This is a simple Next.js single page application where users can sign up with email using the Alchemy Signer, silently deploy a Modular Account onchain, and send UserOperations (UOs) with zero gas.
It leverages Alchemy Embedded Accounts using Account Kit and the Alchemy Signer, Modular Smart Contract Account, Rundler and Gas Manager.
The run this app, you can get started in Alchemy's Account Kit docs.