Hey this is it for now. More will come soon as questions come in but it's just Marauder firmware, and then some subghz modules which run 3rd part Flipper Zero apps.

The following documentation describes which antennas to connect to the different SMA connections on your Flipper Zero BFFB.
images coming soon

From left to right: 2.4ghz, 400mhz, 900mhz, GPS, 2.4ghz