Absolutely I am making a bunch of assumptions. Following the tried and true Keep It Simple Stupid approach. Because there is no indication given that any more complexity is required, and keeping complexity to a minimum is key to efficient development. If there was anything actually technically impressive (or at least technically impressive sounding) about what they did, I trust they would have mentioned it.

I do not claim to be amazing, and it’s a simple fact that many basic examples/tutorials are named with hello world (and pretty easy to search for that way). A quick Google pulls up e.g. “Hello World!” of push notifications, Problems with simple “hello world” of ListView in Android

And of course I’m also explicitly using Hello World to reference the original comment

In all likelihood calling manufacturer’s API to read the value then compare to a compile-time constant? It’s a notification hello-world merged with display-a-list hello world and manufacturer’s reading-sensor-values hello world. Yes I do think it’s borderline trivial

Unless there will be disciplinary follow-up ( -> no reason for this design), I only see this going the way of de-facto scoreboards among kids.