.flake-utils.follows = "flake-utils";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    nixinate = {
      url = "github:MatthewCroughan/nixinate";
      inputs.nixpkgs.follows = "nixpkgs";
    };

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

    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-utils.follows = "flake-utils";
    };

    microvm = {
      url = "github:astro/microvm.nix";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-utils.follows = "flake-utils";
    };

    sops = {
      url = "github:Mic92/sops-nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    emacs-overlay = {
      url = "github:nix-community/emacs-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-utils.follows = "flake-utils";
    };

    nil = {
      url = "github:oxalica/nil";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-utils.follows = "flake-utils";
      inputs.rust-overlay.follows = "rust-overlay";
    };

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

    nomachine = {
      url = "github:rytec-nl/nixpkgs/submit/add-nomachine-server";
    };

    ha-now-playing = {
      url = "git+https://git.datarift.nl/erwin/ha-now-playing.git?ref=main";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-utils.follows = "flake-utils";
      inputs.rust-overlay.follows = "rust-overlay";
      inputs.pre-commit-hooks.follows = "pre-commit-hooks";
    };

    pamedia = {
      url = "git+https://git.datarift.nl/erwin/pamedia-rs.git?ref=main";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-utils.follows = "flake-utils";
      inputs.naersk.follows = "naersk";
    };

    sunshine = {
      url = "git+https://git@git.datarift.nl/erwin/sunshine.git?ref=main";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.flake-utils.follows = "flake-utils";
    };
  };

  outputs =
    { self
    , sops
    , ha-now-playing
    , pamedia
    , nixinate
    , flake-parts
    , ...
    } @ inputs:
      with inputs; let
        machines = import ./machines inputs;
        defSystem = system: baseConfig: deployConfig:
          nixpkgs.lib.nixosSystem {
            system = "${system}";
            modules = [
              { _module.args.inputs = inputs; }
              { _module.args.self-overlay = self.overlays.default; }

              ({ ... }: {
                imports =
                  builtins.attrValues self.nixosModules
                    ++ [
                    {
                      nix.nixPath = [ "nixpkgs=${nixpkgs}" ];
                      nixpkgs =
                        let
                          nomachine-pkgs = import nomachine {
                            inherit system;
                            config.allowUnfree = true;
                          };
                        in
                        {
                          overlays = [
                            self.overlays.default
                            ha-now-playing.overlays.${system}
                            pamedia.overlays.${system}
                            emacs-overlay.overlay
                            nil.overlays.default
                            (_final: _prev: {
                              nomachine = nomachine-pkgs.nomachine;
                            })
                          ] ++ nixpkgs.lib.optional (system == "aarch64-linux")
                            (_final: super: {
                              makeModulesClosure = x:
                                super.makeModulesClosure (x // { allowMissing = true; });
                            });

                          config = {
                            allowUnfree = true;
                          };
                        };
                    }

                    baseConfig
                    home-manager.nixosModules.home-manager
                    {
                      home-manager = {
                        useUserPackages = true;
                        useGlobalPkgs = true;
                      };
                    }
                  ];

                system.configurationRevision = nixpkgs.lib.mkIf (self ? rev) self.rev;
                nix.registry.nixpkgs.flake = nixpkgs;
              })
              sops.nixosModules.sops
              sunshine.nixosModules.sunshine
            ] ++ (nixpkgs.lib.optional (deployConfig != null) { _module.args.nixinate = deployConfig; })
            ;
          };
      in
      flake-parts.lib.mkFlake { inherit inputs; } {

        systems = [
          "x86_64-linux"
          "aarch64-linux"
        ];

        flake = {

          overlays.default = import ./overlays;

          nixosModules = builtins.listToAttrs (map
            (x: {
              name = x;
              value = import (./modules + "/${x}");
            })
            (builtins.attrNames (builtins.readDir ./modules)));

          nixosConfigurations = builtins.listToAttrs (map
            (machine: {
              name = machine;
              value = defSystem (machines.${machine}.system or "x86_64-linux")
                {
                  imports = [
                    machines.${machine}.config
                  ];
                }
                (machines.${machine}.deploy or null);
            })
            (builtins.attrNames machines));

          apps = nixinate.nixinate.x86_64-linux self;

        };

        perSystem = { self', pkgs, system, lib, ... }:
          {
            checks = {
              pre-commit-check = pre-commit-hooks.lib.${system}.run {
                src = ./.;
                hooks = {
                  nixpkgs-fmt.enable = true;
                  deadnix.enable = true;
                  statix.enable = true;
                  black.enable = true;
                  shellcheck = {
                    enable = true;
                    types_or = [ "executable" ];
                  };
                  shfmt.enable = true;
                };
              };

            };

            devShells.default = with pkgs;
              mkShell {
                inherit (self'.checks.pre-commit-check) shellHook;
                name = "dotfiles";
                packages = [
                  pkgs.sops
                  ssh-to-age
                  age
                  nodejs
                  nodePackages.typescript-language-server
                  nodePackages.yaml-language-server
                  nodePackages.vscode-css-languageserver-bin
                  nodePackages.prettier
                  multimarkdown
                  nix-diff
                  nix-prefetch
                  nix-prefetch-scripts
                  nix-prefetch-github
                  nix-prefetch-docker
                  nix-top
                  nix-tree
                  popsicle
                  terraform
                  terraform-ls
                  taplo
                  just

                  disko.packages.${system}.disko
                ];
              };

            devShells.install = with pkgs; mkShell {
              name = "install";
              packages = [
                disko.packages.${system}.disko
              ];
            };

            formatter = pkgs.nixpkgs-fmt;
          };
      };
}