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Keyosk

Have you ever lost your key?

greeN

Sustainability behavior quantization together with NFT.

GoingDutch

When people want to split a bill at a some place (e.g. a restaurant), usually a single person has to pay as a lot of places do not offer to split the bill. Someone has to defray the costs for the entire group. This places a big burden on this person and this person has to make sure he receives his money.