# EDUHUB Official Downloads & Installation Guide

Welcome to the **EDUHUB Official Downloads Center**.

---

## 1. EDUHUB Desktop App (Windows, macOS, Linux)
The flagship desktop application built with **Java 21 LTS + JavaFX**:
- Direct binary download: [`EDUHUB-Desktop.exe`](EDUHUB-Desktop.exe) (~50 MB, 64-bit Windows)
- Requires zero installation when running the portable executable.
- Uses an embedded SQLite database (`eduhub.db`) for 100% offline, privacy-first, zero-latency learning.
- Includes an interactive Android Mobile Simulator directly inside the desktop app!

### Run from Source:
```bash
cd c:\software\eduhub3\rebuild\eduhub-desktop
mvn javafx:run
```

---

## 2. EDUHUB Native Android App
The official companion mobile app written in **Kotlin + Jetpack Compose Material 3**:
- Located in `c:\software\eduhub3\rebuild\eduhub-android`
- Requirements: Android 8.0+ (`minSdk 26`, target `SDK 35`)
- Features: Mobile curriculum reader, rubric challenge checker, and central server synchronization.

### Build APK via Gradle:
```bash
cd c:\software\eduhub3\rebuild\eduhub-android
.\gradlew.bat assembleRelease
```
The output APK will be placed in `app/build/outputs/apk/release/`.

---

## 3. EDUHUB Web Platform
The in-browser version runs completely in your web browser with zero configuration:
- Double-click `start-website.bat` or run `node server.js`
- Open `http://localhost:3000` in any web browser.