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https://github.com/ms-rex/nexora-competition

AI-powered voice chat application ecosystem designed to revolutionize university communication and support.
https://github.com/ms-rex/nexora-competition

flutter landing-page laravel mobile-app python webapp

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AI-powered voice chat application ecosystem designed to revolutionize university communication and support.

Awesome Lists containing this project

README 

          
# Nexora University Copilot



![Nexora Cover Photo](images/cover_photo.png)

_Nexora - AI-Powered University Communication Ecosystem_



## Project Overview



Nexora is an AI-powered voice chat application ecosystem designed to revolutionize university communication and support. Our comprehensive solution combines real-time voice conversations, intelligent AI agents, and modern web interfaces to create an seamless educational technology platform. Built for the Nexora 1.0 Inter-University Datathon 2025, this project demonstrates advanced AI agent orchestration, real-time communication, and intelligent user interaction capabilities.



The Nexora ecosystem consists of three integrated components working together to provide a complete AI-powered university communication solution.



## System Architecture



Our project is organized into four main repositories, each handling a specific component of the Nexora ecosystem:



### 📱 [Mobile Application](https://github.com/MS-Rex/nexora-app.git)



**Flutter-based AI Voice Chat App**



- Real-time voice conversations with AI agents

- Beautiful animated UI with voice visualizations

- WebSocket communication for instant responses

- Speech recognition and audio processing

- Cross-platform mobile experience (iOS & Android)



### 🤖 [AI Agentic System](https://github.com/MS-Rex/nexora-ai.git)



**Backend AI Engine & Agent Orchestration**



- Intelligent conversation processing

- Voice-to-text and text-to-voice conversion

- AI agent management and coordination

- Machine learning pipeline integration



### 🌐 [Web Application](https://github.com/nilanviduranga/uni-chat-bot.git)



**University Chat Interface**



- University chatbot web interface

- Web-based chat functionality

- Real-time messaging system



### 🎨 [Landing Page](https://github.com/MS-Rex/nexora-landing.git)



**Marketing Platform & Competition Entry**



- Modern Next.js 15 landing page

- Competition showcase and information

- Responsive design with dark/light theme

- Built by Team RexFlow for Nexora 1.0 Datathon



[![Watch the video](https://img.youtube.com/vi/l6LxqBMR7uM/maxresdefault.jpg)](https://www.youtube.com/watch?v=l6LxqBMR7uM)

_Watch This Demo_



## Features



### Core Features



- **Real-time Voice Chat**: Instant AI-powered voice conversations

- **Cross-platform Mobile App**: Native experience on iOS and Android

- **Intelligent AI Agents**: Advanced conversation processing and responses

- **Web Chat Interface**: Browser-based chatbot for universities

- **WebSocket Communication**: Real-time bidirectional data exchange

- **Speech Recognition**: Advanced voice-to-text capabilities

- **Voice Synthesis**: Natural AI voice responses



### Additional Features



- **Beautiful Animations**: Dynamic voice wave patterns and breathing effects

- **Multi-platform Support**: Mobile, web, and backend integration

- **Secure Communication**: Encrypted real-time data transmission

- **User Authentication**: Secure user management system

- **Chat History**: Persistent conversation storage

- **Permission Management**: Granular device permission control



## Tech Stack



### Mobile Frontend (Flutter App)



- **Frontend**: Flutter 3.29.1, Dart, Material Design 3

- **State Management**: BLoC Pattern, Injectable DI

- **Navigation**: Auto Route

- **Audio**: Record Package, AudioPlayers

- **Communication**: WebSocket, JSON



### Backend (AI Agentic System)



- **Backend**: Laravel (PHP framework)

- **Real-time Communication**: Pusher (WebSocket service)

- **Authentication & Authorization**: Spatie Laravel Permission (Role management)

- **Database**: MySQL

- **AI/ML**: OpenAI Whisper (Small model - 244M parameters)

