{ pkgs, llvmVersion }:
let
  # Select the correct LLVM/Clang version
  llvmPackages = pkgs."llvmPackages_${llvmVersion}";
in
pkgs.mkShell {
  name = "clang-cpp-shell";

  # Native dependencies (e.g., compilers, build tools)
  nativeBuildInputs = with pkgs; [
    # Compiler and core tools
    llvmPackages.clang
    llvmPackages.lld
    llvmPackages.bintools
    
    # Language-specific tools
    llvmPackages.clang-tools # Includes clang-format, clang-tidy
    cmake
    ninja
    gdb
    valgrind
    nixpkgs-fmt
  ];

  # Runtime dependencies (e.g., shared libraries)
  buildInputs = with pkgs; [
    # Common libraries (example)
    libcxx
    boost
  ];

  # Environment variables
  shellHook = ''
    export CC=clang
    export CXX=clang++
    echo "Clang version: $(${llvmPackages.clang}/bin/clang --version | head -n 1)"
  '';
}