I am about halfway through but it'd really help if someone could maybe do a TL;DR about the C++ features that are mentioned in this post.

Like what the fuck are profiles? Modules? C++ has modules? Half of my current job is in C++ and I have no idea what any of those things are. Which seems to be a common problem with C++, e.g. I've recently learnt that something for garbage collection used to exist, but it was scrapped and removed from the standard before I've first heard of it.

It's hard to understand the reddit comments linked without this context and the post itself is like an hour-long read.

EDIT: Okay I see profiles are explained in a section later, but modules are not? Also they're explained in opposition to "contracts" which I've also never heard of and jesus fucking christ, this language is a hellhole

EDIT2: I'll add operator . to the list of plot important characters that get no introduction if you're not familiar with the C++ Extended Universe