From Smart Contract Hell to JavaScript Solace: Building ArdhiChain for a 36-Hour Hackathon

Benjamin Koimett Posted on May 31 From Smart Contract Hell to JavaScript Solace: Building ArdhiChain for a 36-Hour Hackathon # web3 # hackathon # javascript # ai --- title : " From Smart Contract Hell to JavaScript Solace: Building ArrdhiChain for a 36-Hour Hackathon" published : true description : " How I survived Polygon Amoy testnet failures, gas estimation nightmares, and a Friday 5 PM MVP deadline by finding peace in vanilla JavaScript and optimistic UI." tags : [ web3 , hackathon , javascript , polygon , solidity , devjournal ] --- Enter fullscreen mode Exit fullscreen mode In the beginning... Timeline: Thursday 8 AM to Friday 5 PM MVP deadline. Pitches started Friday 11 AM (yes, while I was still debugging). Sanity level: Negative. Outcome: Shipped. Barely. This past Thursday to Friday wasn't a 72-hour marathon. It was a 36-hour sprint where the smart contracts tried to break me, the Polygon Amoy testnet played games, and JavaScript became my unexpected sanctuary. Here's the raw, unfiltered story of building ArrdhiChain - a web3 dApp - under hackathon conditions that felt designed to cause panic attacks. Thursday Morning: The Overconfidence Phase The hackathon kicked off Thursday at 8 AM. MVP needed by Friday 5 PM . Pitches started Friday 11 AM (meaning the judges would be circulating while I was still patching bugs). My idea: A decentralized app on Polygon Amoy testnet where users could interact with a custom smart contract. Simple. Elegant. Wrong. Thursday 9 AM: Smart contracts written in Solidity. Compiled flawlessly. I felt invincible. Thursday 10 AM: First deployment attempt. FAIL . Gas estimation errors. Network timeouts. MetaMask crying. Thursday 11 AM: Discovered I was on Mumbai testnet, not Amoy. Two hours gone. Classic. Lesson #1: The network dropdown is not your enemy. Ignoring it is. Thursday 2 PM: Finally got the contract live on Amoy: 🔗 0xYOUR_CONTRACT_ADDRESS I celebrated with cold coffee. Too soon. Thursday Night: The Web3 Integration Nightma