

Cadence Workshop
Bio:
Giovanni works on Flow as a Senior Smart Contract Engineer, contributing to the design and development of core onchain infrastructure and ecosystem contracts. Before joining Flow, he worked on smart contracts with Dapper Labs and was previously on Amazon's international expansion team.
LinkedIn:
https://linkedin.com/in/sanchezgiovanni
Description:
Dive into the fundamentals of building on Flow with Cadence in this hands-on workshop designed for both beginner and intermediate developers. Together, we’ll walk through the core concepts of Cadence—from writing your first “Hello World” smart contract on Flow to understanding Cadence’s unique resource-oriented programming paradigm. We’ll also explore how to quickly set up and deploy Flow apps, giving you a clear path from idea to implementation.
What You’ll Learn:
Hello World in Cadence
Get comfortable with Flow’s environment and deploy your first Cadence contract
Flow App Quickstart
Follow a step-by-step guide to setting up a Flow application, exploring the best practices for configuring and running your dApp.
Resource-Oriented Programming
Delve into Cadence’s powerful resource-centric model and learn why it’s a game-changer for Web3 development.
Advanced Techniques
Learn about how you can create complex apps with seamless UX with Flow's unique transaction model and protocol level account abstraction.
By the end of this workshop, you’ll have a solid understanding of Cadence, practical skills for deploying on Flow, and the confidence to experiment with resource-oriented patterns in your own projects. Whether you’re completely new to smart contracts or eager to expand your existing skill set, this workshop offers a comprehensive, hands-on introduction to Cadence on Flow. Bring your laptop, your curiosity, and let’s start building!
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Your Quest Awaits
From February 23rd to March 1st, Denver's famous Castle Marne becomes the Flow Castle. A stronghold of innovation, creativity, and competition. By day, it’s an open co-working space where ideas are forged. By night, the gates open to thrilling side quests—panels, challenges, and events—all crafted to unite the Flow kingdom.
This isn’t just another gathering—it’s a full-scale takeover. Each day brings chances to forge alliances, test your skills, and push boundaries. Whether you’re here to build, compete, or leave your mark, the castle is where legends rise. Check out the schedule below and prepare for an unforgettable siege.
theflowcastle.com
Mon-Fri
8:30 AM - Voodoo Donuts on us!
Voodoo Donuts
1520 E. Colfax Ave.
Denver, CO 80218
9:30 AM - Co-working begins!
(see below for scheduled events)
MONDAY (FEB 24) --------------------------------
Cadence Workshop
Dive into Cadence—the resource-oriented programming language for Flow—in this hands-on workshop that takes you from writing your first “Hello World” to deploying a fully functional Flow dApp. Learn the fundamentals, best practices, and advanced techniques so you can confidently create secure, scalable applications on Flow.
📅 Date: February 24
🕘 Time: 02:00 PM - 03:00 PM
🔗 Event Link (Sign up via this link)
WEDNESDAY (FEB 26) ----------------------------
thirdweb @ Flow Castle
Come meet the thirdweb team and learn how to build full-stack apps on Flow!
This will be a casual, interactive demo session for developers looking for better ways to build onchain with thirdweb and Flow. Plus, we'll be sharing interactive demos of new and unreleased tooling 👀
📅 Date: February 26
🕘 Time: 10:00 AM - 11:00 AM
🔗 Event Link (Sign up via this link)
Consumer Product Development: The Community-Powered Approach
Join us for an interactive workshop and brainstorming session focused on crafting exceptional consumer products (Web3 and beyond) and leveraging your community for success!
📅 Date: February 26
🕘 Time: 02:00 PM - 03:00 PM
🔗 Event Link (Sign up via this link)
Build an on chain agent in 1 hour (coinbase developer platform + flow)
We will have an AgentKit intro and then a 1-2 hr competition to see who can launch the most useful agent after the workshop with it.
📅 Date: February 26
🕘 Time: 03:30 PM - 06:30 PM
🔗 Event Link (Sign up via this link)
THURSDAY (FEB 27) -------------------------------
Set It and Bet It: Self-Resolving Roulette on Flow EVM
We want to tell you about a really cool approach that we had to take while building roulette on FlowEVM.
