Mostly procrastination with a login screen" is painfully accurate. I'm a solo founder on Supabase and the pull to build a dashboard is real. The activation-gap query is the one I'd steal first. For a free product with no payments, it's really the main health metric: signed up but never finished the one thing they came for. Did you find the read-only role plays nicely with Supabase's SQL editor, or do you run these from psql/TablePlus instead?