let's you create / print physical #cashu notes that you can hand out nostr:nevent1qqsd9nuw7v9pznxafgxaeu68wpql09knphulw6jgzzspfqqmwankw5cpr3mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmqzyrzt2d56nke85tsme9ajt74ysckelna8gagxk8e89785kd4cztdavqcyqqqqqqgntxyye