HackMeridian 2026 is a developer-focused hackathon held as part of Meridian 2026 in Abu Dhabi, United Arab Emirates. Organized by the Stellar Development Foundation, the hackathon takes place at the Yas Marina Circuit from October 19–20. The event is designed for developers building on the Stellar network, with teams working on practical financial applications and infrastructure-focused use cases ahead of the main Meridian conference.