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Introduction Building a frame is a complex task, even though frames are perfect for community interaction. Additionally, users can only join the frames you build, necessitating multiple frames for various raffles. Why Lucky Summer? As a project owner or community member of a specific token, you can create an on-chain customized raffle for any ERC-20 with just a few clicks. 🛠 Customizable Parameters Number of raffle winners Reward per winner Number of raffle participants Required follows for participation ERC-20 address How It Works It begins with a main frame available at https://summer-luck.vercel.app/ Approve the raffle factory contract's spending. Specify parameters in the Factory contract via the UI. After successful contract creation, the app provides: Raffle contract address Frame URL Share the Frame URL on Warpcast. Users with verified addresses who follow the specified caster can join. Once conditions are met, the raffle ends, and prizes are distributed. Raffle can't end within 24 hours if the target user count isn't reached. If the target is met, the last user finishes the lottery. After 24 hours, if the target isn't met, the host can end the raffle. Lucky Summer uses Pyth Entropy (https://pyth.network/entropy) to determine the winner, with the last user paying the fee. On-Chain Follower Verification A signature verification algorithm via frames.js hooks checks follower status on Warpcast. If a user follows the caster, a signature is generated and sent to the contract for verification. A valid signature allows the user to join the raffle. FAQ Why pay an extra fee? The incentive: the host deploys 0.00075 ETH to the Raffle contract, including a 0.0005 ETH incentive. What if the host doesn’t finish the lottery? The host pays 5% extra ERC-20 tokens and gets this amount back when the lottery ends.