FinTech & Household Wealth EcosystemLive Project

Rumah Ringkas — Keuangan Keluarga

All-in-one family financial management platform with envelope budgeting, natural language quick-entry, and wealth tracking.

Role & ResponsibilityProduct Architect & Full-Stack Engineer
Duration2.5 Months
DomainFinTech
Project ClassificationLive Project

System Preview

Rumah Ringkas — Keuangan Keluarga — screenshot 1
Rumah Ringkas — Keuangan Keluarga

System Architecture Diagram

INTERACTIVE ARCHITECTURE VISUALIZER

Rumah Ringkas Household Wealth Engine

FinTech PWA linking family household members into a single real-time Net Worth calculator with natural language text parsing.

Status: STANDBY (Click node to inspect)
Client

Catat Cepat Input

Text / Voice Client

Logic

Indonesian Regex Parser

Text Classifier

Gateway

Envelope Budget Allocator

Cap & Cap-Ratio State

Database

Wealth & Net Worth Hub

Multi-Account Calculator

Click any node box to inspect deep technical specifications.
STATE_LOG_STREAM // REAL-TIME EXECUTION0 Events Logged
Node Spec Inspector

Catat Cepat Input

Text / Voice Client

Functional Purpose

Family members type informal text notes (e.g. 'Makan siang 25rb pakai GoPay').

Technical Specifications
InputNatural Language String
User RolesDanu, Sari, Ibu Tuti
Downstream Data Pipelines

Interactive Household Wealth Engine (Catat Cepat & Amplop Budget)

Live Interactive Component
RUMAH RINGKAS — KEUANGAN KELUARGA (PWA)

Family Financial Orchestration & Wealth Hub

Natural language quick entry, visual envelope budget caps, and multi-asset net worth aggregator.

Total Net Worth
Rp 25.970.000

"Catat Cepat" AI Input

Natural Language

Type informal Indonesian strings like in WhatsApp. The regex parser extracts amount, category, and account automatically:

Sistem Amplop (Envelope Budgeting)

Category Caps
Makan & Jajan77%
Rp 1.150.000Cap: Rp 1.500.000
Belanja Rumah82%
Rp 1.640.000Cap: Rp 2.000.000
Transportasi80%
Rp 480.000Cap: Rp 600.000
Anak & Sekolah68%
Rp 540.000Cap: Rp 800.000

Multi-Account Balances

Cash
Dompet Tunai
Rp 850.000
Bank
BCA Bersama
Rp 18.400.000
E-Wallet
GoPay
Rp 620.000
Investasi
Bareksa Reksadana
Rp 12.300.000
Utang
Cicilan Motor
-Rp 6.200.000

Project Narrative & Background

Rumah Ringkas brings corporate-grade financial discipline to family budgets. Designed around the classic 'Envelope Budgeting' methodology, family members can quickly type natural-language notes (e.g. 'Makan siang 25rb pakai GoPay'), which the system automatically parses into category, amount, and account balances. The platform aggregates Cash, BCA, GoPay, Jago, Bareksa, and Debts into a live Net Worth indicator.

Architectural Context: Household wealth management platform linking multi-member financial records into a single family dashboard.

The Operational Challenge

Multiple family members (Danu, Sari, Ibu Tuti) needed a frictionless way to record daily transactions instantly without complicated accounting forms.

The Engineering Solution

Built a mobile-first PWA featuring a 'Catat Cepat' natural language parser, visual envelope budget caps, multi-account Net Worth calculator, and granular family data privacy controls.

Key Architectural & Design Decisions

  • 01Built a custom Regex parser for Indonesian financial shorthand ('25rb', '12jt', 'Gaji masuk')
  • 02Implemented client-side reactive state sync across household member records.
  • 03Added CSV export and instant data-reset controls for family data sovereignty.

Key Deliverables & System Capabilities

  • Natural language 'Catat Cepat' transaction parser with automatic category & account mapping
  • Visual Envelope Budgeting Engine with dynamic weekly/monthly cap calculations
  • Multi-Account Net Worth Aggregator (Cash, Bank, E-Wallets, Investments, Utang & Piutang)
  • Interactive 6-Month Cashflow & Expense Breakdown analytics using Recharts

Project Outcome & Operational Impact

Adopted for daily family financial orchestration, reducing monthly unbudgeted expenses by 22%.

Technology Stack & Tools

React 19Tailwind CSSRechartsLucide ReactLocalStorage SyncPWA Architecture