shell nix example with vscodeEnv

shell.nix

with import <nixpkgs>{};
let vscodeEnv = (callPackage (fetchFromGitHub {
        owner="countoren";
        repo="VSCodeEnv";
        rev="3992e93fa762b3982c04362da0cd74942350000e";
        sha256="050abfl9tikwn51nb4zva3gxxawp1xynwkf1qw4s7jqgdaz06qx27";
  }) {}).vscodeEnv;
in 
mkShell {
  buildInputs = [ 
    ## this will give you a code executable in shell that when run with code . in the folder will get a vscode that is specialized to this specific folder.
    ## note that extensions could be installed in vscode when quiting the mutable-extensions.nix file will be updated for you with all the extensions that were installed 
    ## settings.json andm keybinding.json will be created base on this nix expression(override the files with nix defintion when code starts).
    (vscodeEnv {
        nixExtensions = [];
        
        mutableExtensionsFile = ./mutable-extensions.nix; 
        settings = 
        {
          "somepropinsettings.json" = "value";
        };
        keybindings = 
        {
        };

    })
  ];

  shellHook = ''
  '';
}