postInstall = let
nodeHeaders = pkgs.fetchurl {
url = "https://nodejs.org/download/release/v${pkgs.nodejs.version}/node-v${pkgs.nodejs.version}-headers.tar.gz";
postInstall = let
nodeHeaders = pkgs.fetchurl {
url = "https://nodejs.org/download/release/v${pkgs.nodejs.version}/node-v${pkgs.nodejs.version}-headers.tar.gz";