{
  description = "A C library with a clean API";

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

  outputs = {
    self,
    nixpkgs,
  }: let
    # Support for multiple systems (Linux and macOS)
    supportedSystems = ["x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin"];
    forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
    pkgsFor = system: import nixpkgs {inherit system;};
  in {
    # This is the actual library package
    packages = forAllSystems (system: let
      pkgs = pkgsFor system;
    in {
      default = pkgs.stdenv.mkDerivation {
        pname = "my-c-api";
        version = "0.1.0";
        src = ./.;

        # Add dependencies here
        buildInputs = [];
        nativeBuildInputs = [pkgs.pkg-config];

        # Nix expects a standard 'make install' by default.
        # Ensure your Makefile handles $(DESTDIR)$(PREFIX) correctly.
        installFlags = ["PREFIX=$(out)"];
      };
    });

    # This provides 'nix develop' for you to work on the API itself
    devShells = forAllSystems (system: let
      pkgs = pkgsFor system;
    in {
      default = pkgs.mkShell {
        inputsFrom = [self.packages.${system}.default];
        packages = with pkgs; [gdb valgrind clang-tools];
      };
    });
  };
}