What kind of libraries, given the tasks solved by Walmart, do you have in mind?
I don't have experience with machine vision but here's an example of a speech2text library that integrates whisper.cpp in an idiomatic way: https://github.com/sandrohanea/whisper.net
There are many good community projects with code quality way higher than your average enterprise SDK with layers upon layers of abstractions and allocations. Finding them is the same as with most other languages like Rust or TS.