How do I produce YouTube content and do live stream on OpenBSD?
OBS is not supported on #OpenBSD. The only option is #FFmpeg. It is a powerful tool. You can do many things with it, including screencasting, mixing, live streaming, and so on.
You can find my FFmpeg screen casting and live-streaming scripts here: https://github.com/OpenBSDGuy/ffmpeg_...
FAQ 13 - multimedia: https://www.openbsd.org/faq/faq13.html