I need this https://www.reddit.com/r/Bitcoin/comments/13afo1w/lightning_door/?utm_source=share&utm_medium=ios_app&utm_name=ioscss&utm_content=1&utm_term=1
Its interesting. But there are current systems that work better for entry. PKI comes to mind.
This could work for a movie theatre, or gym... Parking... Ect
One problem I see is... No WiFi, no entry. What happens when the internet goes down?
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