{
  description = "flake for nixos-pulse";

  nixConfig = {
    extra-trusted-substituters = [
      "https://nix-community.cachix.org"
    ];
    extra-trusted-public-keys = [
      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
    ];
  };

  inputs = {
    nixpkgs-unstable = {
      url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    };
    nixos-unstable = {
      url = "github:NixOS/nixpkgs/nixos-unstable";
    };
    nixpkgs = {
      url = "github:NixOS/nixpkgs/nixos-23.05";
    };
    tuxedo-nixos = {
      url = "github:blitz/tuxedo-nixos";
    };
    home-manager = {
      url = "github:nix-community/home-manager/release-23.05";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    emacs-overlay = {
      url = "github:nix-community/emacs-overlay";
      inputs.nixpkgs-stable.follows = "nixpkgs";
      inputs.nixpkgs.follows = "nixpkgs-unstable";
    };
    disko = {
      url = "github:nix-community/disko";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nur = {
      url = "github:nix-community/NUR";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nix-wallpaper = {
      url = "github:lunik1/nix-wallpaper";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nix-index-database = {
      url = "github:Mic92/nix-index-database";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    plasma-manager = {
      url = "github:pjones/plasma-manager";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.home-manager.follows = "home-manager";
    };
    nix-ld = {
      url = "github:Mic92/nix-ld";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs =
    { self
    , nixpkgs
    , nixpkgs-unstable
    , nixos-unstable
    , home-manager
    , emacs-overlay
    , nur
    , nix-index-database
    , disko
    , ...
    } @ inputs:
    let
      system = "x86_64-linux";
      unstable-os = import nixos-unstable pkgs-args;
      unstable-os-overlay = _final: _prev: {
        unstable-os = unstable-os.pkgs;
      };
      unstable-pkgs = import nixpkgs-unstable pkgs-args;
      unstable-pkgs-overlay = _final: _prev: {
        unstable-pkgs = unstable-pkgs.pkgs;
      };
      overlays = [
        unstable-os-overlay
        unstable-pkgs-overlay
        emacs-overlay.overlay
      ];
      pkgs-args = {
        inherit system;
        inherit overlays;
        config = {
          allowUnfree = true;
          permittedInsecurePackages = [
            "electron-22.3.27"
            "electron-24.8.6"
          ];
        };
      };
      pkgs = import nixpkgs pkgs-args;
      hmModules = [
        nix-index-database.hmModules.nix-index
        nur.hmModules.nur
        inputs.plasma-manager.homeManagerModules.plasma-manager
      ];
      osModules = [
        disko.nixosModules.disko
        home-manager.nixosModules.home-manager
        nix-index-database.nixosModules.nix-index
        nur.nixosModules.nur
        inputs.nix-ld.nixosModules.nix-ld
        inputs.tuxedo-nixos.nixosModules.default
      ];
      args = {
        inherit self;
        inherit inputs;
        inherit system;
      };
    in
    {
      formatter = {
        ${system} = pkgs.nixpkgs-fmt;
      };
      diskoConfigurations = {
        nixos-pulse = import ./systems/nixos-pulse/disko.nix;
      };
      homeConfigurations = {
        "tester@tristan-desk-arch" = home-manager.lib.homeManagerConfiguration {
          inherit pkgs;

          modules =
            [
              ./users/tester.nix
              {
                _module = { inherit args; };
                targets.genericLinux.enable = true;
                programs = {
                  bash.enable = true;
                  zsh.enable = true;
                  home-manager.enable = true;
                };
              }
            ]
            ++ hmModules;
        };
        "tristand" = home-manager.lib.homeManagerConfiguration {
          inherit pkgs;

          modules =
            [
              ./users/tristand.nix
              {
                _module = { inherit args; };
                xsession.enable = true;
              }
            ]
            ++ hmModules;
        };
      };
      nixosConfigurations = {
        nixos-pulse = nixpkgs.lib.nixosSystem {
          modules =
            [
              ./systems/nixos-pulse
              {
                _module = { inherit args; };

                nix.registry.nixpkgs.flake = nixpkgs;
                nixpkgs.pkgs = pkgs;

                home-manager.sharedModules = hmModules;
                home-manager.extraSpecialArgs = args;
              }
            ]
            ++ osModules;
        };
        nixos-desk = nixpkgs.lib.nixosSystem {
          modules =
            [
              ./systems/nixos-desk
              {
                _module.args = args;
                nixpkgs.pkgs = pkgs;
                nix.registry.nixpkgs.flake = nixpkgs;
                home-manager.sharedModules = hmModules;
                home-manager.extraSpecialArgs = args;
              }
            ]
            ++ osModules;
        };
      };
    };
}