🚀 Extension Project III: from spreadsheet chaos to a web app

Source: Dev.to

So here’s the deal: this semester I jumped into a real‑world challenge with a partner company. Their entire financial and inventory management was stuck in spreadsheets—manual entries, repetitive calculations, errors everywhere, and zero visibility for decision‑making. Basically… a nightmare. I kept thinking, “Seriously, in 2025 we’re still doing this?”

What I built

A web application that replaces the spreadsheet‑based workflow with an agile, data‑driven system.

Key features

• Customizable categories and payment methods
• Automatic integration: purchases → expenses, sales → income
• Dashboards with five core visualizations
• Lightweight JSON persistence + client‑validated prototypes

Real impact

• Fewer errors, leading to greater trust in the numbers
• Instant visibility of cash flow and spending patterns
• Direct support for day‑to‑day decisions

Tech stack

• Repository:
• Live demo:

The takeaway

This wasn’t just about coding. It was about proving that technology can turn clunky processes into something agile and strategic. Spreadsheets are fine… until they’re not.