iiinova — where your digital self keeps evolving

Also quite useful to visually see why installing a package is taking time:

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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!

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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)

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

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📦 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.

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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

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The official packages also pull in dozens of platform bindings and a JS runtime (emnapi + napi-rs). oxbox replaces all of that with its own tiny N-API host that runs in Node.js and browsers. upm.sh/npm/oxbox upm.sh/npm/oxc-parser upm.sh/npm/@oxc-par...

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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.

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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

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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!

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Node.js boots a few ms slower than a native binary. But on CI, size wins it back: restoring a 50–150 MB native package manager from cache takes longer than startup savings! Below you can see the measured/estimated timing.

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Pooya Parsa @pi0.io · 17/09/2026

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

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it generates a full query like this: Docs: github.com/pithings/adv...

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Pooya Parsa @pi0.io · 17/09/2026

if is old, jev is new!

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Pooya Parsa @pi0.io · 17/09/2026

Built a tiny intuitive JS SDK for typesafe.ai Ask questions, get typed answers.

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Pooya Parsa @pi0.io · 03/09/2026

I tried SIEVE a long time ago, handwritten in rou3. It wasn't that impressive, but now, for H3's route rules engine, it is effective!

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Pooya Parsa @pi0.io · 03/09/2026

New @unjs.io drop 🍕 jup: It provides shims for package managers and runtimes and automatically selects the right one from package.json. It is a full Corepack rewrite, but smaller, faster, and nicer. It supports ^ ranges, pnpm 12, Bun, Deno, Node.js, Aube, Nub. Give it a try!

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Pooya Parsa @pi0.io · 02/09/2026

🎊 srvx has reached v1.0 🎊 Two years ago, I went on an ambitious quest. My dream was to make export default { fetch } a universal consistent format for servers. srvx has been adopted and battle-tested by Nitro, H3, Elysia, TanStack, and many others projects 🖤

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Pooya Parsa @pi0.io · 28/08/2026

🏎️ perf tip of the day: If your ESM package uses "type": "module" and ships .js files, Node.js must find, read, and parse package.json to determine their format. Shipping .mjs avoids all this runtime cost. That’s why UnJS toolchain (obuild) has always shipped .mjs.

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Pooya Parsa @pi0.io · 28/08/2026

Best vacation ever! I’ve been building lots of things lately, and I should start releasing them soon... The final steps always take A LOT longer than the building itself. Releasing at least one cool project today 😁

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Pooya Parsa @pi0.io · 19/08/2026

h3 rules also has a built-in compiler that generates an optimized entry, ready to bundle!

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Pooya Parsa @pi0.io · 19/08/2026

H3 v2 rc.27: - Route Rules Engine, heavily audited - Session idleTimeout for sliding expiration - JSON-RPC improvements (mcp is comming!) - 18 bugs and security hardenings found by deepsec (pi+opus)

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Pooya Parsa @pi0.io · 19/08/2026

Randomly saw H3 Core (that Nitro bundles) is 3,140 bytes mingz, what a picidence 😆

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Pooya Parsa @pi0.io · 18/08/2026

🚀 unjs/ocache v0.3 is out! It was a big milestone. Faster. Safer. Binary Blob Storage, Streamed Cache Fills, Composable storage, and more! 🚀 (soon available in H3 and Nitro, can be used directly anywhere with anything even with Hono!)

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Pooya Parsa @pi0.io · 18/08/2026

TIL Uint8Array.fromBase64 exists in browsers!

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Pooya Parsa @pi0.io · 14/08/2026

md4x 0.27 is fully ported from C to Zig. Faster, and more memory-efficient. It also has a new /standalone portable build. A fast, spec-compliant Markdown parser, healer (for AI streams), and renderer (HTML, Text, CLI, and JSON) + a full YAML parser in a ~114 kB gz bundle.

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Pooya Parsa @pi0.io · 14/08/2026

Horrible finding: npm downloads ALL OPTIONAL PEER DEPS of packages just to resolve their metadata, then throws all away 🗑️ Fortunately, pnpm and friends don’t do this. But since many users rely on npm, we need to find work around in UnJS/Nitro packages...

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Pooya Parsa @pi0.io · 11/08/2026

TIL: fetch spec has a fixed list of HTTP verbs (DELETE/GET/HEAD/OPTIONS/POST/PUT) to be normalized ...StAnDaRdS

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Pooya Parsa @pi0.io · 05/08/2026

🎨 rangi 2.2 now ships 25 built-in color themes. (all optional, ~2.6kB min/gzip in total!)

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Pooya Parsa @pi0.io · 03/08/2026

Zigbee2MQTT is migrating to srvx to serve its static assets, dropping 22 transitive dependencies! It feels so good when libraries I work on every day power tools I use every day. ♥️

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Pooya Parsa @pi0.io · 03/08/2026

Morning updates: - npx rangi => colorized cat - Language aliases - JSX/TSX support (thnx @jex.me ❤️) - JSONC/JSONC/JSON-LD syntax + detection - A new classes mode renders ~15% faster and produces minimal HTML

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Pooya Parsa @pi0.io · 03/08/2026

Sunday night quest: 🎨 Rangi: Tiny Syntax Highlighter

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Pooya Parsa @pi0.io · 30/07/2026

H3 and Nitro are getting a native MCP integration! Teaming up with @hugorcd.com and @sandros94.com to release it soon!

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Pooya Parsa @pi0.io · 30/07/2026

mountx 0.0.2: - New transports: S3 API, 9P2000L, and NFSv4 - Lots of fixes and performance improvements With the new 9P and NFSv4 transports, we can now mount JavaScript virtual filesystems inside VMs such as QEMU and Firecracker! Link to the Docs below 👇

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mountx works in any container with FUSE available (e.g. Vercel Sandbox) this which makes it a really interesting fit for user-defined storage.

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You can try it out without even writing a line of code! $ npx mountx $ cat ~/mountx/README.md

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⛰️ mountx :: mount JavaScript as a real filesystem! Write ~6 lines of JS, get a real directory any process can read & write: editors, CLIs, AI agents. Rootless on Linux (FUSE) and macOS (NFSv3 with no kernel extensions). ~Pure JS, zero deps. mountx.vercel.app

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I’ve been exclusively coding in containers for a while now. no dev tools on my Laptop and PC. Today, I needed to test something and remembered that getutm.app can natively virtualize MacOS in MacOS. BTW Dropping this mini pkg shortly 😁

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