{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.11";

  inputs.nixpkgs-glslls.url = "github:felschr/nixpkgs/glsl-language-server";

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

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

  inputs.home-manager = {
    url = "github:nix-community/home-manager/release-22.11";
    inputs.nixpkgs.follows = "nixpkgs";
    inputs.utils.follows = "flake-utils";
  };

  inputs.nur.url = "github:nix-community/NUR/master";

  inputs.agenix = {
    url = "github:ryantm/agenix";
    inputs.nixpkgs.follows = "nixpkgs";
  };

  inputs.deploy-rs = {
    url = "github:serokell/deploy-rs";
    inputs.nixpkgs.follows = "nixpkgs";
    inputs.utils.follows = "flake-utils";
  };

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

  inputs.nvim-kitty-navigator = {
    url = "github:hermitmaster/nvim-kitty-navigator";
    flake = false;
  };

  outputs = { self, nixpkgs, nixos-hardware, flake-utils, home-manager, nur
    , agenix, deploy-rs, pre-commit-hooks, nvim-kitty-navigator, nixpkgs-glslls
    }@inputs:
    let
      overlays = {
        neovim = final: prev:
          let
            buildVimPlugin = name: input:
              prev.pkgs.vimUtils.buildVimPluginFrom2Nix {
                pname = name;
                version = input.rev;
                versionSuffix = "-git";
                src = input;
              };
          in {
            vimPlugins = prev.vimPlugins // {
              nvim-kitty-navigator =
                buildVimPlugin "nvim-kitty-navigator" nvim-kitty-navigator;
            };
          };
        deconz = final: prev: {
          deconz = final.qt5.callPackage ./pkgs/deconz { };
        };
        glslls = final: prev: {
          inherit (nixpkgs-glslls.legacyPackages.${final.system})
            glsl-language-server;
        };
      };
      nixosModules = {
        flakeDefaults = import ./modules/flakeDefaults.nix;
        systemdNotify = import ./modules/systemdNotify.nix;
      };
      homeManagerModules = { git = import ./home/modules/git.nix; };
      systemDefaults = {
        modules = [ nixosModules.flakeDefaults agenix.nixosModule ];
        overlays = with overlays; [ nur.overlay neovim deconz glslls ];
      };
      lib = rec {
        createSystem = hostName:
          { hardwareConfig, config }:
          ({ pkgs, lib, ... }: {
            networking.hostName = hostName;

            nixpkgs.overlays = systemDefaults.overlays;

            imports = systemDefaults.modules ++ [
              hardwareConfig
              config
              {
                # make arguments available to modules
                _module.args = { inherit self inputs; };
              }
            ];

            environment.systemPackages = with pkgs;
              [ agenix.defaultPackage.x86_64-linux ];
          });
        createUser' = import ./lib/createUser.nix;
        createUser = name: args:
          ({ pkgs, ... }@args2:
            (createUser' name args) ({ inherit home-manager; } // args2));
        createMediaGroup = { ... }: { users.groups.media = { gid = 600; }; };
      };
    in rec {

      inherit lib overlays nixosModules homeManagerModules;

      nixosConfigurations.home-pc = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          nixpkgs.nixosModules.notDetected
          nixos-hardware.nixosModules.common-pc
          nixos-hardware.nixosModules.common-pc-ssd
          nixos-hardware.nixosModules.common-cpu-amd
          nixos-hardware.nixosModules.common-gpu-amd
          (lib.createSystem "home-pc" {
            hardwareConfig = ./hardware/home-pc.nix;
            config = ./home-pc.nix;
          })
          lib.createMediaGroup
          (lib.createUser "felschr" {
            user.extraGroups = [ "wheel" "audio" "disk" "media" ];
            modules = [ homeManagerModules.git ];
            config = ./home/felschr.nix;
          })
          ({ pkgs, ... }: {
            environment.systemPackages = with pkgs;
              [ deploy-rs.defaultPackage.x86_64-linux ];
          })
        ];
      };

      nixosConfigurations.pilot1 = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          nixpkgs.nixosModules.notDetected
          nixos-hardware.nixosModules.common-pc
          nixos-hardware.nixosModules.common-pc-ssd
          nixos-hardware.nixosModules.common-cpu-intel
          (lib.createSystem "pilot1" {
            hardwareConfig = ./hardware/pilot1.nix;
            config = ./work-pc.nix;
          })
          (lib.createUser "felschr" {
            user.extraGroups = [ "wheel" "audio" "disk" ];
            modules = [ homeManagerModules.git ];
            config = ./home/felschr-work.nix;
          })
        ];
      };

      nixosConfigurations.home-server = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          nixpkgs.nixosModules.notDetected
          nixos-hardware.nixosModules.common-pc
          nixos-hardware.nixosModules.common-pc-ssd
          nixos-hardware.nixosModules.common-cpu-intel-kaby-lake
          (lib.createSystem "home-server" {
            hardwareConfig = ./hardware/lattepanda.nix;
            config = ./home-server.nix;
          })
          lib.createMediaGroup
          (lib.createUser "felschr" {
            user = {
              extraGroups = [ "wheel" "audio" "disk" "media" ];
              openssh.authorizedKeys.keys = [
                "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIP751vlJUnB7Pfe1KNr6weWkx/rkP4J3lTYpAekHdOgV"
              ];
            };
            modules = [ homeManagerModules.git ];
            config = ./home/felschr-server.nix;
          })
        ];
      };

      deploy.nodes.home-server = {
        hostname = "192.168.1.102";
        profiles.system = {
          user = "felschr";
          path = deploy-rs.lib.x86_64-linux.activate.nixos
            self.nixosConfigurations.home-server;
        };
      };

    } // flake-utils.lib.eachSystem [ "x86_64-linux" "aarch64-linux" ] (system:
      let
        pkgs = import nixpkgs {
          inherit system;
          config.allowUnfree = true;
        };
      in rec {
        formatter = pkgs.nixfmt;

        packages = { deconz = pkgs.qt5.callPackage ./pkgs/deconz { }; };

        apps = { deconz = flake-utils.lib.mkApp { drv = packages.deconz; }; };

        devShells.default =
          pkgs.mkShell { inherit (checks.pre-commit) shellHook; };

        checks = deploy-rs.lib.${system}.deployChecks self.deploy // {
          pre-commit = pre-commit-hooks.lib.${system}.run {
            src = ./.;
            hooks = {
              nixfmt.enable = true;
              shellcheck.enable = true;
            };
          };
        };
      });
}