in the wootedit repo you can find a very simple (but working)
collaborative notepad implementation, based on WOOT algorithm.
if you ever wanted to know how all those collaborative editors were done...
look no further! ;-) wootedit is simple, but complete implementation of
such editor, with UDP-based network communication. currently, it was tested
under GNU/Linux only, but there are no platform-specific code (except some
socket API), so porting it to another OS should be trivial.
you will need IV and ARSD libraries to build wootedit.