I'm capturing Core Web Vitals data from visitors to my site and sending it to Supabase. I then pull this data back from Supabase into my dashboard page and display it in various data visualisations.
I'm making use of the Supabase database, API and PostreSQL functions.
I'm going to keep adding more visualisations to make it easy to understand the user experience on my site. I'd be keen to turn this into a SaaS product if other people would like to capture this data for their sites.