hy was first introduced to me at PyCon 2013 in a lightning talk by @paultag, the language's creator. It was a very fun lightning talk. You can still watch it online here:

https://youtu.be/1vui-LupKJI?t=968

I remember that day pretty clearly because in the same lightning talk session, Solomon Hykes introduced the Python community to docker, while still working on dotCloud. This is what I think might have been the earliest public and recorded tech talk on the subject.

https://youtu.be/1vui-LupKJI?t=1579

This was also the same PyCon that Eben Upton opened with a keynote to discuss the mission of Raspberry Pi, while also announcing that each of the 2,500 attendees would receive a free physical Raspberry Pi at the conference.

It was a pretty darn good year of PyCon; 2013 was apparently a good vintage for open source tech with Python connections.