{
  description = "Image Processor C API";

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

  outputs = {
    self,
    nixpkgs,
  }: let
    supportedSystems = ["x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin"];
    forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
  in {
    packages = forAllSystems (system: let
      pkgs = import nixpkgs {inherit system;};
    in {
      default = pkgs.stdenv.mkDerivation {
        pname = "image-processor";
        version = "0.1.0";
        src = ./.; # Since the flake is in the repo, we use local source

        # nativeBuildInputs are tools needed at build time (like CMake)
        nativeBuildInputs = [pkgs.cmake pkgs.pkg-config];

        # buildInputs are libraries your API depends on (e.g., libpng, opencv)
        buildInputs = [];

        # Nix automatically runs: cmakeConfigurePhase, buildPhase, installPhase
        # You just need to ensure your CMakeLists.txt has 'install()' targets.
      };
    });

    devShells = forAllSystems (system: let
      pkgs = import nixpkgs {inherit system;};
    in {
      default = pkgs.mkShell {
        inputsFrom = [self.packages.${system}.default];
        packages = [pkgs.gdb];
      };
    });
  };
}