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Hardhat 是一个用于构建和部署以太坊软件的开发环境

Foundry 是一个用于以太坊智能合约工程的快速、便携的 Rust 工具链，它可以管理依赖项、编译 Solidity、运行模糊测试和单元测试、部署合约，并从终端或 Solidity 自动化脚本驱动脚本化的链上交互。

PoWFaucet is a modular testnet faucet for EVM chains with anti-abuse methods including a mining puzzle, captcha, IP limits, and Gitcoin Passport, and it backs the Sepolia proof-of-work faucet. Teams running a testnet self-host it to hand out test ETH without giving it all to one address.