Anthropic just bought your favorite JS runtime...

Anthropic’s acquisition of Bun raises practical questions for teams betting on modern JavaScript tooling: what changes, what stays stable, and why would an AI company want a JS runtime in the first place? This video breaks down Bun’s path to this moment and what the deal could mean for developers relying on it. Key takeaways Walks through Bun’s origin story and the performance-driven choices behind it (including a Zig-based compiler effort). Recaps how Bun evolved into an all-in-one toolkit and its improving Node compatibility. Explains why Bun’s “small, fast, predictable” approach and single-executable builds fit CLI-style products like Claude Code. Discusses the open-source uncertainty post-acquisition, including concerns based on Anthropic’s track record mentioned in the video.