This is the error message on 20.04 when trying to follow the instructions: These instructions on Camera not working on Macbook Pro
/etc/local/src/bcwc_pcie/firmware/facetimehd-firmware/facetimehd-firmware$ make
Checking dependencies for driver download...
/usr/bin/xzcat
/usr/bin/cpio
make: *** [Makefile:36: AppleCameraInterface] Error 1
How do I fix this on 20.04?