Hi is me:

https://www.youtube.com/watch?v=NSLvERZQSok#t=965

That later turned into

http://doitlive.readthedocs.org/en/latest/

and

https://www.youtube.com/watch?v=u4_UhFloISY

Very cool, though what I saw was someone else, probably over a decade ago, who must have had the same idea independently. Though I don't know that he released it as you did.

Perhaps you're thinking of Pete Fein's lightning talk at PyCon 2019 in Atlanta?

https://www.youtube.com/watch?v=MVzTcQkMNXg

Ah, probably using playerpiano. Same idea, but I wanted it for bash.

Ah, yes, and in fact the presentation was from Pete Fein himself! I guess he did release it after all.

You should post a show HN of this. It's really cool and I definitely will be using this in about a month. I wouldn't have found it if not for this comment.

I didn't make it. I made a quick personal hack a few minutes before my lightning talk and Steven Loria later turned it into a real package. I'm just listed in the kudos:

https://doitlive.readthedocs.io/en/latest/kudos.html

this is awesome! nice work

Http://hackertyper.net does that for silly Hacker text, or http://geektyper.com/mobile/ for mobile.

There's something similar for PowerShell: https://www.powershellgallery.com/packages/Start-Demo/1.0.1