- **Voice Processing**: OpenAI Whisper for speech recognition and transcription

- **Communication**: WebSocket Gateway, REST APIs



### Web Application



- **Frontend**: Next.js (React-based framework)

- **Backend**: Laravel (PHP framework)

- **Database**: MySQL



## Live Infrastructure



Our complete Nexora ecosystem is deployed and running live on AWS cloud infrastructure:



### AWS Architecture



- **🖥️ EC2 Instance 1**: Laravel backend server

- **🖥️ EC2 Instance 2**: FastAPI AI processing server

- **🗄️ Amazon RDS**: Managed relational database service

- **📊 Sentry**: Real-time error tracking and performance monitoring

- **🌐 Load Balancing**: Distributed across multiple availability zones



### Monitoring & Operations



- **Error Tracking**: Sentry integration for real-time error monitoring

- **Performance Monitoring**: Application performance insights and alerting

- **Database Management**: Amazon RDS for scalable and reliable data storage

- **Auto-scaling**: EC2 instances configured for dynamic scaling based on demand



**🚀 Live Demo**: [https://nexora-chat.vercel.app/](https://nexora-chat.vercel.app/)



## Screenshots/Demo



### Mobile Application Demo



![Mobile UI Design](images/mobile-ui.png)

_Mobile app UI design created in Figma showcasing the voice chat interface and animations_



Mobile Home Page

Nexora mobile app home screen showing the clean and intuitive user interface



Voice Chat Mode

Active voice chat mode with real-time voice visualization and AI interaction interface



_Additional screenshots and demo videos available in the [mobile app repository](https://github.com/MS-Rex/nexora-app.git)_



### Web Application Demo



![Web Application Home Page](images/web_homepage.jpg)

_Nexora web application home page featuring the university chatbot interface built with Next.js_



_Additional screenshots and demo videos available in the [web app repository](https://github.com/nilanviduranga/uni-chat-bot.git)_



### Overall System Architecture



![Nexora System Architecture](images/overall_architecture.png)

_Complete Nexora ecosystem architecture diagram showing all components and their interactions_



