Todo-App VS ERC20-Staking-Machine

I've been learning solidity for a few months now and finally decided to share my project. This seems like the place to share and get feedback. The project that I decided to make is a todo app for major procrastinators. Essentially users can create a todo with an allocated time of completion. In addition users have to option to lock in Ethereum with the todo. If the user completes the todo in time, they get their deposit as well as some tokens for their hard work. If the todo is not completed in time the user loses their deposit. The app itself runs on the ropsten testnet. The app can be accessed by https://wsilber.com/portfolio/todo-app. GitHub https://github.com/wSilber/Todo-App. Any feedback or constructive criticism would be much appreciated.

Most articles I've found on the topic are extremely basic and focused around investing. I'm trying to understand if there's a difference between the 2 concepts. What I understand through staking is a contract that at its core allows users to lock in a certain amount of fungible tokens that they then accumulate interest on. I've seen yield farming described the same way, except people usually mention that stakeholders are incentivized to participate in the process by receiving fees from certain transactions. I guess that makes sense, and I've seen a few contract examples that implement this basic idea (here or here, however they don't really focus on the staking/rewards pool/incentive side of things (how do the token owners & stakeholders benefit from the whole process).