OSDev.org

@cxzuk: Or, you could write the OS for programmers, who would write their code for administrators, who would set up the system for users. If you do anything else, you'll at best be stuck with entire layers of the system to write and maintain yourself. Also, assuming you're a programmer, which you have to be to write an OS, you'll know what programmers want more than any other group, so all you have to do is design the ideal OS for yourself.