Pooya Parsa

Randomly checking @vlt.io package-manager benchmarks 🙈 > upm is fastest at 372ms, 20.6× faster than npm!!!

Randomly checking @vlt.io package-manager benchmarks 🙈 > upm is fastest at 372ms, 20.6× faster than npm!!!

benchmarks.vlt.io/package-mana...

Nitro v2.13.5 maintenance release is out 🚀 27 fixes for Vercel, Cloudflare, Bun, Node and Deno, faster dev error sourcemaps, and Node 24 support for more presets. More backports for the Nitro v2 line will be coming in the next minor, v2.14.

Did you know that the install size for packages with native dependencies (vite, rolldown, sharp, ...) varies by platform? upm web now lets you resolve packages with different platform presets to preview their install size.

One of the best pleasant moments using Claude models: they natively know about @unjs.io libs and their design.

New minimal error page for Nitro. -95 fewer files and 339 KB / −13.7% smaller dist. I will likely port this to srvx later so all HTTP layers have consistent DX. THANKS @adonisjs.com for youch for powering Nitro's error page and for the inspirations. ♥️

🌳 rou3 v1 is finally stable! The routing toolkit powering h3 and Nitro. rou3 now has over 80% URLPattern compatibility, with deliberate differences that keep server-side HTTP routing fast and sane. Advanced patterns like /docs/**.md are now supported too.

📦 upm v1.4 is out! 🔗 overrides/resolutions and link: dependencies 🐙 github:, gitlab: and bitbucket: deps (no git needed) 🔒 21 bug fixes / 9 security fixes 🔥 fewer registry requests 🌐 upm [dot] sh improved 📊 less noisy benchmarks Still small, still native-class speed ⚡

upm.sh has become my new npm package inspector! It’s fast, reliable, and does everything in the browser! And building it was easy just use the upm API haha!

unjs/obuild now supports minifyLibs and compressLibs options Selectively minify bundled deps or compress them inline into self-extracting ES modules, for when disk size matters. undici: 906 kB → 541 kB (min) → 146 kB (compressed /~5ms to extract on demand)

📦 upm 1.3: - Faster - Better hoisting - Consumes less resources on large repos - Minimal CLI progress bar + an onProgress API - Matches native-scores in independent @vltpkg benchmarks* (3.4ms/pkg => 2ms/pkg on average) *Benchmark results vary by hardware and scenario. upm is by far the smallest.

On modern terminals like Ghostty, upm also shows progress natively in the window!

Just published github.com/unjs/oxbox 🐂 🛠️ A tiny, portable JS library for parsing and transforming JS/TS/JSX, powered by oxc. ⚡ Optimized wasm build in a single JS chunk 🪞 Same API as oxc-parser + oxc-transform 🤝 Works in browsers and Node.js 💾 Fits on a floppy disk

The oxbox wasm build also has a few extra perf tricks! ⚡ SIMD (simd128) across the whole build 🔗 Parser and transformer optimized together (LTO) 🧵 Multithreaded async APIs with prewarmed workers

Just published github.com/unjs/oxbox 🐂 🛠️ A tiny, portable JS library for parsing and transforming JS/TS/JSX, powered by oxc. ⚡ Optimized wasm build in a single JS chunk 🪞 Same API as oxc-parser + oxc-transform 🤝 Works in browsers and Node.js 💾 Fits on a floppy disk

The official oxc packages ship the parser and transformer as separate binaries, and since the transformer includes its own parser, much of it is duplicated. Oxbox links both into one wasm build and embeds it compressed with 🗜️ zopfli then base93-encoded to keep it small.

Introducing 📦upm: 🪶A fast, tiny package manager for the npm registry. ✨Written in TypeScript, it installs at native-class speed and has a JS API, at a fraction of the size of native tools. 🤝Compatible with your existing .npmrc and lockfiles. 👉 Try at upm.sh

Every upm command is also a JS utility, and the store takes pluggable backends. The website runs a real upm install right in your browser tab and reinstall every time you reload it. Try it at upm.sh before installing anything!

Introducing 📦upm: 🪶A fast, tiny package manager for the npm registry. ✨Written in TypeScript, it installs at native-class speed and has a JS API, at a fraction of the size of native tools. 🤝Compatible with your existing .npmrc and lockfiles. 👉 Try at upm.sh

upm uses Node.js built-ins for worker threads, networking, compression and the filesystem, and matches the speed of Rust package managers*. * Benchmarks are mainly an indicator; results vary with project, network and hardware.

if is old, jev is new!

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