Marvel Collin / Projects
Polaris
Polaris is a point of sale web app with stock and debt tracking, built by Marvel Collin for Sahabat Sentarum, Pontianak, Indonesia. It was built from Aug 2026 to Oct 2026 with React 19, Go, Gin and Turso. Role: Solo.
- Year
- Aug 2026 to Oct 2026
- Role
- Solo
- Stack
- React 19 · Go · Gin · Turso
- Client
- Sahabat Sentarum, Pontianak, Indonesia
- Result
- v3.0 live
A point of sale web app for Sahabat Sentarum, served at marvelcollin.com/sahabatsentarum. A React 19 frontend talks only to a Go and Gin API, and only the API talks to the Turso database, Midtrans and Google Drive, so no secret reaches the browser.
Sales and purchasing with returns, customer and supplier accounts, product and category management with images, receivables and payables tracking, and a dashboard.
Receipts print as fixed width text for dot matrix printers, QRIS payments go through Midtrans, and GitHub Actions backs the database up to Google Drive twice a day.
It replaced an earlier Tauri desktop version, which still lives on its own branch.
Outcome: v3.0 live.