📊 Interactive Architecture Diagram (Click to expand)



```mermaid

flowchart TD

    %% Users Layer

    MobileUser["📱 Mobile User
(Flutter App)"]

    WebUser["🌐 Web User
(Next.js)"]



    %% Frontend Layer

    subgraph Frontend["Frontend Layer"]

        Mobile["📱 Mobile App
Flutter 3.29.1
• BLoC State Management
• Auto Route Navigation
• Material Design 3
• WebSocket Client
• Audio Recording"]

        Web["🌐 Web Application
Next.js
• React Framework
• University Chat Interface
• Landing Pages
• Responsive Design"]

    end



    %% Communication Layer

    subgraph Communication["Communication Layer"]

        WebSocket["📡 WebSocket
Pusher Service
• Real-time messaging
• Voice data streaming
• Connection management"]

        RestAPI["🔗 REST APIs
Laravel Endpoints
• Authentication
• Data operations
• File uploads"]

    end



    %% Backend Services

    subgraph Backend["Backend Services Layer"]

        Laravel["🛠️ Laravel Backend
EC2 Instance 1
• User Authentication
• Spatie Permissions
• Chat Management
• API Gateway"]

        FastAPI["🤖 FastAPI AI Server
EC2 Instance 2
• Voice Processing
• AI Agent Orchestration
• OpenAI Whisper Integration
• ML Pipeline"]

    end



    %% AI/ML Layer

    subgraph AI["AI/ML Processing"]

        Whisper["🎤 OpenAI Whisper
Small Model (244M)
• Speech-to-Text
• Language Detection
• Audio Transcription"]

        AIAgent["🧠 AI Agents
• Conversation Processing
• Response Generation
• Context Management"]

    end



        %% Data Layer

    subgraph Data["Data Layer"]

        MySQL["🗄️ MySQL Database
Amazon RDS
• User Data
• Chat History
• Authentication
• Analytics
• Voice Transcriptions"]

    end



    %% Infrastructure Layer

    subgraph Infrastructure["AWS Infrastructure"]

        LoadBalancer["⚖️ Load Balancer
• Traffic Distribution
• High Availability
• Auto-scaling"]

    end



    %% External Services

    subgraph External["External Services"]

        Sentry["📊 Sentry Monitoring
• Error Tracking
• Performance Metrics
• Real-time Alerts
• Application Monitoring"]

    end



    %% User Connections

    MobileUser --> Mobile

    WebUser --> Web



    %% Frontend to Communication

    Mobile --> WebSocket

    Mobile --> RestAPI

    Web --> RestAPI



    %% Communication to Backend

    WebSocket --> Laravel

    RestAPI --> Laravel



    %% Backend Connections

    Laravel --> MySQL

    Laravel --> FastAPI

    FastAPI --> Whisper

    FastAPI --> AIAgent

    FastAPI --> MySQL



        %% Infrastructure Connections

    LoadBalancer --> Laravel

    LoadBalancer --> FastAPI



    %% External Service Connections

    Sentry --> Laravel

    Sentry --> FastAPI



    %% Styling

        classDef userLayer fill:#e3f2fd,stroke:#1976d2,stroke-width:2px

    classDef frontendLayer fill:#f3e5f5,stroke:#7b1fa2,stroke-width:2px

    classDef commLayer fill:#e8f5e8,stroke:#388e3c,stroke-width:2px

    classDef backendLayer fill:#fff3e0,stroke:#f57c00,stroke-width:2px

    classDef aiLayer fill:#fce4ec,stroke:#c2185b,stroke-width:2px

    classDef dataLayer fill:#f1f8e9,stroke:#689f38,stroke-width:2px

    classDef infraLayer fill:#f5f5f5,stroke:#616161,stroke-width:2px

    classDef externalLayer fill:#fff8e1,stroke:#ff8f00,stroke-width:2px



    class MobileUser,WebUser userLayer

    class Mobile,Web frontendLayer

    class WebSocket,RestAPI commLayer

    class Laravel,FastAPI backendLayer

    class Whisper,AIAgent aiLayer

    class MySQL dataLayer

    class LoadBalancer infraLayer

    class Sentry externalLayer

```



_Complete Nexora ecosystem architecture showing the integration of mobile app, web application, AI processing, and AWS infrastructure_



## Setup Instructions



To run the complete Nexora ecosystem locally, you'll need access to several external services and APIs. Follow the setup instructions for each component:



### Prerequisites & External Services



Before setting up the local environment, ensure you have access to the following services:



#### Required API Keys & Services:



- **🤖 OpenAI API**: Required for AI conversation processing and language models

- **📊 Logfire API**: Required for advanced logging and monitoring

- **📈 Sentry API**: Required for error tracking and performance monitoring

- **☁️ AWS RDS URL**: Required for database connectivity (alternatively, set up local MySQL)

- **🎤 OpenAI Whisper Model**: Can be run locally (Small model - 244M parameters)



#### Environment Variables:



Create `.env` files in each repository with the following required variables:



```bash

# OpenAI Configuration

OPENAI_API_KEY=your_openai_api_key_here



# Logfire Configuration

LOGFIRE_API_KEY=your_logfire_api_key_here



# Sentry Configuration

SENTRY_DSN=your_sentry_dsn_here



# Database Configuration

AWS_RDS_URL=your_aws_rds_connection_string

# OR for local development:

DB_CONNECTION=mysql

DB_HOST=127.0.0.1

DB_PORT=3306

DB_DATABASE=nexora_local

DB_USERNAME=your_username

DB_PASSWORD=your_password



# Pusher Configuration (for WebSocket)

PUSHER_APP_ID=your_pusher_app_id

PUSHER_KEY=your_pusher_key

PUSHER_SECRET=your_pusher_secret

