[Timber] Timber Source code Developer documentation

Hi, I'm trying to understand the layout and design of the Timber language compiler.. could not find any documents on this. I see that in Execution.hs function passes compile time arguments to the compiler/linker linkO cfg clo r o_files ++ " -DROOT=" ++ rootId ++ " " ++ " -DROOTINIT=" ++ initId ++ " " and the main function in rts.c file: (is this the starting point of ANY Timber function) and from here we give the "start" (or ROOT) of the timber program at compile time? main() { ROOTINIT(); envStart(ROOT); } is there a "Developers/ Hackers" document to timber? any pointers to great..