Bun Rust Rewrite: 64 Claude Agents, 535k Lines of Zig
Bun 1.4's Rust rewrite hits canary: 64 Claude agents ported 535k lines of Zig in 11 days. What it fixes, what it overclaims, who's right: Sumner or Kelley.
- rust
- javascript
- ai
- webdev
Lead Frontend Engineer and Open Source Maintainer
I'm Dennis Morello, a Lead Frontend Engineer from Milan with over a decade of experience building accessible web interfaces. I maintain React Awesome Reveal and Arbor, and write about TypeScript, React, and Astro here.
Writing
All postsBaseline 2026: 4 APIs That Changed How I Code
Navigation API, container style queries, :open, and Math.sumPrecise() all became Baseline in 2026. The ones that replaced actual dependencies in my projects.
- webdev
- javascript
- css
Astro 7: What's New, What's Faster, and What Breaks
Astro 7 ships a Rust compiler, Sätteri markdown, Vite 8 with Rolldown, and advanced routing. Builds 15-61% faster. What changed, what breaks, how to upgrade.
- astro
- webdev
- javascript
- rust
Projects
Arbor
A friendly CLI for managing git worktrees.
Clipwise AI
Chrome extension that converts webpages to clean Markdown for ChatGPT, Claude, and other AI assistants.
Defrag98
A simulator of the classic Windows 98 Disk Defragmenter tool.
Investment Simulator
A simple investment simulator to help you understand the power of compound interest.
React Awesome Reveal
Performant and easy-to-use animation library for React apps.
Talks
Writing Accessible Components
Learn how to build React components that are accessible by default, with a live coding session building an accessible accordion from scratch.