co-founder and ceo @zephyrcloudio

Joined April 2022
347 Photos and videos
Pinned Tweet
Faster, cheaper, and higher quality! Who says you can't have it all. Coming Soon 👀
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Zack Chapple retweeted
JUST IN: 🇨🇳 China eliminates 12,000 ‘obsolete’ university degrees in push to prepare for the AI era​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​.
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Team out here meeting legends
Had a great lunch with @yusukebe :)
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贵州花江峡谷大桥 love the @xiaohongshu picture frame. Even had to wear my new @rspack_dev shirt
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We’re building a new Rust-based compiler & optimizer for TypeScript, using static type info from typescript-go. Think Google Closure Compiler for TS: smaller/faster apps & libs, targeting ~10–20% bundle size reduction. It’s still private, but we plan to open source it.
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Gotta love the pic the ai made for me at the @alibaba_cloud office in Hangzhou. Made with @Ali_TongyiLab
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Zack Chapple retweeted
Rspack tsgo cut overall build time by 60% in our benchmark 🚀 Type checking during builds is often one of the biggest build-time costs. tsgo integration is now available out of the box in: - Rspack plugin - Rsbuild plugin - Rslib
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This is one of the great uses for Fable
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Replying to @poteto
going through all the open compiler issues and PRs now with Fable and seeing if i can land more fixes for both TS and Rust!
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Zack Chapple retweeted
More Module Federation options, you say? @nstlopez contributed documentation for Rsbuild Module Federation in Turborepos. If you're in the Rstack ecosystem, this should feel great. x.com/nstlopez/status/206152…

Contributed a guide to @turborepo for running @rspack_dev Rsbuild with Module Federation in monorepos. Covers host/remote setup, shared dependencies, and wiring federation across multiple packages in a turbo repo. You can spin up the example with: pnpm dlx create-turbo@latest -e with-rsbuild-module-federation turborepo.dev/docs/guides/fr…
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杭州我来了
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When I was pitching I had a VC playing on his tablet while I was doing the pitch. It’s like he forgot the zoom camera was on. Glad to realize it wasn’t a mutual fit.
when I was raising, on a call a famous VC at [redacted] picked his nose... and then ate it. while I was pitching.
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A pretty fun game
Palworld has announced that version 1.0 is coming on July 2. Here's a new cinematic trailer. Nintendo is seething.
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From the outside it looks like there are two things the @voidzerodev and @rspack_dev team agree on: @rustlang is epic and @Cloudflare is the way to go.
All our main websites are now on void / cloudflare oxc.rs rolldown.rs tsdown.dev vite.plus voidzero.dev
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Zack Chapple retweeted
Me: can the entire blog post be just this graph? PR team: no
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This is such a big win for the web. @voidzerodev is doing some amazing work for the web.
VoidZero is joining Cloudflare. Our mission stays the same: to make JavaScript developers more productive than ever before. Vite, Vitest, Rolldown, Oxc, and Vite remain MIT-licensed. Evan and the VoidZero team will continue leading them. Cloudflare shares our commitment to open source. Together, we can keep investing in the tooling developers rely on every day, while bringing the Vite ecosystem and Cloudflare’s platform even closer together.
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Zack Chapple retweeted
Since 2025, China has made AI education mandatory for school children starting at age 6. In remote Xizang's Qamdo (surrounded by high mountains; the nearest airport is a 2.5-hour drive away, with only a few direct flights a day), primary school students fly DJI drones...
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我将与团队一同前往杭州和上海,与字节跳动及阿里巴巴的朋友们探讨微前端、Web 模块联邦以及 React Native 相关的话题. 有人愿意邀请我们去贵司办公室交流一番吗?如果您感兴趣,欢迎给我发送私信.
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I love Reta
Ozempic = 100% appetite suppressant (GLP-1) Tirzepatide ≈ 20% appetite suppressant (GLP-1) 80% GIP (insulin sensitvity) Retatrutide ≈ 20% appetite supressant (GLP-1) 70% GIP (insulin sensitivy) 10% Glucagon (calorie burning) 🧵
Community note
Current literature does not support assigning fixed percentages such as “20% GLP-1, 80% GIP” or “20/70/10” to tirzepatide or retatrutide. Those values are not established in human pharmacology and are not reported in clinical trials. nejm.org/doi/full/10.10… ; ncbi.nlm.nih.gov/books/NBK60372… nature.com/articles/s4142…
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Ahhhhh first 红牛 in China trip
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