Do you have difficulties to switch to Wagmi V2 / Viem V2 / RainbowKit V2 ?

Here is a basic repo to create your DApp.

Backend

Installation

yarn install

Launch local Blockchain

yarn hardhat node

Launch Tests

yarn hardhat test

Deploy Smart Contract

yarn hardhat ignition deploy ignition/modules/SimpleStorage.js --network localhost

FrontEnd

Installation

yarn install

Rename .env.local.example to .env.local

Fill the WalletConnect ID, you can find it and cloud.walletconnect

Launch Application

yarn dev