Knowing the basic knowledge and how to bridge the gap will be very helpful in the next upcoming wave. You will have those who know all of C and those who know a

Knowing the basic knowledge and how to bridge the gap will be very helpful in the next upcoming wave. You will have those who know all of C and those who know all of A but how you connect B? If your confidence in Linux, switch it up. FreeBSD could do no harm, Haiku. Networking is another path to follow. Learn how to create a network, a home lab, install as AI Interface. Buy a VPS and start mucking around. I'm a Systems Architect so I have to constantly morph in to new areas when they appear. It's a challenge but I have more "know-of knowledge" than proficient but it keeps me employed. "What if I integrated X with Y" and see if it works are always fun experiments.