Building a Calendly alternative on the side: 14 features in one day with Claude

Why I'm building OneSlate Calendly is great if you're a freelancer with one calendar. It breaks if you're an executive with shared calendars from your team — which is exactly my situation. I run a small company and have shared calendars from ~10 colleagues. When I create a Calendly link, every "shared" event gets treated as my own busy time. The result: my Calendly booking page often shows zero available slots. People who try to schedule with me give up. I've had to manually email back-and-forth