Article note: Ooh, they fixed the internal pulldown bug that has made 2035s kind of sketch to design with, made the IOs fully 5V tolerant, and introduced a variant with onboard Flash.
The word for all this is ‘mature programming environment.’ Basically, when hardware performance has been pushed to its final limit, and programmers have had several centuries to code, you reach a point where there is far more significant code than can be rationalized. The best you can do is understand the overall layering, and know how to search for the oddball tool that may come in handy