AI chatbot over DNS
An experimental chatbot accepts conversational requests as DNS lookups, trading a familiar interface for DNS-sized questions and answers.

This experiment puts an AI chatbot behind DNS queries, with the travel use case of being on a flight. A DNS client becomes the conversational interface.
The example is a useful endpoint for the collection: a DNS answer can be more than a small lookup result when the service behind it is willing to keep state and compress its replies.
Primary source: https://ch.at/