Systems programming, where to go next?

Question

linux

Hello everyone, I read R.Love's book "linux system programming", "linux kernel, description of the development process", I'm learning the C language. And now I don't understand where to go next, I went into this area because I want to write, for example, operating systems for robots, develop new operating systems, etc. After reading the book, I got the impression that system programming is all about system calls and the like. How to start developing your own OS, and what knowledge is needed for this. Tell me where to go next?

Answer 1

Buy an arduino, a couple of motors, and an accelerometer. Make a reverse pendulum out of that with wi-fi and an oled display. Using QNX for example.
Then start writing your own OS, and so that it is no worse than QNX, otherwise who will need it?

Answer 2

set yourself a goal.
for example, to make some kind of applied product interesting to the world. the study of something without a higher meaning will slowly turn into a transfusion from empty to empty.
developing any product (be it an OS or a system for watering houseplants) just to make it will lead you to a dead end.

Answer 3

the main thing is to make it interesting, and practical work on specific projects was carried out, then success will be