Web App & SaaS2024Fullstack Architecture

Duitku

Duitku membantu kamu mencatat pemasukan dan pengeluaran dengan mudah, memahami ke mana uang pergi, dan melihat gambaran keuangan yang jelas — tanpa kerumitan.

Category

Web App & SaaS

Tech Stack

Next.js, PostgreSQL

Role & Scope

Fullstack Architecture & Design

Key Highlights

Fullstack Architecture

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Duitku
Goal & The Challenge & Context

Help individuals record income and expenses without the friction of a heavy finance app.

The main challenge was reducing friction. Finance tools often fail because users feel punished by long forms, technical labels, or dashboards that only make sense after weeks of data. Duitku needed to feel useful from the first session while still keeping enough structure for accurate reporting.

What I built

Fullstack money-tracking web app
Clean income/expense entry and categorization
Dashboard with a clear financial overview
PostgreSQL-backed data layer

Architecture & Key Decisions

I designed the experience around short entry flows, obvious transaction types, and a clean PostgreSQL-backed data model. The app separates capture, review, and summary screens so users are not forced to think about analysis while entering a transaction. On the marketing side, the project page explains the value in plain language instead of selling a complex finance platform.

1Kept the first action visible so a returning user can add a transaction without searching through navigation.
2Used simple category and amount patterns that are easy to validate and extend when future reports are added.
3Prioritized mobile layout because personal finance entries usually happen immediately after a purchase or transfer.
4Kept copy short and practical so non-technical users understand the benefit before reading feature details.

Outcome & Results & Business Validation

Result #1

A focused product that lowers the barrier to tracking money

Result #2

Simple UX that surfaces where money goes

Result #3

Extendable codebase for future features

The result is a focused fullstack product with a clear upgrade path. It already covers core tracking behavior while leaving room for budget limits, month comparison, CSV export, and notification workflows. The important measure is not visual complexity; it is whether a user can record data consistently and see where money goes without needing a tutorial.

Constraints

  • Solo build balancing product clarity with a maintainable schema
  • Kept the interface minimal so non-technical users are not overwhelmed

Next Development Roadmap

The next meaningful iteration would add category-level insights, monthly comparisons, and export tools for people who want to review spending with a partner or accountant.

Project FAQ

FAQ about Duitku

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