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Finance + Local-first
Invoice-Go
A local-first invoicing app for freelancers and small businesses, built for web and mobile.
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- Project type
- Invoicing app
- Industry
- Finance + Local-first
- Core stack
- Next.js 16 / React 19 / TypeScript / PowerSync
Problem
The challenge.
Creating an invoice is one part of the job. Client details, payment status, and documents also need to be accessible across devices.
Build
What I built.
I built a Next.js app with local SQLite storage, client and invoice records, PDF generation, light and dark themes, and Capacitor packaging.
Outcome
What it supports.
The project brings client records, invoices, and payment tracking into a single workspace designed around local data.
Highlights
Inside the project.
- One React codebase for static web and Capacitor mobile packaging.
- Local SQLite data layer through PowerSync and wa-sqlite.
- Light and dark themes.
- PDF generation for invoices.
Technical stack
Tools and technologies.
- Next.js 16
- React 19
- TypeScript
- PowerSync
- Drizzle
- wa-sqlite
- Supabase
- Capacitor
Design challenges
Details that shaped the work.
The app is designed around static export, so auth, Supabase access, local storage, and sync behavior needed to work without relying on a server runtime.
Client and invoice records need to work with local storage while supporting synchronization between devices.