Recording multiple camera angles, full-size, simultaneously, on a Mac | Jeff Geerling
Just make a copy of Quicktime.app! Mind-blowingly simple and great. I dubbed mine "Quicktime Player Jr.app"
Choose live encoder settings, bitrates, and resolutions - YouTube Help
Good reference for proper bitrate settings for streaming.
datarhei/restreamer: datarhei/Restreamer allows you to do h.264 real-time video streaming on your website without a streaming provider
TheOpponent/mr-otcs: Automated video looping, streaming, and schedule generation