* This is for an Amcrest IP camera. Look up the URL for your specific camera. You can remove ‘–win “961,541,1920,1080”‘ to make the video full screen. “subtype=0” is high bitrate stream. “subtype=1” is low bitrate stream.
* You can now enable OverlayFS as an alternative to these read only instructions. Go to raspi-config > Advanced Options > Overlay FS and enable it. This will make the system read only. You can undo and redo this if you need to make changes to the system.