Napkin to Production in 14 Days
A 6-tab spreadsheet tracking critical business operations was rebuilt as a full web application. 20 users adopted it within a week of launch.
Spreadsheet to production web app in 14 days, adopted by 20 users in first week
The Problem
An operations team was running their entire workflow through a shared spreadsheet — 6 tabs covering project tracking, resource allocation, client status, billing, approvals, and reporting. The spreadsheet had grown organically over 2 years and was breaking:
- Conflicting edits from simultaneous users
- No access control — everyone could see and change everything
- No audit trail for approvals
- Manual reporting that consumed 4+ hours weekly
The team knew they needed a proper system but couldn't justify a 3-month enterprise software procurement cycle.
The Approach
Translated the spreadsheet logic directly into a production web application:
- Day 1-2: Mapped every tab, formula, and workflow in the spreadsheet. Identified the actual business rules hiding in cell references.
- Day 3-7: Built the application — Nuxt frontend, Supabase backend with row-level security, role-based access matching the team's actual hierarchy.
- Day 8-10: Migrated existing data, built the reporting dashboard that replaced the manual weekly process.
- Day 11-14: User testing with the team, training, deployment, and handoff.
The Result
The team had a production application in 14 days that replaced a spreadsheet they'd been fighting with for 2 years.
Within the first week, 20 users were actively using the system. The weekly reporting process went from 4+ hours of manual compilation to a single dashboard that updates in real-time.
Key Metrics
- Build time: 14 days, concept to production
- Adoption: 20 users within first week
- Time saved: 4+ hours/week on reporting alone
- Data integrity: Row-level security replaced open spreadsheet access
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