F

foundry

Cross-chain messaging with LayerZero V2 and Chainlink CCIP adapters, anti-spoofing and anti-replay. Module 16.

Resilient price consumer with staleness, round and bounds checks; push vs pull feeds compared. Module 13.

ERC-20 token with EIP-2612 permit, fuzz tests and gas snapshots. Module 01 of a Foundry suite.

Dark pool with Poseidon commitments, on-chain ZK matching and atomic settlement in a shielded vault. Module 21.

Institutional custody vault: M-of-N EIP-712 approvals, ERC-1271, spending limits, timelocked recovery. Module 20.

Real-world asset tokenization with ERC-3643: identity, transfer restrictions and address freezing. Module 19.

stETH/wstETH-style liquid staking: rebasing shares, wrapper, oracle and async withdrawal queue. Module 18.

Educational privacy pool: Poseidon Merkle tree, Circom/Groth16 withdrawals and nullifiers. Module 17.

MEV/HFT searcher infrastructure: atomic arbitrage, backrun, Yul tips and SWC review. Module 15.

Uniswap v3-style concentrated liquidity: ticks, Q64.96 math, tick bitmap, multi-tick swaps. Module 14.

ERC-4337 smart account, signature validator and sponsoring paymaster with EntryPoint-only auth. Module 12.

Upgradeable contracts: UUPS and Transparent proxies (ERC-1967) with upgrade safety tests. Module 11.

On-chain governance with checkpointed voting power, full proposal lifecycle and a timelock. Module 10.

Lock/mint and burn/unlock bridge with EIP-712 proofs, N-of-M relayers and anti-replay. Module 09.

Flash loans and atomic arbitrage execution with attack tests. Module 08.

Single-asset vault with LP shares, proportional fees (UD60x18), anti-inflation guard and lock time. Module 07.

Constant-product AMM (x*y=k) token swap with SWC audit matrix and gas analysis. Module 06.

NFT marketplace with secure escrow, ERC-2981 royalties, protocol fee and SWC review. Module 05.

Gas-optimized ERC-721 NFT collection with ERC-2981 royalties. Module 04.

Synthetix-style staking pool with O(1) rewards, dynamic lockup and SWC matrix, plus a Next.js demo. Module 03.