Telegraf github link: https://github.com/telegraf/telegraf
use of scens and stages example: https://github.com/Khuzha/simpleRegBot/blob/master/index.js
keyboards in telegraf: https://github.com/RealPeha/telegram-keyboard
scenes documentation: telegraf/telegraf#705
smart contract deployment and interacton: https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#signtransaction