1. Run npm install to download the node_modules folder.
2. Download the dotenv package in your project directory by running npm install dotenv --save in your terminal
3. Create a .env file in the root directory this nft-minter by entering the following on your command line: vim .env and then add your Alchemy API Key and Pinata Key and Secret. Altogether, your .env file should look like so:

REACT_APP_PINATA_KEY = <pinata-key>
REACT_APP_PINATA_SECRET = <pinata-secret>
REACT_APP_ALCHEMY_KEY = https://eth-ropsten.alchemyapi.io/v2/<alchemy-key>

4. Run npm startin your terminal to open the minter in your browser at http://localhost:3000/.