Drawing things
I like using computers to draw art; this topic has the pictures I’ve made.

Recreating the bird animation from Swift.org
The Swift.org website got a redesign, including an animation of a swooping bird, and I read the source code to understand how it works.

Doodling with the Mac’s command icon
Rotating a looped hook around a central point creates a surprising variety of shapes.

Drawing inner/outer strokes in SVG (clips and masks)
Showing how clips and masks work, and how they can be used to draw inner and outer strokes of a shape.

Illustrating lifecycle transitions in Amazon S3
A picture speaks a thousand words, which is why I always have pen and paper to hand.
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Creating static map images with OpenStreetMap, Web Mercator, and Pillow
I made some simple map visualisations by downloading tiles from OpenStreetMap, then annotating the tiles with Pillow.