firestore-security-rules

Real-time personal expense tracker for Android — Java, Firebase Auth + Cloud Firestore, Material 3. No backend server: Firestore Security Rules are the authorization layer.

JetBrains IDE plugin that treats Firebase Security Rules (.rules) for Cloud Firestore and Cloud Storage as a first-class language: syntax highlighting, formatting, structural diagnostics, and symbol intelligence.

同志社大学・同志社女子大学の学生と学内団体（サークル・ゼミ）をつなぐ、スカウト型マッチングプラットフォーム。Flutter × Firebase による個人開発。

Archived four-person course project: campus marketplace on React + TypeScript and Firebase. Emulator-tested Firestore security rules, a CI-gated deploy and opt-in observability. Tech lead: Arlo Kharod.

A family savings tracker for one kid's piggy bank: chore deposits, spending categories, a goal and daily interest, shared across every device in the house via Firestore.

App movil de tareas (React Native + Expo) con cuentas, sincronizacion en la nube y reglas de Firestore con denegacion por defecto.

Collaborative whiteboard on Expo + Firebase, kept as a frozen portfolio showcase. Server-enforced plan limits (Cloud Functions + rules), rules-tested workspace isolation, idempotent and order-safe Stripe webhooks, metered AI gateway. Course origin, solo continuation. Not deployed.

Tested Cloud Firestore security rules for a two-sided services marketplace (61 emulator tests).

Two-player real-time word convergence game. Flutter + Firestore with no backend server, and security rules that keep each word hidden until both players have committed.