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I Broke Production 3 Times: Smart Contract Deployment Mistakes You’re Making
I’ll never forget the feeling. Our newly deployed staking contract was live. Users were depositing funds. Then the messages started flooding in:
“Where’s my money?”
“I can’t withdraw!”
“The contract ate my ETH!”
I had broken production. Again. This was the third time I’d deployed a buggy contract to mainnet.
After losing sleep, user trust, and thousands in gas fees, I finally built a deployment process that actually works. Here are the mistakes I made — and how you can avoid them.
💥 Mistake #1: The “It Works on Testnet” Fallacy
What I did: Deployed to mainnet because “it worked on Goerli.”
What went wrong:
// Testnet worked fine
function claimRewards() external {
require(block.timestamp >= claimTime, "Too early");
// ... logic
}
// Mainnet disaster: users couldn't claim for 30 days
uint256 public claimTime = block.timestamp + 30 days;
Market Opportunity
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