God damn, telling me to go to YouTube to figure out what it can do, where the video is some desktop screen; and audio (and minutes of my time) is needed to hear what they're saying. So user unfriendly, mobile users in particular.
this is a tiny script/hack that someone did 2 years ago and was kind enough to open-source. That person probably did not post the link to HN. So, what do you expect?