Wanted to add some additional context and thoughts. Feel free to ignore this comment if you think it's irrelevant.

The previous value, eslint+prettier, was more explicit, but I can understand why the name was changed.

With that being said, it's not obvious that by selecting eslint, prettier will be set up too. I do understand that it is mentioned in the Toolchain section below, but that could easily be missed. Perhaps a mention could be brought up a bit earlier on, next to the place where the valid values are mentioned? Something like:

--toolchain: Specify your toolchain solution for formatting/linting (biome, eslint). Note that by selecting eslint prettier will be configured too.

The same goes for the project scaffolding flow in the CLI. The result would be more obvious if instead of ESLint say, f.e., ESLint + Prettier option would be provided.