This may be obvious but you can have a Zoom meeting with just yourself to make a video. Start the recording, launch the window you want to share, or a whiteboard and off you go . . . I upload the recording to Youtube for captioning. If I am feeling very professional that day I will add punctuation to my captions.
(Also, that first Greek letter is mu. I’m blaming the microphone not the brain.)
Yuja is another option for this. Directions for using Yuja are in the Moodle/HFCOnline course shared with us earlier this week.
Teams will also allow similar capture. Watch for materials soon!