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Hi, I’m Wasim.

I’m a product and design engineer in London. I build for the web with TypeScript and React, and I care about the bits that are easy to skip: accessibility, performance, and animation that actually feels smooth.

Lately I’ve been making a reading app for classic novels, a Fantasy Premier League lab and some devtools. I also ran a study on whether design systems make government websites more accessible. Short version: they seem to help, a lot.

Recent work

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Do design systems actually help with accessibility?

I looked at 18,547 government websites in the US and UK. Sites built properly on a design system had about half as many of the accessibility problems automated tools can catch. I wrote the whole method down before touching the UK data, and the result held up there too.

Violations on sites built on a design system, compared with sites that aren’tUS estimate 0.50, UK estimate 0.56, both with 95% confidence intervals below 1, meaning fewer detected accessibility violations.0.40.60.81.0 (no difference)US, 12,252 sites0.50UK, 6,295 sites0.56
Detected violations compared with sites that don’t use a design system. Lower is better. Lines show 95% confidence intervals.
Do design systems actually deliver on accessibility?I tested the claim on 18,500 government websites in two countries. Sites built on a design system showed about half the accessibility violations, and the result survived every attempt I made to break it.

Say hello

Want to talk about a project, a role, or anything on here? Email’s the easiest way to reach me.

I’m also on LinkedIn, GitHub and Bluesky.