The Bitcoin ecosystem is undergoing a renaissance, driven by innovative infrastructure and a new wave of developer creativity. At the heart of this transformation is ODIN•FUN, a groundbreaking project that has captured global attention with its seamless meme-launch experience and transaction speeds outpacing even Solana. This resurgence isn't just about one successful application—it signals the beginning of a broader movement to expand Bitcoin’s utility beyond simple transfers.
Emerging as a powerful enabler behind this evolution is the Internet Computer Protocol (ICP), which has quietly built a robust foundation for native Bitcoin applications. By combining high security with exceptional user experience, ICP offers developers the tools they need to build scalable, efficient, and truly decentralized Bitcoin-based DApps—both on Layer 1 and Layer 2.
To accelerate this momentum, Omnity Network, ICP Hub China, and RunesCC are co-hosting a hands-on technical event in Hong Kong: “Build The Next Odin.Fun” – A Bitcoin Developer Technical Salon. This gathering brings together top minds in the space to explore how the next generation of Bitcoin innovations can be built using cutting-edge frameworks like REE and DPS.
Why This Moment Matters for Bitcoin Developers
Bitcoin has long been seen as the digital gold of the crypto world—but its potential extends far beyond store-of-value use cases. With new execution layers and interoperability solutions, developers now have the tools to unlock DeFi, gaming, NFTs, social apps, and more directly on Bitcoin.
What makes this moment unique is the convergence of three key trends:
- The rise of Runes protocol, enabling efficient token issuance on Bitcoin.
- The launch of REE (Runes Exchange Environment), a Turing-complete execution layer natively integrated with Bitcoin.
- The power of ICP’s Chain Fusion technology, allowing secure, fast, and scalable smart contract execution.
Together, these innovations create an unprecedented opportunity: building high-performance Bitcoin applications without sacrificing decentralization or security.
👉 Discover how to build scalable Bitcoin DApps with advanced execution layers
Event Agenda: A Deep Dive into Bitcoin Innovation
13:30 – 14:00
Check-In & Open Networking
Developers arrive and connect with peers, project leads, and ecosystem contributors. An ideal time to exchange ideas, share challenges, and explore collaboration opportunities within the growing Bitcoin and ICP communities.
14:00 – 14:30
Technical Talk: Chain Fusion Stack Deep Dive
Paul, a cryptography scientist from the Dfinity Foundation, will present the core components of ICP’s Chain Fusion technology stack. This session will explain how ICP securely bridges external blockchains like Bitcoin through reverse DNS integration and threshold cryptography—enabling real-time data synchronization without relying on traditional oracles.
Attendees will learn:
- How Chain Fusion enables trustless cross-chain communication.
- The role of subnet blockchains and threshold ECDSA in securing asset transfers.
- Why this architecture is ideal for building responsive, low-latency Bitcoin applications.
This foundational knowledge sets the stage for understanding how advanced platforms like REE operate at scale.
15:00 – 15:10
Break & Networking
A short pause for refreshments and informal conversations. Use this time to follow up on earlier discussions or meet new collaborators.
15:10 – 15:50
Workshop 1: Building Bitcoin L1 DApps with ICP-REE
Julian, co-founder of Omnity Network, leads a live coding demonstration showing how to develop a functional Bitcoin Layer 1 DApp using the ICP-REE framework.
Key topics covered:
- Connecting Bitcoin’s UTXO model with ICP smart contracts.
- Triggering on-chain logic via native Bitcoin transactions.
- Designing user-friendly interfaces that abstract complex signing workflows.
Participants will see firsthand how REE allows developers to treat Bitcoin as a full-fledged programmable blockchain—without requiring sidechains or bridges.
16:00 – 16:40
Workshop 2: Building Bitcoin L2 DApps – A Game Development Case Study
Bob, core developer at Omnity, takes the stage to demonstrate the creation of a complete Bitcoin-powered casual game running as a Layer 2 DApp.
Using REE’s capabilities, the demo will showcase:
- Real-time state updates powered by ICP’s sub-second finality.
- In-game asset minting via Runes protocol.
- Seamless wallet interactions using decentralized PSBT signing (DPS).
