MindDrink - Track your BAC live with friends — and get home safe

Hey Product Hunt! 👋 I built MindDrink after one too many nights ending with "who's driving home?" and nobody knowing the answer. It's a free web app — open minddrink.app with your friends, create a shared table, and everyone's BAC updates live as the night goes on. The designated driver emerges automatically, and if nobody can drive there's a built-in ride sharing system. No sign-up, no download. Works on any phone. Would love to hear your feedback — especially from anyone who's been in that "who's driving?" situation 🚗🍷