This talk will be technical, but approachable. Newbs are welcome!
TL;DR, Commit reveal scheme with owenerless onchain random that creates a system where no actor is spinning the wheel, in effect it always has been spun.
📅 Date: February 27
🕘 Time: 12:00 PM - 01:00 PM
🔗 Event Link (Sign up via this link)
Sudocat Gaming Session
🎮 SudoCat Gaming Showdown @ ETH Denver! 🚀
Join us for an electrifying SudoCat Gaming Session at ETH Denver, where play meets trade, and earning gets real! 🏆💰
📅 Date: February 27
🕘 Time: 01:00 PM - 02:00 PM
🔗 Event Link (Sign up via this link)
Regenerates in Defi
Explore strategies and challenges in creating more regenerative DeFi mechanisms and primitives
📅 Date: February 27
🕘 Time: 02:00 PM - 03:00 PM
🔗 Event Link (Sign up via this link)
The Intersection of DeFi and Consumer Applications
The Intersection of DeFi and Consumer Applications
Join Flow Blockchain, aiSports, More.Markets, and KittyPunch for an insightful panel exploring how DeFi powers consumer blockchain applications. Discover how DeFi infrastructure drives token value, enhances engagement, and fosters Web3 communities—bridging the gap between finance and real-world user experiences.
📅 Date: February 27
🕘 Time: 03:00 PM - 03:30 PM
🔗 Event Link (Sign up via this link)
Crypto U: Building the Future of Blockchain Education
Join us for Crypto & Academia: Bridging Education and Innovation, gathering at ETHDenver 2025, where university leaders, researchers, and blockchain pioneers will come together to explore the role of education in driving the future of crypto.
📅 Date: February 27
🕘 Time: 04:00 PM - 05:00 PM
🔗 Event Link (Sign up via this link)
FRIDAY (FEB 28) ----------------------------------
Rekt & Reflect
Join Flow, Olympix, and the rekt for an exclusive brunch panel at the Flow Castle (10-11 AM), where we serve coffee, pastries, and the most brutal DeFi horror stories.
We’re dissecting some of the biggest, most catastrophic hacks in DeFi history - the exploits that drained millions, left protocols scrambling, and even brought in Interpol, FBI agents, and private investigators (yes, even hitmen were involved).
📅 Date: February 28
🕘 Time: 10:00 AM - 11:00 AM
🔗 Event Link (Sign up via this link)
From 0-1, How to Kickstart Your MVP
Ready to build and launch your MVP with minimal hassle? In this hands-on workshop, hackers and startup teams will learn the essential steps to go from zero to a functional prototype—covering core features, lean validation strategies, and practical tools to get a product off the ground fast that acquires real users and is investment-ready.
📅 Date: February 28
🕘 Time: 01:00 PM - 02:00 PM
🔗 Event Link (Sign up via this link)
Build EVM Apps with Automatically Sponsored Gas on Flow with Privy
Brian merges learning, gaming, and programming to introduce the world to the magic of Flow Cadence and Flow EVM. A seasoned educator, he has previously built Base Learn and taught computer science at bootcamps and universities, always focusing on hands-on, practical experiences.
📅 Date: February 28
🕘 Time: 03:00 PM - 04:00 PM
🔗 Event Link (Sign up via this link)
Crypto Policy at the Castle
Join us for Crypto Policy at the Castle, an exclusive invitation-only dinner and fireside chat at EthDenver 2025, where 30 of the most influential leaders shaping crypto policy will gather for an evening of insightful discussion, strategic networking, and fine dining in an intimate, historic setting.
📅 Date: February 28
🕘 Time: 05:00 PM - 07:00 PM
🔗 Event Link (Sign up via this link)
SATURDAY (MAR 1) -------------------------------
BUIDL Day @ ETHDenver Powered by DoraHacks
BUIDL DAY is a premier one-day event designed to showcase the most original and contrarian startup teams in the Web3 industry. Hosted by DoraHacks on March 1st in Denver, this flagship gathering will bring together founders, builders, investors, and ecosystem leaders to collaborate, pitch, and explore groundbreaking innovations.
📅 Date: March 1
🕘 Time: 11:45 AM - 12:15 PM
🔗 Event Link (Sign up via this link)