That's OpenCode. The model is Claude Opus, which is probably RL'ed pretty heavily to work with Claude Code. So it's a little less surprising to see it bungle the intentions since it's running in another harness. Still laughable though.
> Tinnitus is a condition when a person hears a ringing sound or a different variety of sounds when no corresponding external sound is present and that other people cannot hear.
The interface also allow to comment, post and interact with the original HN platform. Credentials are stored locally and are never sent to any server, you can check the source code here: https://github.com/GabrielePicco/hacker-news-rich.