Bitcoin and Bitcoin Lightning Integration Discussion

# Bitcoin and Bitcoin Lightning Integration Discussion Date/Time: July 23, 2025, 14:16 EAT ## Overall Summary Anton and Emin discussed integrating Bitcoin and Bitcoin Lightning with crypto debit cards, focusing on user experience, technical challenges, and business strategy. They emphasized seamless crypto-to-fiat transactions, biometric security, and targeting the German market initially, with plans for scaling globally\:hiveTranscript. ## Key Points * Bitcoin and Bitcoin Lightning are both central to the conversation, with Lightning experiencing exponential growth through multiple implementations and new business models like liquidity provision and microtransaction fees\:hiveTranscript. * The user experience aims to be as simple as traditional banking apps, with biometric authentication and passkeys replacing passwords and PINs\:hiveTranscript. * Two funding models discussed: pre-funding (user tops up card with crypto converted to fiat) and just-in-time funding (automatic conversion at transaction time), with pre-funding being simpler to implement initially\:hiveTranscript. * The integration requires handling multi-state transactions on blockchain with escrow and pre-authorization to match traditional card payment flows\:hiveTranscript. * Initial market focus is Germany with plans to scale to 5,000 users quickly and expand globally, leveraging Jan's existing user base and networks\:hiveTranscript. ## Action Items * Anton to evaluate the best technical approach for integration and follow up with Jan in a few days. * Jan to share a video demonstrating the current app flow for user experience feedback. * Both parties to schedule a follow-up call to refine the integration plan and discuss feedback. ## Open Questions * How to best implement escrow and pre-authorization for Bitcoin transactions to align with card payment standards. * What additional SDK or wallet support is needed for seamless Bitcoin Lightning integration. * How to ensure the user experience remains simple for non-technical users while integrating complex blockchain processes.