[divbzero]

I was wondering the same!

The author appears to be using his own functions written in vanilla JS. The Gears page loads a custom Canvas library base.js [1] plus an page-specific gears.js [2]. iOS graphics appears to be an area of expertise [3] for the author.

[1]: https://ciechanow.ski/js/base.js

[2]: https://ciechanow.ski/js/gears.js

[3]: https://github.com/Ciechan?tab=repositories

(P.S. <canvas> is an interesting choice, I had expected <svg> before opening the page inspector. Separately, I love the creative use of TLD in the domain name.)

[pier25]

Thanks for the JS files.

Would be nice to know about his process.

Here it appears he is importing the graphics from somewhere else converted to imperative drawing code:

https://imgur.com/jFpN0f3.jpg

[bestest]

That's just a function that draws a spanner.

[pier25]

Obviously, but my point is that if you look at the coordinates these do not seem to have been handwritten.