Setting up local blockchain

npx ganache-cli --deterministic

Deploying

npx truffle compile
npx truffle migrate --network development
npx truffle console --network development

Running tests

npx truffle compile
npx truffle test

Running script

npx truffle compile
npx truffle migrate --network development
npx truffle exec --network development ./scripts/index.js

npx truffle exec --network development ./scripts/subscribe.js

Deploying to Testnet

https://docs.openzeppelin.com/learn/preparing-for-mainnet