flake.nix

{
  inputs = {
    fenix = {
      url = "github:nix-community/fenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nixpkgs.url = "nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };
 
  outputs = { self, fenix, flake-utils, nixpkgs }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; config.allowUnfree = true; };
        rust-toolchain = with fenix.packages.${system}; fromToolchainFile {
          file = ./rust-toolchain.toml;
          sha256 = "sha256-KUm16pHj+cRedf8vxs/Hd2YWxpOrWZ7UOrwhILdSJBU=";
        };
      in {
        devShell = pkgs.mkShell rec {
          buildInputs = with pkgs; [
            lld
            rust-toolchain
            pkg-config
            rust-analyzer
            graphviz
            websocat
            python312
            uv
            claude-code
          ];
          shellHook = ''
            echo "Python: $(python --version)"
            echo "uv: $(uv --version)"
          '';
          LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath buildInputs;
        };
      }
    );
}