• swapping tokens
• mainnet fork & account impersonation using Hardhat
• the important thing is getting RPC from Alchemy or Moralis account
• setBalance
• Signer: Ethersjs has signers that are msg.sender(signer of the transaction). It's an object that contains a lot of things. There are two types of signers complete and absolute signers await ethers.getSigner

Deploying contracts to Live Networks

• like Rinkbey
• you’ll need private ke
• gitignore/env
• typescript is there to save us

Never streamline yourself: it depends on how you write your contract remember packing too...what we’re doing is valid on local network if you can fork your Rinkbey to the local network you can do anything. Rinkbey spins local network

Ethersjs documentation check Signer

require(failure than success): low-level call(save gas costs

)