Alex Weisberg
← Prototypes
Private Prototype2026-07

Finance OS

A private finance dashboard that runs on my machine. I upload statements myself. No bank link. Built so I can trust the grades.

React · Python API · Database · Statement imports · Scanned PDF reading · Cursor

Finance OS preview

What question am I exploring?

Can I build a private finance dashboard that understands the messy statements I already download, without linking my bank to the cloud?

What have I learned?

Keep money data on my machine. When the app is unsure, it should ask, not guess. A wrong letter grade that looks official is worse than no grade. Honest inputs take the real effort.

What comes next?

Get better at sorting leftover spending out of Other, and keep teaching the app to read the messy statements I actually download.

Screenshots

Finance OS dashboard with overall grade and cash summary
Grades and spending for the period I pick, with my data staying on my machine.
Import screen asking me to confirm which bank or institution a file came from
The app guesses which institution a file came from, then asks me to confirm. It can also read photo or scanned PDFs.
Net worth balance sheet view
Accounts from imports, plus what I add by hand: what the house is worth, and what I still owe on it.
Retirement accounts summary
Retirement accounts stay separate so investment growth doesn’t look like paycheck income.
Finance OS navigation from Dashboard to Imports
Dashboard, spending, net worth, retirement, and imports in one place.

What this explores

Finance OS asks whether I can replace a painful spreadsheet, and skip “link your bank” apps, by uploading the statement files I already download. The goal is one private picture of my money: grades over time, spending guidelines, cash flow, retirement, insurance, and net worth.

Why it matters

Most money tools trade convenience for trust. I don’t want my balances living on someone else’s cloud. This prototype stays on my machine. Real money does not move. When a file is unclear, the app should ask me, not guess. When a PDF is basically a photo of a page, it still needs to read the numbers.

Current status

Building and private. This isn’t a public app yet. Real money does not move. Reporting and organization only, on files I supply. Beyond the first dashboard and imports, it now includes:

  • Spending views with category averages, share of income, and Watch flags when something looks off
  • Letter grades that follow the time window I select, with a history for that period
  • Drill-down into a category to see totals, why it’s flagged, and the transactions underneath
  • Stronger imports for retirement and brokerage statements, plus better handling of scanned or photo PDFs

Next

Get better at sorting leftover spending out of Other, and keep teaching the app to read the messy statements I actually download.

Learning Log