Library-management system using solidity

I have a blog post on which is a follow along tutorial :Blog Link

Future scope for this project

• Use ZK technology to enhance privacy.
• Store book data in a database and perform computations only on the blockchain.
• Invest staked tokens (DAI) to obtain a fair return and share a portion of the interest with the librarian as an incentive.
• Allow borrowing of multiple books at the same time.
• Stake different amounts of DAI on the basis of price of the book.
• Implement a penalty for late book returns.
• Add a function in the smart contract to enable the librarian to remove books.