An ephemeral app can be hallucinated on demand, or one called from the ether based on something that is known to have worked for other users in the past.

Most hallucinated ephemeral apps are not very good.

Conjuring up an ephemeral app covers both fetching one from the ecosystem that's been found to be good in the past, or falling back on hallucinating one on demand.

This allows ratcheting up in quality; LLMs as the floor.

The LLM doesn't have to get it right all the time; it has to get it right some of the time, and then humans in the loop help sift through to find the good ones.

An ecosystem of reusable and safe artifacts.

Ephemeral apps... that you can trust