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A Next.js analytics console that stays readable at scale

Fern is an administrative dashboard for a commerce operation — revenue analytics, order tracking, customer growth, traffic attribution and inventory in one console. The interesting problem was not drawing charts. It was keeping a dense, data-heavy interface fast and legible as the number of panels grew.

Next.jsTypeScriptTailwind CSSAnalyticsDashboard
Fern — Administrative Dashboard

Type

Internal admin console

Role

Design & full-stack build

Core stack

Next.js · TypeScript · Tailwind CSS

Focus

Data density, render cost, clarity

The Challenge

Admin dashboards fail in a predictable way when operators need to monitor five distinct metrics simultaneously without lag or visual clutter.

What I Built

Engineering Approach:

  • Organised console by question rather than data source

  • Surface exceptions and warnings before standard items

  • Optimised server/client boundary to minimise JavaScript payload

Key Features:

  • Revenue analytics with period comparison

  • Exception-first order tracking

  • Customer growth and retention trends

  • Traffic source attribution breakdown

  • Inventory management with stock threshold alerts

Results & Outcome

  • ✓

    Zero layout shift on tab switches

  • ✓

    Sub-second time to interactive on mobile devices

  • ✓

    Maintained 60fps scrolling through dense data tables

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