Writing

Notes for the spaces between things.

Short, specific writing about the ideas behind Northlight apps.

Sunrise alarm apps for iPhone

How light-based waking works, what an audio-only ramp can and can not replicate, and when a real sunrise lamp is worth it.

Tabata timer explained

The 20/10 structure, why it needs different cue behaviour from EMOM, and what to look for in a Tabata timer app.