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Elliot Négrel-Jerzy

Front-end and UX software engineer based in Warsaw. Data visualisation, geospatial and cartography interfaces, design systems, computer graphics.

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Europe
- France
  - Paris
  - Toulouse
- Copenhagen
- Klagenfurt

SoftwareParis

Window controls overlay demo

A demo of the Window Controls Overlay API in an installable web app, for collapsing navigation bars into the title bar.

2025.11Paris open on the globe

Where

Paris

Written: November 2025
Linked: 1 place
Stack: TypeScript, React, PWA
Repository: github.com/BSoDium/WCO-demo

pwa
ui

Open wco-demo.bsodium.fr (opens in a new tab)

An experiment with the Window Controls Overlay API in a progressive web app, which lets a desktop PWA use the title bar area for its own navigation.

Sourcegithub.com (opens in a new tab)

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