I thought I could declare a require config file:

{
  "baseUrl": "/SuiteScripts/MyCompany"
}

Then in my script header I could add:

/**
 * @NApiVersion 2.X
 * @NScriptType Suitelet
 * @NModuleScope SameAccount
 * @NAmdConfig /SuiteScripts/MyCompany/settings.json
 */

define(["lib/somescript.js"], function(s){ .... });

But i keep getting an error back:

{
  "type": "error.SuiteScriptModuleLoaderError",
  "name": "MODULE_DOES_NOT_EXIST",
  "message": "Module does not exist: /lib/somescript.js",
  "stack": []
}