[krono]

Right around the time when Vercel introduced their performance analytics upsell service, they deleted the NextJS documentation on "web vitals" gathering - same thing, but without the service.

Then again when they introduced their new Image component for the longest time it would by default use Vercel's paid image optimisation services, eventually it could be disabled but only with some weird and poorly/confusingly documented custom configuration entry.

There are more instances of similar such questionable actions by the NextJS maintainers. I'd rather have seen them just be open about what drove them to do these things.

[radicalriddler]

The image one was what I had in mind as well. Looks like they've updated the documentation with code snippets to help people out a little more, but back when I first did it, those docs were SLIM