tsz: high performance TypeScript checker, emitter, and language service in Rust

aerzen wrote: post #5

vivzkestrel wrote: post #3

how does it compare to tsx ? https://github.com/privatenumber/tsx

It seems like tsx is a wrapper around tsc for easy compile+run workflow. tsz seems to be a compiler, a replacement for tsc

Seems like tsx is a wrapper around esbuild, not tsc.

Re: tsz: high performance TypeScript checker, emitter, and language service in Rust

#7

Post by presentation » Thu, May 28, 2026, 11:15 AM UTC

I ran into this earlier, the commit history is the one maintainer and Claude pumping out like hundreds of commits 24 hours a day. Aside from the token cost, I’m wondering how this will turn out relative to the official tsgo native push.

Re: tsz: high performance TypeScript checker, emitter, and language service in Rust

#8

Post by rjh29 » Thu, May 28, 2026, 6:32 PM UTC

presentation wrote: post #7

I ran into this earlier, the commit history is the one maintainer and Claude pumping out like hundreds of commits 24 hours a day. Aside from the token cost, I’m wondering how this will turn out relative to the official tsgo native push.

Yeah not surprising. But if uses the TS test suite and compares output with tsc byte for byte, then an AI banging its head against the wall for a week should get there eventually.

Re: tsz: high performance TypeScript checker, emitter, and language service in Rust

#9

Post by presentation » Fri, May 29, 2026, 11:55 AM UTC

rjh29 wrote: post #8

presentation wrote: post #7

I ran into this earlier, the commit history is the one maintainer and Claude pumping out like hundreds of commits 24 hours a day. Aside from the token cost, I’m wondering how this will turn out relative to the official tsgo native push.

Yeah not surprising. But if uses the TS test suite and compares output with tsc byte for byte, then an AI banging its head against the wall for a week should get there eventually.

I think it’s been banging it’s head against the wall for many months now lol