If Haiku is not on your main machine, a good alternative to record Haiku videos is to use OBS on your main laptop/desktop machine :
If you own 2 machines the additional hardware is : video card capture + 1 HDMI cable + 1 microphone connected to your recording machine.
Limitation : sound recording from Haiku will not work via HDMI if I’m not mistaken.
The good news : the first price for video recorder hardware is not so expensive todays.
Upcoming article on Haiku Insider for the details 