When I built FinControl , a personal finance app in Next. js + Supabase, the feature that took the longest wasn't the dashboard or the Stripe billing. It was "Import bank statement" .

Source: [Dev.to](https://dev.to/leonardomarcusgit/importing-bank-statements-in-the-browser-ofx-messy-csvs-and-duplicate-detection-164a)

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