Let us see how we can integrate foundry into the hardhat project, for that we will be using Hardhat x BuildBear repository which lets you create your own private testnet, forked from the mainnet, with your own Native and ERC20 Token faucet and blockchain Explorer

Note: Make sure the foundry and hardhat are installed in your system.

• Fork and clone the Hardhat x BuildBear repository.

git clone <Paste the URL>
cd Hardhat-BuildBear
git init
npm install

• Add the following to the Hardhat Config file

require("@nomicfoundation/hardhat-foundry");

• To initialize the foundry into your project, run the command

npx hardhat init-foundry

• Create your private testnet and after the testnet is live the details of the sandbox will be stored in testnet.json file

npm run createTestnet

npx hardhat run scripts/deploy-greeter.js

After successful deployment, click on the explorer link to interact with the contract.