As of right now he ANX camera project isn't at works. The developers don't have plans on neither stopping nor updating devices.
GCAM is the better option as of right now. Here's the best one I've found so far.
Download GCAM_8.4.400.42.XX_SHAMIM_V21 by Shamim.
The only things you need to configure are the auxiliary cameras as they aren't mapped by default. You can do that in the advanced settings, map it with the proper ID and name.
If you want to use ANX camera, some features won't work. Refer to this post for the detailed steps to get it working. Btw this was tested on A12. So can't speak for A13 or other ROMS / Versions.
PixelOS is an AOSP based ROM, with Google apps included and all Pixel goodies (launcher, wallpapers, themed icons, google sans fonts, Monet color based system wide theming, boot animation), a fork of OG Pixel Experience with improvements on the...