I was willing to gloss over the AI usage because I really like the Bun DX. I used Bun in Shell scripts and small prototypes before and decided to use it for something bigger.

But then in a week or so of use, tons of issues appeared. Use-after-free bugs when a client disconnects (both in Zig and the Rust port, funnily enough) which will kill Bun. Unimplemented feature which just return “0” always. Many backpressure bugs which means something like “return new Response(fs.createReadStream(bigFile))” will greedily read and OOM your box.

All of these have been reported, robobun has made fixes of various quality, but none of this has been addressed. Some of them have been reported for months.

I’d prefer Bun to work on stability rather than fancy features like image processing or threads.