Build Personal Finance Manager

I want to streamline the way I handle my money and bring every income-and-expense detail into one clear, reliable system. The project centres on Pengelolaan Keuangan Pribadi, so everything you deliver should revolve around tracking what comes in, what goes out, and how those numbers translate into day-to-day decisions.

Here’s what I have in mind. I need a practical tool—this could be a lightweight mobile app, a web dashboard, or a well-structured spreadsheet—so long as it is easy for me to update and quick to read at the end of each week and month. The interface has to make sense at a glance, with clean input forms, automatic calculations of running balances, and visual summaries that highlight spending patterns.

I will consider the job complete when:
• I can add, edit, and delete transactions without touching the underlying formulas or code.
• Category-level summaries (e.g., food, transport, savings) update instantly after each entry.
• Data can be exported or backed up so I never lose my records.
• A short, step-by-step guide shows me how to add new categories or tweak reports on my own.

If you have experience building finance trackers—whether in Excel with smart formulas and charts, in Google Sheets with Apps Script automations, or in a modern stack like React, Flutter, or Vue—please bring your best ideas. Clear documentation and a polished, bug-free hand-off are essential because this will become my day-to-day personal finance hub.