For what it's worth, if I hadn't learned about low-level concurrency primitives in Rust, I wouldn't have had the mental framework to succeed in creating a realt

For what it's worth, if I hadn't learned about low-level concurrency primitives in Rust, I wouldn't have had the mental framework to succeed in creating a realtime websocket service in Python. My two cents is that learning is enriching and inspiring. If you learn concepts from one context you can apply them in another in new and surprising ways. Don't put yourself in a box like "I'm just a normal developer, I don't know about that OS stuff"; learn about the things that excite you and worry about applying them later. Specialization is for ants. But if this advice isn't useful to you, feel free to discard it.