EAG Global Buildathon · Florianópolis, Brazil
EAG Global Buildathon · Florianópolis, Brazil
Timeline:
The EAG Global Buildathon journey continues in Florianópolis with Hackathon Day.
After two builder education sessions focused on Ethereum fundamentals, smart contracts, token standards and full-stack dApp development, it is time to turn ideas into prototypes.
This hackathon is designed to help local builders move from learning to building: forming teams, choosing a track, creating prototypes, receiving mentorship and presenting their projects.
Organized locally by ETH Floripa, with support from blockful, Infinity Base, LabSEC, Chainstack, UFSC and Ethereum Hub, EAG is bringing a full-day hackathon to local developers, students, founders, designers and curious builders interested in Ethereum-native applications.
Sponsored by HSK Chain, a compliance-friendly, institutional-grade blockchain designed to rebuild global financial markets on-chain.
Organized locally by ETH Floripa, an Ethereum builder community created by blockful and Infinity Base, the hackathon will be supported by specialist mentors across the project tracks and evaluated by a panel of 6 judges: 3 invited by ETH Floripa and 3 from EAG.
You do not need to arrive with a full team or a complete idea. You can join as a developer, designer, founder, researcher, product person or student interested in building something real with Ethereum.
Food and coffee will be available during the day.
🛠️ What will happen
Participants will:
form or join teams;
choose a project track;
build a prototype;
receive support from specialist mentors;
present their project;
connect with EAG’s global builder initiatives and the ETH Floripa community.
🧭 Project tracks
Builders can explore one of the EAG Global Buildathon tracks:
AI x Ethereum & Agent Economy
AI agents, agent wallets, agent payments, agent-to-agent coordination and Ethereum-native AI applications.Local AI, Private AI & User-Owned Data
Privacy-first AI applications, user-owned datasets, private credentials and selective disclosure.Smart Devices, Open Hardware & Privacy Hardware
Open hardware, device identity, crypto-integrated devices, secure hardware and Ethereum in real-world environments.Application Middleware & Open-Source Tooling
SDKs, wallet tooling, account abstraction, developer APIs, privacy SDKs, monitoring tools and reusable infrastructure.AI-Native Creator Economy & Digital Rights
Content provenance, attribution, programmable licensing, creator payments, digital rights and ownership in the age of AI.Real-World Ethereum Applications
Stablecoin payments, community coordination, education tools, public goods funding, reputation systems, local commerce and applications for emerging regions.
👥 Who should join
This hackathon is for:
developers and engineers;
Web2 developers curious about Ethereum;
Web3 builders;
computer science and engineering students;
design and product students;
designers interested in product and UX;
founders and entrepreneurs;
researchers and professors;
people interested in building real-world Ethereum applications.
🗓️ Agenda (TBD)
08:00 - 08:30
Check-in, breakfast and coffee08:30 - 08:45
Official opening
Welcome, partner acknowledgements, tracks, mentors, judges and prizes.08:45 - 09:15
Team formation and project setup
Participants form teams, choose a track and organize roles. We will also share a short Notion guide with tips on project scope, prototype, demo and submission.09:15 - 12:30
Build Sprint 1
Teams start building with support from specialist mentors.
12:30 - 13:30
Lunch break
13:30 - 14:30
Project check-ins
Each project gives a short 3–5 minute update to receive feedback and insights before the final sprint.14:30 - 16:15
Build Sprint 2
Teams continue building, refine the prototype and prepare their submission.17:00 - 18:00
Project presentations and submission
Teams present their projects and submit final materials by 18:00.18:30 onwards
Happy hour (venue: TBD)
🏆 Hackathon prizes
Planned prizes include:
Top 1 project: one scholarship to the ShanHaiWoo Residency, including 30 days in China with flight and accommodation support for one selected builder from the winning project, not the full team.
1st place: one year of the Chainstack Growth plan, so the winning team can keep building and scaling their project after the hackathon.
Top 2 projects: one ETH Floripa 2026 ticket per selected project.
HashKey Chain track: USD 500 prize for each selected winning project in the track.
All participants: free access to the Chainstack Growth plan for 3 months, through a coupon offered to hackathon builders.
Final eligibility and selection details will be shared with registered participants.
🎓 Before the hackathon
We recommend joining the builder education sessions before Hackathon Day:
Session 1
Ethereum fundamentals, wallets, gas, L2s, Web3 security concepts and DeFi components.Session 2
Solidity, token standards and full-stack dApp basics.
These sessions are not mandatory, but they will help participants arrive better prepared to build.
🌍 About EAG
The Ethereum Applications Guild (EAG) is a global non-profit collaborative organization dedicated to advancing the innovation, adoption, and real-world impact of Ethereum-native applications.
Through application acceleration, open co-creation, ecosystem partnerships, sustainable funding, and global events, EAG connects builders, institutions, and ecosystem stakeholders to foster the sustainable growth and broader reach of the Ethereum applications ecosystem.
🏝️ About ETH Floripa
ETH Floripa is a builder-first Ethereum community based in Florianópolis, Brazil, created by blockful and Infinity Base.
The community connects developers, founders, researchers, students and ecosystem contributors through curated events, technical conversations and local initiatives designed to strengthen Ethereum’s presence in Brazil.
Known as the Ethereum community from the Magic Island, ETH Floripa creates spaces for people who want to learn, build and contribute to the Ethereum ecosystem with depth, quality and real connection.