A two-day hackathon in Lisbon for building products on Stellar.

HackMeridian is an in-person hackathon in Lisbon on 25 and 26 October 2026 where teams build on the Stellar network. It runs just before the Meridian conference.
HackMeridian is a two-day hackathon at ONE16 in Lisbon where developers, founders, designers and technical teams build working products on the Stellar network. It is tied to Meridian 2026, Stellar's annual conference, which follows in the same city on 28 and 29 October.
There are two tracks. Genesis is for new ideas and early prototypes, and Scale is for teams moving an existing product toward production. The organizers say prizes total up to $30,000 in XLM and that the top projects move forward to the Meridian conference.
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Genesis is for new ideas and Scale is for teams with an existing product.
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The organizers list up to $30,000 in XLM across the two tracks.
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Stellar engineers, technical mentors and product experts run workshops and office hours.
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Top projects go on to the Meridian conference two days later.
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