Appreciate the welcome, Brendan! Honestly the waitlist piece was the fun part to build. It's polling-based (learned the hard way that relying purely on webhooks bites you), matches against a queue, gives each person a time-boxed window to claim the slot before it rolls to the next in line. I'm actually turning this into a real product for salon/spa and HVAC businesses right now, so I'll keep the workflow itself under wraps for the moment but always down to nerd out on the architecture side. Glad to be here!