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

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

  outputs =
    inputs:
    inputs.flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = import inputs.nixpkgs { inherit system; };

        cargoToml = fromTOML (builtins.readFile ./Cargo.toml);
        name = cargoToml.package.name;

        nativeBuildInputs = with pkgs; [
          m4
        ];
      in
      {
        packages.default = pkgs.rustPlatform.buildRustPackage {
          inherit name nativeBuildInputs;
          src = ./.;

          cargoLock.lockFile = ./Cargo.lock;
        };

        devShells.default = pkgs.mkShell {
          inherit nativeBuildInputs;

          packages = with pkgs; [
            rustc
            cargo
            clippy
            rustfmt
            rust-analyzer
          ];
        };
      }
    );
}