The (a?) version of the open source firmware & related tuning software is
BBS-FW, available here, and the author of it
posts about in on the forum, here.
Is there a video specifically on installing and using BBS-FW? Not that I've seen, but there is this video that goes over using
loading and using alternative BBS firmware.
Going/messing with the firmware alternatives is somewhat risky (potential of bricking the controller), only works with particular revisions of the controllers (
see near bottom of this page), requires Mickysoft Windows (and a technical comfort level with same), and being realistic about what this firmware can provide (more features mostly, not an "ultimate power" releaser).
There's little more untapped power potential in the BBS02 - it is what it is. and has served many owners well. I've loaded the BBS-FW firmware on two BBS02 builds (
here and
here), and am happy with the motor behavior.