https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Sat, 16 May 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-05-16-web3-smart-contract-dev-2026-hardhat-foundry-solidity-cairo-starknet-anchor-solana-viem-wagmi-openzeppelin-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-web3-smart-contract-dev-2026-hardhat-foundry-solidity-cairo-starknet-anchor-solana-viem-wagmi-openzeppelin-deep-dive.en Web3 development in 2026 is no longer the world of "Hardhat + Truffle + web3.js". Paradigm's Foundry has become the de facto smart-contract standard, Solidity is stable on 0.8.x while waiting for 0.9, and viem with wagmi is rapidly replacing ethers.js. Looking only at EVM gets you half the picture — StarkNet's Cairo, Solana's Anchor (Rust), and Arbitrum Stylus's Rust contracts each grow their own universe. This post consolidates the entire Web3 stack in one place: Hardhat and Foundry, Solidity and Vyper, Cairo and Anchor, ethers.js v6 and viem, wagmi with ConnectKit/RainbowKit/Reown, OpenZeppelin 5.x, the security stack (Slither, Mythril, Echidna, Halmos), Tenderly monitoring, RPC providers (Alchemy, Infura, QuickNode, Helius), L2s (Arbitrum, Optimism, Base, zkSync, Polygon zkEVM, StarkNet), Arbitrum Stylus, Metaplex for NFTs, and Korea's PIO Network and Lambda256, Japan's Astar Network and Oasys. We close with an honest decision tree for who should pick what. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) web3smart-contracthardhatfoundrysolidityvypercairostarknetanchorsolanaethers-jsviemwagmiconnectkitrainbowkitreownwalletconnectopenzeppelinslithermythrilechidnahalmostenderlyalchemyinfuraquicknodeheliushardhat-ignitionmetaplexzksyncpolygon-zkevmarbitrum-stylusbase-coinbaseastar-network2026deep-diveenglish https://www.youngju.dev/blog/culture/2026-05-16-web3-smart-contract-dev-2026-hardhat-foundry-solidity-cairo-starknet-anchor-solana-viem-wagmi-openzeppelin-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-web3-smart-contract-dev-2026-hardhat-foundry-solidity-cairo-starknet-anchor-solana-viem-wagmi-openzeppelin-deep-dive.ja 2026年のWeb3開発はもはや「Hardhat + Truffle + web3.js」の世界ではない。Paradigmの Foundry が事実上のスマートコントラクト標準となり、Solidity は 0.8.x で安定したまま 0.9 を待ち、viem と wagmi が ethers.js を急速に置き換えつつある。EVM 一陣営しか見なければ全体の半分しか見えない —— StarkNet の Cairo、Solana の Anchor (Rust)、Arbitrum Stylus の Rust スマートコントラクトがそれぞれの宇宙を育てている。本稿は Hardhat と Foundry、Solidity と Vyper、Cairo と Anchor、ethers.js v6 と viem、wagmi と ConnectKit/RainbowKit/Reown、OpenZeppelin 5.x、Slither/Mythril/Echidna/Halmos のセキュリティツール、Tenderly モニタリング、Alchemy/Infura/QuickNode/Helius の RPC、Arbitrum/Optimism/Base/zkSync/Polygon zkEVM/StarkNet の L2、Arbitrum Stylus、Metaplex NFT、そして韓国の PIO Network と Lambda256、日本の Astar Network と Oasys まで、Web3 スタック全体を一本にまとめる。誰が何を選ぶべきか、最後に正直な意思決定ツリーを置く。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) web3smart-contracthardhatfoundrysolidityvypercairostarknetanchorsolanaethers-jsviemwagmiconnectkitrainbowkitreownwalletconnectopenzeppelinslithermythrilechidnahalmostenderlyalchemyinfuraquicknodeheliushardhat-ignitionmetaplexzksyncpolygon-zkevmarbitrum-stylusbase-coinbaseastar-network2026deep-dive日本語 https://www.youngju.dev/blog/culture/2026-05-16-web3-smart-contract-dev-2026-hardhat-foundry-solidity-cairo-starknet-anchor-solana-viem-wagmi-openzeppelin-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-web3-smart-contract-dev-2026-hardhat-foundry-solidity-cairo-starknet-anchor-solana-viem-wagmi-openzeppelin-deep-dive 2026년의 Web3 개발은 더 이상 "Hardhat + Truffle + web3.js"의 세계가 아니다. Paradigm의 Foundry가 사실상의 스마트 컨트랙트 표준이 되었고, Solidity는 0.8.x로 안정화된 채 0.9를 기다리며, viem과 wagmi가 ethers.js를 빠르게 대체하고 있다. EVM 한 진영만 본다면 절반밖에 못 본 것이다 — StarkNet의 Cairo, Solana의 Anchor(Rust), Arbitrum Stylus의 Rust 스마트 컨트랙트가 각자의 우주를 키워가고 있다. 이 글은 Hardhat과 Foundry, Solidity와 Vyper, Cairo와 Anchor, ethers.js v6와 viem, wagmi와 ConnectKit/RainbowKit/Reown, OpenZeppelin 5.x, Slither/Mythril/Echidna/Halmos 보안 도구, Tenderly 모니터링, Alchemy/Infura/QuickNode/Helius RPC, Arbitrum/Optimism/Base/zkSync/Polygon zkEVM/StarkNet L2, Arbitrum Stylus, Metaplex NFT, 그리고 한국의 PIO Network와 람다256, 일본의 Astar Network와 Oasys까지 — Web3 스택 전체를 한 글에 정리한다. 누가 무엇을 골라야 하는지 마지막에 정직한 결정 트리를 둔다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) web3smart-contracthardhatfoundrysolidityvypercairostarknetanchorsolanaethers-jsviemwagmiconnectkitrainbowkitreownwalletconnectopenzeppelinslithermythrilechidnahalmostenderlyalchemyinfuraquicknodeheliushardhat-ignitionmetaplexzksyncpolygon-zkevmarbitrum-stylusbase-coinbaseastar-network2026deep-dive