I have been a user of Home Assistant since version 0.54. Back then we had Sensors for USPS, UPS, and FedEx shipping that used the personal delivery tracking solutions provided by theses services (USPS’ Informed Delivery, UPS’ My Choice, etc). While these sensors worked well enough and they did the job most of the time they were based on Phantom.JS or the chromium driver scraping the data directly from the website. This solution slowly started breaking first with FedEx, the USPS, and finally UPS. FedEx and UPS seem unwilling to provide an API for us to program against instead so the community set into motion trying to find a solution.