Judges submit hidden scores that are revealed together so nobody copies others
Intermediate16h2–3
SolidityFoundryNext.js
18/20#solidity hackathon ideas
9 ideas across 1 category · 3 beginner · 4 intermediate · 2 advanced. Sorted by judging fit (editorial estimate).
Ideas tagged solidity
Run a rotating savings circle with transparent rules in a smart contract
Advanced26h2–3SolidityFoundryWagmi17/20Run transparent elections where each member votes once
Beginner10h1–2SolidityScaffold-ETHNext.js17/20Backers get automatic refunds if the goal is not reached
Intermediate16h1–2SolidityFoundryWagmi17/20Practise fixing real vulnerability patterns with instant feedback
Intermediate16h1–2FoundrySlitherLLM17/20Paste an ABI and get a working admin panel for the contract
Beginner10h1–2Scaffold-ETHWagmiNext.js17/20Check an upgradeable contract change for storage layout breaks
Advanced22h1–2FoundryOpenZeppelinNode.js16/20Compete to solve challenges with the least gas
Intermediate14h1–2FoundryNext.jsPostgres16/20Visitors sign a permanent guestbook at an event
Beginner6h1SolidityScaffold-ETH16/20