> Do I need to know C before starting?

> No. Chapters 4 and 5 teach C from the ground up, focusing on the parts of the language that matter for kernel work (pointers, structures, memory layout, the preprocessor, and calling conventions). If you already know C well, sidebars in those chapters tell you what to skim and what to read carefully.

> Do I need to know UNIX or FreeBSD?

> No. Chapter 2 walks you through installing FreeBSD in a VM or on bare metal, and Chapter 3 introduces the UNIX command line, filesystem, processes, permissions, and editors. By the end of Part 1 you will have a working lab and the vocabulary to use it.

If you're trying to get more contributors to your project, that seems like an excellent way to do it:) You have any interest in working on the project? Great, here's everything to get you there!