Hi Ayush,
Good question. You’re right that a lot in interledger.rs is based around the Account model.
Right now, the node admin needs to add users’ Accounts with a POST to the /accounts HTTP API endpoint. While that is fine for two nodes who are explicitly peering with one another, it’s a bit of a laborious process.
In the future, we may add functionality for “auto-peering” or “easy peering”, which would make the Account creation process more automatic. For the status of that feature set, see Auto-Peering, Easy Peering, and Open Signup.