Thanks Paul, I’ll try to put something together. A few notes about your instructions:
They apply to an older version of companion, before the big update a couple months ago. If you are using the newer version, then the command to get to the screen session will be ‘screen -r video’ instead of ‘sudo screen -r video’. The script is now located at ~/companion/scripts/start_video.sh.
In the newer version of companion, there is a webpage that will let you change the camera settings in much fewer steps.
The webpage is at 192.168.2.2:2770/camera. There, you may change the options, then click a button to restart the camera stream with the new options. The options are not persistent between boots when edited through the webpage. W will have an update soon that will make the settings persistent.