An interesting integration issue that came up with a client with a Drupal site hosted on Plausible.io with a Gatsby module that tied into Github code which triggered a Vercel deployment into an integrated flat site with 3rd party code.

Drupal is a PHP-based content management server. 

Plausible.io is a javascript-based site-tracking module that (in this case) is managed by npm

Gastby is designed to take an entire Drupal site, flatten it into a node.js implementation. and then package it for delivery. In this case it too was managed by npm