The blog post provides a comprehensive guide on how to build a decentralized finance (DeFi) yield farming decentralized application (dApp) that rewards users with governance tokens based on the ERC20 standard, using Chainlink decentralized oracles to determine token values. It introduces yield farming as a method to provide liquidity to protocols in exchange for fees, interest, or incentives, and explains the process of creating a dApp where users can stake ERC20 tokens to earn proportional rewards. The tutorial covers setting up the development environment, deploying smart contracts on the Kovan testnet, and using Chainlink's decentralized price feeds to calculate the value of staked tokens in ETH terms. Users can interact with the platform through a React-based frontend, with functionalities for staking, unstaking, and receiving reward tokens. The guide encourages developers to explore the repo for further customization and invites them to participate in the Chainlink Hackathon for additional learning and networking opportunities.