maybe-finance/maybe ? reverse-engineered prompt

I want to build a personal finance dashboard app, something like a self-hosted version of Mint or Personal capital. The main goal is to see all my financial information in one place. When I log in, I should land on a main dashboard with a big-picture view of my net worth, maybe with a nice graph showing how it has changed over time. The app should also let me track my investment portfolio and give me a clear summary of my monthly cash flow. I want to be able to manually add various accounts—like my checking, savings, credit cards, and investment accounts—and see their current balances.

For the tech, a modern web stack like Ruby on Rails with a PostgreSQL database would be great. The user interface should be clean and visually focused, with lots of graphs and charts to make the data easy to understand. Of course, it will need a secure user login system to keep everything private.