Node CLI: npm packages cannot be required

[stesap]

OpenUI5 version:

• all versions

Steps to reproduce the problem:

• create a new folder
• install @openui5/sap.ui.core package via npm: npm i @openui5/sap.ui.core
• start node CLI and require the installed module node -r @openui5/sap.ui.core >> error

 ~/code/test % npm i @openui5/sap.ui.core

+ @openui5/sap.ui.core
added 1 package from 1 contributor in 2.915s

 ~/code/test % ls node_modules/@openui5 
sap.ui.core

 ~/code/test % node -r @openui5/sap.ui.core
internal/modules/cjs/loader.js:983
  throw err;
  ^

Error: Cannot find module '@openui5/sap.ui.core'
Require stack:
- internal/preload
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:980:15)
    at Function.Module._load (internal/modules/cjs/loader.js:862:27)
    at Module.require (internal/modules/cjs/loader.js:1040:19)
    at Module._preloadModules (internal/modules/cjs/loader.js:1296:12)
    at loadPreloadModules (internal/bootstrap/pre_execution.js:435:5)
    at prepareMainThreadExecution (internal/bootstrap/pre_execution.js:68:3)
    at internal/main/repl.js:18:1 {
  code: 'MODULE_NOT_FOUND',
  requireStack: [ 'internal/preload' ]
}

Below a test with @babel/core package.

~/code/test % npm i @babel/core

+ @babel/core@7.8.6
added 36 packages from 56 contributors in 1.375s

~/code/test % node -r @babel/core
Welcome to Node.js v13.8.0.
Type ".help" for more information.
> var babelCore = require('@babel/core');
undefined
> babelCore
{
  Plugin: [Function: Plugin],
  File: [Getter],
  buildExternalHelpers: [Getter],
  resolvePlugin: [Getter],
  …
  …
}

What is the expected result?

The module should be required by CLI of node. Having separate NPM modules is great, but it would be even more awesome to have these available in node CLI environment for fast testing of, e.g. formatters.

What happens instead?

The module is not required and fails with an error, see above command line output.

[stesap]

ok, as I read the documentation properly, UI5 Tooling is needed to use the NPM modules.