Setup guide

[Rondywastaken]

Could somebody give a setup guide. I am very confused on the secretKey const. I tried to make a .env file and give it a private key to a wallet but It just gives an error

bigint: Failed to load bindings, pure JS will be used (try npm run rebuild?)

node_modules\@solana\web3.js\src\connection.ts:1610 callback(new Error(${res.status} ${res.statusText}: ${text}));