PS/ I make silly mistake while copying and pasting at one point in the video and I don’t catch it right away as I apparently don’t save the file although I thought I had. Anyway, the still frame in the video contains the mistake:
The <h1 morph>${new Date()}</h1> line should be contained in a kitten.html`` tagged template.
(In the video I only catch the issue when updating the example to make into a persisted counter to show off Kitten’s internal JavaScript database, JSDB.)
PS. The code you see is all the code in an app that streams a new date to the client whenever a button is pressed. All of it. No other files. Nada. You start kitten and it works (once you’ve fixed my mistake.) ;)