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Whiteboard Dapp with Solana Onchain and Squad Protocol Collaboration

Inspiration

The inspiration for this project came from the need for collaborative, real-time tools that leverage the power of blockchain technology. We wanted to create a decentralized application (dapp) where users can brainstorm, draw, and share ideas in a secure, transparent, and immutable way. By integrating Solana's high-speed blockchain and the Squad protocol for multi-user management, we envisioned a collaborative whiteboard that truly belongs to its community.

What it does

The Whiteboard dapp enables multiple users to draw, sketch, and leave notes on a shared digital canvas in real time. All actions are recorded on the Solana blockchain, ensuring transparency and verifiability. The Squad protocol is integrated to facilitate collaborative ownership, permission management, and collective decision-making, making the whiteboard a shared asset governed by its users.

How we built it

• Frontend: Built with React and TypeScript, providing an interactive UI for drawing and collaboration.
• Solana Integration: Used Solana's web3.js and Anchor framework for connecting the dapp to the blockchain, storing actions as onchain transactions.
• Squad Protocol: Integrated the Squad protocol to manage multi-signature ownership, permissions, and collaborative features.
• Canvas Engine: Leveraged HTML5 Canvas with optimizations for real-time updates and onchain event synchronization.
• Backend (if any): Minimal serverless functions to facilitate wallet connections and relay onchain events, while keeping the core logic decentralized.

Challenges we ran into

• Ensuring low-latency, real-time collaboration while persisting data onchain.
• Managing transaction costs and optimizing for Solana’s block times.
• Integrating Squad protocol smoothly with the whiteboard’s permission system.
• Handling concurrent drawing updates and resolving conflicts in a decentralized setting.
• Providing a user-friendly experience while maintaining blockchain-level security.

Accomplishments that we're proud of

• Achieved seamless real-time collaboration with onchain persistence.
• Successfully integrated Squad protocol for decentralized, shared governance.
• Built an intuitive interface that abstracts away blockchain complexities for end users.
• Created a framework that can be extended for other collaborative dapps on Solana.

What we learned

• Deepened our understanding of Solana’s architecture and transaction flows.
• Gained experience with collaborative dapp design and conflict resolution techniques.
• Learned best practices for integrating multi-signature and permission protocols like Squad.
• Understood the trade-offs between decentralization, UX, and cost.

What's next for Whiteboard

• Adding advanced drawing tools and support for multimedia content.
• Enabling NFT minting of whiteboard sessions for provenance and sharing.
• Implementing more robust onchain data compression and conflict resolution.
• Expanding integration with other Solana protocols and collaborative primitives.
• Building mobile-friendly interfaces and expanding to more use cases (education, creative jams, DAOs).

Built With

• solana