Looks neat (and despite trying to simulate a WinXP-like UI it relies enough on the native web stuff that Firefox can translate the Chinese to English without breaking much) but some more information would be great: how was it made? E.g. was it just some one-shot "make me a website that looks and functions like WinXP?" or was there more to it?

The link at the bottom right does mention that it was "user edited" but that could be some generic message and clicking on the "Kimi Agent" seems to just put me in an empty chatbot.