Hi all, I read the book R.Love "system programming linux", "linux kernel, description of the development process", I am studying the C language. And now I don't know where to go next. I went into this field because I want to write operating systems for robots, develop new operating systems, etc. After reading the book, I got the impression that the system programming is a lot of system calls, and so on. How to start developing your own OS, and what knowledge is required. Can you tell me where to go next?