Vite+ 1.0 ships VoidZero's Rust JavaScript toolchain as one package backed by vendor benchmarks

Type-aware linting is the slow pass in a TypeScript project. Rules that catch floating promises, misused async callbacks and unsafe `any` need the whole TypeScript program in memory ^[17]. Building that program is where ESLint with typescript-eslint spends its time, according to a developer's breakdown of the announcement on dev.to ^[17]. tsgolint is the engine behind Oxlint's type-aware rules, and the announcement calls it stable ^[5].

Evan You's four-month progress report on VoidZero at Cloudflare describes the linter as "up to 18x faster than ESLint in large codebases" ^[1]. That qualifier puts the best case on big repos. For the figure to show up in your CI, three things have to hold: the repo is large, the type-aware rules are on, and lint takes a real share of pipeline wall-clock time. If lint is a short step, even 18x saves little. For planning I would use the bottom of the stated range, 12x ^[5], and still time it.

The shared program is the better piece of engineering. Most CI pipelines the dev.to author has seen run `tsc --noEmit` and ESLint as separate steps, and both pay to parse the whole project ^[16]. Building the program once removes one of those parses, whatever the per-tool multiplier turns out to be. In a pipeline that already runs tsc on its own, I'd test this first. The config the announcement shows is two flags ^[10]:

```js import { defineConfig } from "oxlint"; export default defineConfig({ options: { typeAware: true, typeCheck: true, }, }); ```

By comparison, the author's current `eslint.config.js` has a parser option pointing at a tsconfig, a project service setting, and a comment explaining why the slow rules are slow ^[21]. "Fewer moving parts is a win even if the speedup turns out to be 6x instead of 18x," the developer wrote ^[15].

Oxc is the compiler, Rolldown is the bundler, Vite sits on top, and Oxlint and Vitest use the same parts ^[7]. A shared parser and AST mean one fix pays off in several tools ^[7]. According to the dev.to author, Vite+ 1.0 is the first time the whole Rust-based JavaScript toolchain comes in one box ^[2]. It includes Vite 8 and Vitest 5 ^[14].

Oxfmt's case rests less on speed. Formatting a small project already takes a few seconds, the author notes ^[24]. Oxfmt claims Prettier-compatible output, and migration runs through `pnpm oxfmt --migrate prettier` ^[12]. The author plans to run it on a branch and count changed lines before keeping it ^[19]. "I'd switch for the single toolchain, not for the seconds saved," the developer wrote ^[20].

The dev.to post is a reading of the announcement plus a list of checks. Its author has not yet measured any of these tools on their own repos ^[13].