{ pkgs ? import <nixpkgs> {}}:
pkgs.mkShell {
  buildInputs = with pkgs; [
    # Rust toolchain
    cargo
    rustc
    rustfmt
    clippy
    rust-analyzer
    
    # Additional tools
    cargo-watch
    cargo-edit
    # Profiling tools
    cargo-flamegraph
    samply
    perf
  ];
  
  # Environment variables
  RUST_BACKTRACE = 1;
}