Meow: New JS Runtime Bundles Package Manager, Linter, and Bundler in One Binary

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A developer has released Meow, an all-in-one JavaScript runtime and toolchain packaged as a single 82MB binary. It aims to replace fragmented tools like Node, pnpm, ESLint, Prettier, and Vite by parsing a codebase once into a shared in-memory AST that feeds the runtime, linter, formatter, typechecker, and bundler simultaneously. Meow uses Google's V8 engine and borrows Node compatibility layers from Deno, claiming warm package installs as fast as 7–15ms and over 43,000 HTTP requests per second in benchmarks. The tool also introduces a sandboxed ephemeral script runner that restricts network access and file writes by default, addressing security concerns around tools like npx. The project is self-described as early-stage, with the developer acknowledging users may encounter edge cases, but it reportedly supports Next.js 15, Astro, and SvelteKit out of the box.

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