Memetropolis
Founder and CTOThe first OFT launchpad on LayerZero, live across 7 EVM chains. About $300K invested, 810 commits, 5,000 users at launch, and concurrency that holds when two users hit the same second.
The problem
Launching a token on one chain is a solved problem. Launching the same token across 7 chains at once, with liquidity and state that stay coherent, is not.
The build
The first OFT launchpad on LayerZero: Solidity contracts, TypeScript backend, subgraph indexing, Next.js frontend. Multi-chain peer wiring, per-chain gas configuration, Etherscan verification on every chain.
The hard part
Concurrency. Two users hitting the launchpad in the same second used to mean colliding nonces and stranded funds. The fix that held: Postgres advisory locks plus per-address chain locks plus fresh-fetched nonces. Not naive sequential signing.
Outcome
About $300K invested, 810 commits, 5,000 users at launch, live across 7 EVM chains.
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