> For all the overlap in strategy, notable is the variety in engines underpinning all these runtimes. While Deno continues Node.js's tradition of using V8, we see Bun employing JavaScriptCore, WinterJS using SpiderMonkey, LLRT on QuickJS, and Cloudflare Workers on the tailor-made workerd. No longer is the backend solely a stage for Node.js and V8 – it's now fashionable to pick a runtime and engine optimised for the task.

I don't think this is completely accurate. While Cloudflare's workerd is a tailor-made runtime (equivalent level to deno/node/bun/etc.) it uses the V8 engine.

https://github.com/cloudflare/workerd/blob/main/docs/v8-upda...

My mistake, thank you for the correction! I've updated the article to avoid any future readers walking away with the wrong information.

That is correct. It uses v8