Build Fast and Smooth Web Apps from Feature Phone to Desktop
summary
A playable Minesweeper-like PWA called proxx.app demonstrates building one codebase that runs on D‑pad feature phones through desktops by offloading game logic to a web worker via Comlink v4, rendering graphics in two canvases with optional WebGL, and using a DOM accessibility layer for screen readers. The team hits an initial payload target of 25 kilobytes and 60fps animations where hardware allows, falls back to static render on weak devices, and ships source on GitHub.
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chapters (10)
- 0:00The feature phone revival
- 1:46Browsing on feature phones
- 4:56Introducing Procs
- 7:42Game architecture
- 12:50Graphics performance
- 17:16Accessibility techniques
- 21:45Hardware adaptability
- 24:10Navigation and UX design
- 30:38Offline and build strategy
- 34:04Project learnings
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