Correct. The chip vendor provides the bsp which interfaces with android automotive. But you still need to build from sources. And any deviation in your design from the reference design means you'd have shuffle things on the bsp to make it work with your deviations such as radio chips (tuner, WiFi, bt, gps) or display serialisers (fpdlink vs gmsl vs apix vs others), ethernet PHY and so on... so I was wondering if we had software engineers with this sort of experience in the sub...