{
  description = "Willem's Nix configurations";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    darwin.url = "github:lnl7/nix-darwin";
    darwin.inputs.nixpkgs.follows = "nixpkgs";
    emacs-overlay.url = "github:nix-community/emacs-overlay";
    emacs-overlay.inputs.nixpkgs.follows = "nixpkgs";
    fenix.url = "github:nix-community/fenix";
    flake-parts.url = "github:hercules-ci/flake-parts";
    home-manager.url = "github:nix-community/home-manager";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";
    nixos-apple-silicon.url = "github:tpwrules/nixos-apple-silicon";
    nixos-apple-silicon.inputs.nixpkgs.follows = "nixpkgs";
    rycee-firefox-addons.url = "git+https://git.sr.ht/~rycee/nur-expressions?dir=pkgs/firefox-addons";
    pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
    pre-commit-hooks.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = inputs:
    inputs.flake-parts.lib.mkFlake {inherit inputs;} {
      imports = [
        ./flake-parts
      ];

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

      perSystem = {
        system,
        self',
        pkgs,
        ...
      }: {
        checks.pre-commit-check = inputs.pre-commit-hooks.lib.${system}.run {
          src = ./.;
          hooks = {
            alejandra.enable = true;
          };
        };

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

        formatter = pkgs.alejandra;
      };
    };
}