Adapted from https://deovr.com/blog/94-gopro-rig-8k-60fps-vr-for-under-1000 to have horizontally orientated cameras for better resolution/better aspect ratio. Distance between both lenses is now 5cm (similar to xreal beam pro). It is not yet perfect as it requires some slight cropping from top of left image and from bottom of right image to get it perfectly aligned.

See https://deovr.com/n7tdhb for some camera footage.