WebPerfWG call - September 12th @ 8am PT/11am ET/5pm CET

Hey folks!

Let's get together tomorrow to talk webperf!
On the agenda
<https://docs.google.com/document/d/10dz_7QM5XCNsGeI63R864lF9gFqlqQD37B4q8Q46LMM/edit#heading=h.gnajznexy2px>
we have a followup discussion to last time, where we'd continue to discuss
the API shape for the `confidence` attribute, as well as a discussion on
moving from first-input to first-interaction.

See y'all there <https://meet.google.com/agz-fbji-spp?authuser=0>!

Cheers :)
Yoav