We’re inviting developers from the Solana community to take part in our “Build Everyday Real-World Systems as On-Chain Rust Programs” Challenge <h3 class="heading-node">Your Task 🛠️</h3>Take a system used in everyday life and build its core logic as a Solana program written in Rust.The goal is to leverage the core advantages of blockchain - such as permissionlessness, token infrastructure, and trustlessness - and focus on systems that genuinely benefit from being built on-chain, rather than forcing existing traditional systems onto it. This challenge aims to showcase practical daily use cases that put the highest weight on perfecting a minimal solution with zero feature-creep. <h3 class="heading-node">Task Description 💻</h3>Choose ONE everyday life system and implement its core logic as a Solana program.Example systems include (but are not limited to):<ul class="list-node"><li>Ticketing system (enabling a fair secondary market via tokenized tickets or NFTs)</li><li>P2P asset rental engine (trustless security deposits for daily items)</li><li>Decentralized loyalty and rewards ledger for local businesses</li><li>Shared housing utility and split-billing coordination engine</li><li>Time-banking tokenized local service exchange ledger </li></ul><h3 class="heading-node">Scope Detail ⚙️</h3>Architecture design - translate an everyday real-world scenario into Solana’s account model&nbsp;Program development - implement logic using Rust (Anchor or native SDK)&nbsp;System thinking - demonstrate how permissionlessness, token infrastructure, and trustlessness solve daily friction&nbsp;Practical usability - make the system testable and understandable for other developers <h3 class="heading-node">Mandatory Requirements 📩</h3><ul class="list-node"><li>Rust (Anchor or native SDK)</li><li>On-chain program deployed to Devnet</li><li>Public GitHub repo</li><li>Architecture explanation included in README:<ul class="list-node"><li>How this friction works in traditional systems</li><li>How this works on Solana</li><li>Tradeoffs &amp; constraints</li></ul></li><li>Devnet transaction links</li><li>Testable publicly deployed/shared basic client (minimal frontend or CLI)</li></ul><h3 class="heading-node">Judging Criteria weight 🏆</h3>Submissions will be evaluated based on:Practicality and originality 30% &nbsp;Architecture &amp; account modeling 25%UX / client usability 10%&nbsp;Code quality &amp; Rust patterns 20%&nbsp;Correctness &amp; testing 15%&nbsp;<h2 class="heading-node">Rewards 💰</h2>1st Place: 500 USDC2nd Place: 300 USDC3rd Place: 200 USDC

Build everyday real-world systems as on-chain Rust programs