Oleg,
When you find time to update the patch, it would be worth considering there are a few of us it seems willing to adopt the project to some degree and try to further the firmware whilst you focus on your new build. If you are able to put together a brief description of the toolchain and repository relationships, I think you would be doing the entire community a huge service.
Also, in the spirit of open source, that would eventually possibly lead to new features being created suitable to integrate into the BRASS TRX... That is the beauty of open source I guess. So, whilst I think focussing on BRASS is of course the obvious option for you, the x6100 and most probably 6200 community can perhaps add value to BRASS by furthering the x6100 R1CBU firmwares.
Cheers
Scot
M0RWV?
