To get started with this Ethereum dApp template | you need to set up your environment by adding values to the following App State variables: * blockchainUrl: To connect to the Ethereum network | you will need the URL of the Sepolia Testnet from Infura. Sign up for a free account at . and create a new project. In the project settings | find the Sepolia Testnet endpoint and copy the URL. Paste the URL into the 'blockchainUrl' App State variable in FlutterFlow. * contractAddress: After deploying your smart contract on the Remix IDE ( . ) | you will need to obtain the contract address. In the Remix IDE | navigate to the "Deploy & Run Transactions" tab (the icon looks like a cube with an arrow). Once your contract is deployed | expand the "Deployed Contracts" section | and you will see your contract instance. Copy the contract address and paste it into the 'contractAddress' App State variable in FlutterFlow. * ethPrivateKey: In order to interact with the Ethereum blockchain | you will need the private key of your Metamask wallet's test account. Open your Metamask wallet | and make sure you are on the Sepolia Test Network. Click on the account icon (circle in the top-right corner) | then click on "Account Details." In the Account Details popup | click on "Export Private Key." Enter your Metamask password and confirm. Copy the private key and paste it into the 'ethPrivateKey' App State variable in FlutterFlow. Please remember to never share your main account's private key | only use a test account for this purpose. * className: The className refers to the smart contract class name in the Remix IDE. In the Remix IDE | locate your smart contract file in the "File Explorers" tab (the icon looks like a folder). The className is the same as the smart contract file name (excluding the .sol extension). For example | if your smart contract file is named "MySmartContract.sol" | your className would be "MySmartContract". Enter the className into the 'className' App State variable in FlutterFlow. Once you have updated these App State variables | your template is ready to use! You can now proceed with customizing the user interface and extending the app's functionality to suit your specific requirements.