@oxc-node/core is the foundational core library for the Oxc project, a collection of high-performance tools for the JavaScript ecosystem. This package provides essential data structures, utilities, and core algorithms used throughout the Oxc toolchain, including the parser, linter, and formatter. It's written in Rust for speed and efficiency and exposed to Node.js via native bindings, forming the bedrock for Oxc's blazing-fast processing capabilities.