Because I have no earlier experience from BSD and I am interested in developing DF, I am looking for source code level documentation (a lot of code examples).
As FreeBSD, NetBSD, OpenBSD and DF are somehow related together, I found that FreeBSD has nice books The FreeBSD Developers' The FreeBSD Handbook, Architecture Handbook and The Porter's Handbook. Could I use these books as a base, as jumping in to space of code of DF? What should I take into consideration that is different to DF? -- Tero Mäntyvaara