We rewrote our Rust WASM Parser in TypeScript – and it got 3x Faster

Re:We rewrote our Rust WASM Parser in TypeScript – and it go... by bluelightning2k on Saturday March 21, 2026 @08:18AM (#47466353)

Great write up. It feels like craft in the age of slop.

Not sold about the fundamental idea of OpenUI though. XML is a great fit for DSLs and UI snippets.

[ Parent | on HN ]

Re:We rewrote our Rust WASM Parser in TypeScript – and it go... by rabisg on Saturday March 21, 2026 @09:37AM (#47466919)

We tried all formats - XML, json, jsonl, even toon - before deciding that we need to invest in OpenUI Lang

The primary motivation was speed and schema cohesion. We were running a JSON based format, Thesys C1, in production for a year before we realized we cannot add features fast enough because we were fighting the LLMs at multiple levels. It's probably too much to write in a comment but we'd like to write about the motivation and all the things we tried ona a separate blog soon

[ Parent | on HN ]

Re:We rewrote our Rust WASM Parser in TypeScript – and it go... by twoodfin on Saturday March 21, 2026 @08:38AM (#47466475)

Are you kidding? To the extent this was “crafted” it was by an LLM from somebody’s notes in a prompt.

The other day, someone linked back to this 2018 post on finding a cache coherency bug in the Xbox 360 CPU:

https://randomascii.wordpress.com/2018/01/07/finding-a-cpu-d...

So much more genuinely engaging than any of the AI-“enhanced” sloppy, confused, trite writing that gets to the front page here daily because it’s been hyper-optimized for upvotes.

[ Parent | on HN ]