How to specify a folder for your modules in Node.js (without npm)?

Question

Node.js

I made a test index.js file in the folder:
C:\@repositories\element2\index.js

process.env.NODE_PATH = "C:\\@repositories\\element2\\modules";
require("node-firebird-promise-old");

In folder:
C:\@repositories\element2\modules\node-firebird-promise-old
I have a module. Specifically there is an index.js file.
When I run C:\@repositories\element2\index.js I get the error

module.js:471
throw err;
^
Error: Cannot find module 'node-firebird-promise-old'

How can I write NODE_PATH inside the script so that Node finds the right module ???
I tried setting NODE_PATH outside the script
NODE_PATH=C:/@repositories/element2/modules
That's how it works. But I need to specify this inside the script so as not to depend on absolute paths, which, in addition, are set outside the script.

Answer 1

Use this module app-module-path-node