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Just added a code breakdown for the Draw Together¹ Kitten² app to my blog post with the tutorial video:

ar.al/2024/03/26/draw-together

Draw Together, in ~50 lines of code, is a real-time collaborative drawing tool on a 20×20 pixel grid where people can click to toggle the colour of each pixel.

(The full source and explanations fit the four screenshots on this post.)

¹ draw-together.small-web.org
² kitten.small-web.org

@aral That’s amazing. I had to click. It was blank! No more. So it neatly persists?

Aral Balkan

@cogdog In memory.

Although it could if I wanted to using the integrated JSDB in Kitten :)

kitten.small-web.org/tutorials

@aral Amazing how much it is morphing!