annelohmeijer / Bricks

Capstone project for Artemis EVM & Solidity bootcamp

work in progress

Bricks

Bricks is the final capstone project for the Artemis Bootcamp, an intensive 8-week EVM & Solidity bootcamp. In the capstone project one brings together all the acquired knowledge and aims to build a DeFi or web3 product.

Introduction

Bricks is a combination of Defi and paying your rent or mortgage. The basic idea is that it is a combination of e.g. Aave or Gearbox, and a scheduler that allows you to set recurring payments to an EOA. The protocol consists of the following components:

• Scheduler contract: allowing a user to submit a certain recurring (e.g. monthly) transaction;
  • contract should make use of chainlink oracle to fetch latest price of asset to see how much it needs to convert to e.g. USDC.
• Vault contract, that contains the deposits of a user; or (V2)
  • contract that acts as intermediary between Aave and and the Scheduler contract.
• Borrow contract, that allows a user to set a certain amount to borrow.
• Notifier: that checks if a certain transaction is executed or not
• Frontend: that allows a user to interact with the contracts

Contract addresses

| Network | Address | Version |
| Goerli | address | version |

Deployment

The contracts are developed and deployed with Forge and Alchemy. In order to deploy the contract(s), an .env file is required that contains the following envvars

ALCHEMY_KEY=<alchemy-api-key>
PRIVATE_KEY_GOERLI=<private-key-of-goerli-address-to-deploy-from>

MVPs

For iterative development the following versions have been iterated over:

1. Contract that keeps track of users funds and is allowed to transfer funds on behalf of user.
2. Contract that able to swap WETH to USDC.
   • Contract that is able to swaps ether to USDC on a fixed rate on behalf of user (so no borrowing).
   • Add Chainlink reference contract to request current ETH/USDC rate.
3. Ability to borrow against ETH, with default value.