This workshop highlights how performance-intensive applications—like games—can thrive on Bitcoin when paired with scalable execution environments.
👉 Explore high-speed blockchain development environments for next-gen DApps
Understanding REE: The Future of Bitcoin Execution
REE (Runes Exchange Environment) is a Turing-complete, cross-chain-free execution layer designed specifically for Bitcoin. Launched on February 8, REE integrates Bitcoin’s native transaction mechanics with ICP’s smart contract functionality, making it a universal DeFi and application platform on Bitcoin mainnet.
Unlike traditional Layer 2 solutions that rely on external validators or optimistic rollups, REE operates without introducing trust assumptions. It leverages ICP’s Chain Fusion to listen to Bitcoin events in real time and execute logic off-chain—while keeping all critical operations anchored to Bitcoin’s security model.
Core Advantages of REE:
- Full compatibility with Runes and BRC-20 tokens.
- Sub-second transaction finality thanks to ICP’s high-speed consensus.
- Native support for complex DeFi primitives like swaps, lending, and automated market makers.
- No need for wrapped assets or bridging risks.
Developers can now build applications where users interact directly with Bitcoin—no intermediaries, no compromises.
DPS: Decentralizing Transaction Signing on Bitcoin
DPS (Decentralized PSBT Signing) introduces smart contracts as active participants in Bitcoin transactions. Instead of users manually collecting UTXOs and signing inputs, DPS uses always-online smart contracts to dynamically assemble and sign PSBTs (Partially Signed Bitcoin Transactions).
This innovation solves one of the biggest UX hurdles in Bitcoin development: complex wallet interactions and multi-step signing processes.
How DPS Works:
- A user initiates a transaction request (e.g., swap tokens).
- A smart contract identifies required UTXOs and constructs the PSBT.
- The contract signs its portion using threshold ECDSA.
- The user signs their input via their wallet.
- Final transaction is broadcast to Bitcoin network.
Because the smart contract acts as a reliable counterparty, DPS enables features like:
- Atomic swaps across assets.
- Gasless transactions (sponsorable by dApps).
- Automated order matching in decentralized exchanges.
It opens the door to Solana-like user experiences while preserving Bitcoin’s security and decentralization.
Frequently Asked Questions (FAQ)
Q: What is REE and how does it differ from other Bitcoin scaling solutions?
A: REE is a native execution layer that combines Bitcoin’s transaction system with ICP smart contracts. Unlike rollups or sidechains, it doesn’t require asset bridging or trust in external validators—making it secure, fast, and fully aligned with Bitcoin’s philosophy.
Q: Can I build non-financial apps like games or social networks with REE?
A: Absolutely. REE supports any application logic, including gaming economies, social tokens, DAOs, and NFT marketplaces—all powered by real Bitcoin transactions.
Q: Do I need to understand UTXO mechanics to develop on REE?
A: While basic knowledge helps, REE abstracts much of the complexity. Tools like DPS handle PSBT construction and signing automatically, so developers can focus on product logic.
Q: Is prior experience with ICP required?
A: Not necessarily. ICP provides developer-friendly tools and documentation. If you’re familiar with Rust or Motoko, you can start building quickly.
Q: How does Chain Fusion ensure security when interacting with Bitcoin?
A: Chain Fusion uses threshold cryptography and decentralized subnet blockchains to verify Bitcoin blocks in real time—without relying on centralized gateways or oracles.
Q: Where can I access development resources for REE?
A: The official REE whitepaper and SDKs are publicly available for developers looking to experiment or launch production-ready apps.
👉 Access developer tools for building on next-generation blockchain platforms
Final Thoughts: Seizing the Bitcoin Renaissance
The success of ODIN•FUN proves that there’s massive demand for fast, fun, and functional applications on Bitcoin. But it’s only the beginning. With infrastructure like REE, DPS, and Chain Fusion, developers now have everything needed to build the next wave of breakthrough projects.
Whether you're focused on DeFi, gaming, identity, or social protocols—the tools are here. The community is growing. And the spotlight is back on Bitcoin.
Join the movement. Build the next Odin.Fun.