M&M: Masks & tracking Markers for video editing

I just uploaded a tutorial that wraps up a 5-part intro to working with Masks and Tracking Markers for video editing purposes. It covers the creation of masks, animating them using keyframes, tracking a feature, pairing the mask to the marker, and of course how to apply the end result in the Video Sequence Editor.
It's all done in v2.79, but I imagine a lot of it still applies to 2.80+ YouTube link