SignUpSheet.page: Free sign-up sheets & polls — no ads, no accounts

Hey Product Hunt! 👋 I'm Mendy, maker of SignUpSheet.page. Every school potluck, volunteer shift and team dinner I've been part of ran through a sign-up site that showed ads to everyone, made people create accounts, or locked basic things like waitlists behind a paywall. Or it was a group chat where five people brought chips. So I built the version I wanted: • One link, works on any phone. Guests tap a slot and type their name. No app, no password. • Slots close when full. Every sign-up is checked on the server in one step, so even two people tapping at the same second can't double-book. • Automatic waitlist. When someone cancels, the next person moves up and gets an email. • A reminder the day before, Google/Apple/Outlook calendar buttons, and CSV export. • Group polls (yes / maybe / no) when you need to pick a date first. • 16 ready-made templates: Thanksgiving potluck, volunteer shifts, parent-teacher conferences, snack schedules, meal trains, carpools and more. • Private by design: sheets aren't indexed, emails are never shown publicly, nothing is sold. It's free, with no ads. I'd love your feedback — what would make this the sign-up tool you'd send to your kid's class or your volunteer group? 🙏