{
  description = "A C++ project flake";

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

  outputs = inputs@{ self, nixpkgs, flake-parts, ... }:
    flake-parts.lib.mkFlake { inherit inputs; } {
      systems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];

      perSystem = { config, self', inputs', pkgs, system, ... }: {
        packages.default = pkgs.stdenv.mkDerivation {
          pname = "my-cpp-app";
          version = "0.1.0";
          src = ./.;

          # Build-time dependencies (compilers, build systems)
          nativeBuildInputs = with pkgs; [
            cmake
            ninja
            pkg-config
          ];

          # Runtime dependencies (libraries your code links against)
          buildInputs = with pkgs; [
            # boost
            # fmt
          ];

          # Optional: Configure CMake flags
          cmakeFlags = [
            "-DCMAKE_BUILD_TYPE=Release"
          ];
        };

        devShells.default = pkgs.mkShell {
          inputsFrom = [ self'.packages.default ];

          packages = with pkgs; [
            gdb
            clang-tools # Includes clang-format and clangd (LSP)
            valgrind
          ];

          shellHook = ''
          '';
        };
      };
    };
}