rizaptk

Full-stack Developer · Pontianak, Indonesia

Now: HakoDB · Kastoko & TokoCepat · AI agents

github.com/rizaptk

About

Full-stack developer working across the stack — from an embedded document database (HakoDB) to desktop apps (Tauri) and web platforms for education. Mostly JavaScript and Pascal, with a PHP past.

offline-first apps · embedded databases · dev tooling · education tech

Background

Now — Rust, Tauri & HakoDB: embedded document DBs, offline-first POS, AI-agent tooling
Education tech — full-stack web platforms for FKIP Untan & chemistry learning (ChemBS, Silangkau, ScholaSync, FirePressExpress)
Before — PHP backends, Angular & React frontends

Skills

JavaScript TypeScript Pascal PHP Rust Tauri Angular React SQLite RethinkDB Full-stack

Projects

Kastoko POS app screenshot

Kastoko Featured ↗

Offline-first POS app for Windows desktop — the complete variant, up to cloud sync. Tauri v2, HakoDB embedded DB.

TokoCepat POS app screenshot

TokoCepat Featured ↗

Offline-first POS app for desktop & Android — the simpler variant, LAN net-sync only. Same codebase as Kastoko.

App releases: github.com/rizaptk/tokocepat-dist · CI: github.com/rizaptk/kastoko-updates

Libraries & releases

Embedded, Firestore-style document DB in Rust — successor of FireLite: core engine, CLI, cloud server, Tauri bindings, Go/JS/Pascal SDKs, benchmarks.

Small Firestore-like API backed by wa-sqlite and OPFS — Firestore-style persistence in the browser.

kastoko-updates ↗

CI release channel for Kastoko (Windows desktop), powered by HakoDB.

Live apps

ScholaSync app screenshot

App with Rethink-Firestore backend (private code).

FirePressExpress app screenshot

FirePressExpress ↗

Publishing app with Rethink-Firestore backend (private code).

Also built

qordia — no public link retailpulse — no public link

Older work

ChemBS app screenshot

Chemistry education app, chemserver backend (pre-AI era).

Silangkau site screenshot

Academic site for FKIP Untan (pre-AI era).