Francis Mars
Software engineer
Software engineer
Francis is a software engineer passionate about building practical tools with real-world impact. His projects include Chain Duel, a Lightning-powered videogame that gamifies Bitcoin payments, and PubPay, a simple way to split payments or receive donations via Nostr. He focuses on creating open-source projects that are both useful and accessible to the wider community. Beyond code, he actively contributes to Bitcoin adoption and education, often traveling to conferences and communities worldwide. Whether on stage, or in casual conversations, he brings a positive energy to Bitcoin, Lightning, and Nostr education. As both a builder and an ambassador of permissionless tech, he works to make complex ideas tangible, exciting, and fun—showing that Bitcoin is not only powerful, but practical for everyday life.