Why I Remapped Caps Lock
One underused key became a navigation layer for moving through code without twisting either hand into a chord.
Read the essayCAPS / navigation layer
Ali Safarpour
Code, keyboards, systems, experiments and rabbit holes.
I build things for the web and spend an unreasonable amount of time figuring out why they work.
Featured
01Latest writing
Notes with room to breathe.
Tasks, Microtasks, and the Rendering Gap
A small ordering rule explains why a resolved promise can still postpone painting and user input.
What "Non-Blocking JavaScript" Actually Means
JavaScript can start asynchronous work without making the single main thread magically perform two tasks at once.
The Main Thread Is a Queueing Problem
A practical model for understanding why browser work feels instant until one task holds the main thread for too long.
Interactive lab / 01
Keyboard Layer Visualizer
Hold physical Caps Lock or toggle the on-screen Caps control to turn H, J, K, and L into arrows.
Open the experimentRecent notes
Smaller things worth keeping.
Video
Watch the work unfold.
08:42Video · Developer Tools
My Current Development Setup
A short tour of the editor, terminal, keyboard layer, and browser tools I use for daily frontend work.
12:18Video · Browser
Profiling a Slow Interaction
A recorded debugging session that follows one delayed click from an input event to the long task responsible for it.
Currently
The work changes. This page keeps up.
Building small procedural scenes to learn the system by making mistakes in public. A fast home for essays, short notes, video, and experiments that belong beside the text.
What I am doing now