I can't figure out how to set up Ocio on my system. Anyway, I'm having a few issues. When I launch CinGG from the launcher on my desktop (with the environment variables set for 16-bit and lcms2), I get the following error message: env: «$OCIO»: File or directory do not exist If I start it from the terminal, even though errors related to $OCIO keep appearing, CinGG starts up normally (these are the errors mentioned in a previous email). This happens with both --with-opencolorio and --without-opencolorio, and in both X11 and Wayland. Ocio doesn't work with the system's ffmpeg either: ffmpeg -i /home/paz/aereo.mp4 \ -c:v h264 -pix_fmt yuv420p10le -crf 18 -preset slow \ -vf "ocio=input=ACEScg:output=ACEScct:format=rgb48,scale=in_color_matrix=sRGB:out_color_matrix=bt709,format=yuv444p10" \ aereo_ocio.mov [...] [AVFilterGraph @ 0x5609ab1d1780] No such filter: 'ocio' Error opening output file aereo_ocio.mov. Error opening output files: Filter not found But in this case, I think it’s because Arch doesn’t enable Ocio by default. PS: While I was looking for information on how to configure OpenColoIO, I came across this site: https://pypi.org/project/colour-science/ Could this be helpful? Unfortunately, it's only Python. PS2: To test the x265 patches with Alpha, do I need to install all of them?