A shot-scraper-style JSON API on Bun 1.4's new Bun.WebView

Simon Willison's Weblog notes that Bun 1.4, the first stable release since the project's rewrite in Rust, arrived on Thursday. The update adds a host of features—including Bun.Image, Bun.markdown, and a new Bun.WebView API that enables browser automation via macOS WebKit or Chromium's DevTools Protocol. Performance gains are highlighted, with idle CPU usage cut by a factor of five, memory consumption reduced up to thirty‑five percent, and start‑up time fifty percent faster on Linux. The author’s prototype shows the JSON API can run in a container using roughly two hundred megabytes of RAM, making it a lightweight option for headless web tasks.

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