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Visualizing Buns new Rust Files against the rest of the JavaScript / cpp

A Reddit post visualizes the distribution of code in the Bun runtime, comparing its newly added Rust files against its existing JavaScript and C++ codebase.

Background

Bun is a fast JavaScript/TypeScript runtime (like Node.js or Deno) created by Jarred Sumner. It's designed as a drop-in replacement for Node.js but with dramatically better performance. The key technical tradeoff behind that speed: Bun is built in **Zig** (a low-level systems language) and uses **JavaScriptCore** (the engine behind Safari's JavaScript) instead of the more common V8 engine (used by Node, Deno, Chrome, Edge).

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