Compass Coffee in Washington, D.C. has begun accepting Bitcoin payments through Square's Lightning Network, marking a significant step in integrating cryptocurrency into everyday transactions. Launched during the city's fintech week, the service enables customers to pay by scanning a QR code at Square terminals, with transactions settling instantly in Bitcoin. Co-founder Michael Haft reported successful transactions from ten different wallets, highlighting the potential for digital assets in small business operations. The service allows merchants to convert up to half of their daily sales into Bitcoin without fees for the first year. This initiative is part of Block's broader crypto ecosystem, which includes Cash App and Bitkey wallet, and is seen as a pivotal move towards making Bitcoin a viable payment method.