anchor.diff:    inherit (cudaPackages) cudatoolkit cudnn nccl;
   
     pname = "jaxlib";
  -  version = "0.3.15";
  +  version = "0.3.22";
   
     meta = with lib; {
       description = "JAX is Autograd and XLA, brought together for high-performance machine learning research.";
  
positive.code:     fetchAttrs = {
        sha256 =
          if cudaSupport then
            "sha256-tdO4YjO985zbittb16RFWgxgUBrHYQfv5gRsA4IAkTk="
          else if stdenv.isDarwin then
            "sha256-+XYxfXBCASueqDGg0Zqcmpf7zmemYM6xCE+x0rl3j34="
          else
            "sha256-La1wC8X5aGK5mXvYy/kO8n4J+zaRZEc/DAX5zaH1D5A=";
      };
  
      buildAttrs = {
  
negative.code:       owner = "google";
        repo = "jax";
        rev = "${pname}-v${version}";
        hash = "sha256-bnczJ8ma/UMKhA5MUQ6H4az+Tj+By14ZTG6lQQwptQs=";
      };
  
      nativeBuildInputs = [
  