Next.js & React
Sign-In with Ethereum in Next.js 16: SIWE with viem, iron-session and a Replay-Proof Nonce (Tested)
A tested Sign-In with Ethereum flow for Next.js 16 with viem and iron-session: nonce, wallet signature and session, plus the cookie-nonce replay bug and the 1-second default verify I found while attacking it.
