I'm thinking about network protocols and binary packets, specifically. To me, that stuff is pretty important to have a grasp of. It's very awkward to do packet

I'm thinking about network protocols and binary packets, specifically. To me, that stuff is pretty important to have a grasp of. It's very awkward to do packet parsing and generation in Python, for example (I've done it). Even working in front-end dev now, I benefit from understanding what's driving HTTP and WebSocket (High-Performance Browser Networking is also a great book for understanding this stuff).