Artha.

Household financeoperating system.

A shared personal-finance app for tracking expenses, accounts, budgets, goals, recurring bills, and lending across a household, live end-to-end on mobile and a serverless backend.

YEAR: 2026
TYPE: MOBILE + SERVERLESS API
ROLE: FULL-STACK · DESIGN TO DEPLOY

BUILT WITH

React Native
Expo
TanStack Query
ElysiaJS
Drizzle ORM
Neon Postgres
Vercel
EAS Build

01 / FEATURES

More thanan expense tracker.

Artha brings everyday tracking, planning, and financial obligations into one shared app for a single household.

TRANSACTIONSExpenses, income, and balances across bank, e-wallet, cash, and investment accounts.

PLANNINGBudgets, savings goals, recurring bills, and spending forecast.

LENDINGWho owes whom, with debt and repayment tracking.

ANALYTICSSpending trends and category breakdown in a donut chart.

SELF-SERVECreate and edit accounts, categories, the household, and all entities in-app.

THEMINGFull light and dark modes in the Neo Ledger design.

02 / SYSTEM

Balances calculatedon the server.

React Native and Expo use Expo Router with typed routes and TanStack Query. A repository pattern automatically switches between in-memory storage and the API. Money uses integer rupiah, with a server-side balance engine. The ElysiaJS backend uses Drizzle ORM and Neon Postgres through the serverless HTTP driver.

01MOBILE
02REPOSITORY
03ELYSIAJS
04DRIZZLE ORM
05NEON POSTGRES

CONNECTED

03 / INTERFACE

Neo Ledger,bold and restrained.

Restrained neo-brutalism: an ivory canvas, dark outline cards, and a lime (#C8F70D) accent. IBM Plex Mono labels meet Inter Tight numerals and colorful category icons. react-native-svg, Lucide icons, and custom theming support the light and dark modes.

04 / STATUS

Live, forone household.

Mobile, backend, and database are deployed: an Android APK through EAS Build, a serverless API on Vercel, and a database on Neon. My role spans design, mobile, backend, and deployment. The app is private for a single household, with no authentication yet and no public demo. The backend repository is also private.

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Hadirin01 ↗