{
  description = "Rust dev shell";

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

  outputs = { self, nixpkgs }:
  let pkgs = nixpkgs.legacyPackages."x86_64-linux"; in
  {
    devShells."x86_64-linux".default = pkgs.mkShell {
      nativeBuildInputs = [ pkgs.rustc pkgs.cargo ];

      shellHook = ''
        echo "Rust toolchain version:";
        cargo -V;
      '';
    };
  };
}