```



### If you Love be Alpha tester on Production Application use below credentials to login (Its not fully functional due limited resources and time but soon will be full update to latest code)



Email : test-user@nexora.com

OTP : 123456



### Local Development Setup



To run the complete Nexora ecosystem locally, follow the setup instructions for each component:



### 1. Mobile Application Setup



```bash

# Clone the mobile app repository

git clone https://github.com/MS-Rex/nexora-app.git

cd nexora-app



# Install Flutter dependencies

flutter pub get



# Generate required files

dart run build_runner build --delete-conflicting-outputs



# Run the mobile application

flutter run

```



### 2. AI Agentic System Setup



```bash

# Clone the AI system repository

git clone https://github.com/MS-Rex/nexora-ai.git

cd nexora-ai



# [Placeholder: Installation instructions]

# Follow setup instructions in the AI system repository

```



### 3. Web Application Setup



```bash

# Clone the web app repository

git clone https://github.com/nilanviduranga/uni-chat-bot.git

cd uni-chat-bot



# [Placeholder: Installation instructions]

# Follow setup instructions in the web application repository

```



### Alternative Local Setup (Without External Services)



If you prefer to run everything locally without external dependencies:



#### Local MySQL Setup:



```bash

# Install and configure local MySQL

sudo apt-get install mysql-server  # Ubuntu/Debian

brew install mysql                 # macOS



# Create local database

mysql -u root -p

CREATE DATABASE nexora_local;

```



#### Local Whisper Setup:



```bash

# Install OpenAI Whisper locally

pip install openai-whisper



# Download the small model (244M parameters)

whisper --model small --download-root ./models

```



#### Minimal Environment Configuration:



For basic local development, you can use minimal configuration:



```bash

# Minimal .env for local development

DB_CONNECTION=mysql

DB_HOST=127.0.0.1

DB_DATABASE=nexora_local

WHISPER_MODEL_PATH=./models/small.pt

```



Refer to the individual repository README files for component-specific configuration details and additional setup options.



## Repository Links



| Component     | Repository                                                         | Description                                    |

| ------------- | ------------------------------------------------------------------ | ---------------------------------------------- |

| 📱 Mobile App | [nexora-app](https://github.com/MS-Rex/nexora-app.git)             | Flutter-based AI voice chat mobile application |

| 🤖 AI System  | [nexora-ai](https://github.com/MS-Rex/nexora-ai.git)               | Backend AI engine and agent orchestration      |

| 🌐 Web App    | [uni-chat-bot](https://github.com/nilanviduranga/uni-chat-bot.git) | Web interface and landing page                 |



## Team



- **Team Member 1** – AI/ML & Mobile Developer & Project Lead

- **Team Member 2** – AI/ML Engineer & Backend Developer

- **Team Member 3** – Web Developer & Frontend Developer

- **Team Member 4** – UI/UX Designer & API Integration Specialist



_Team RexFlow - Where AI meets innovation and data fuels transformation!_



## Documentation



- **Mobile App Documentation**: Available in [nexora-app repository](https://github.com/MS-Rex/nexora-app.git)

- **AI System Documentation**: Available in [nexora-ai repository](https://github.com/MS-Rex/nexora-ai.git)

- **Web App Documentation**: Available in [uni-chat-bot repository](https://github.com/nilanviduranga/uni-chat-bot.git)



## Competition Details



**🏆 Nexora 1.0 Inter-University Datathon 2025**



This project represents a complete AI-powered university communication ecosystem, showcasing:



- Advanced AI agent orchestration

- Real-time voice and text communication

- Cross-platform mobile and web applications

- Intelligent conversation processing

- Modern UI/UX design principles



**Prizes:** 🥇 LKR 50,000 | 🥈 LKR 30,000 | 🥉 LKR 20,000



## Submission



**Developed for Nexora 1.0 – Round 2**  

**Submission Date**: 12th June 2025



**Live Demo**: https://nexora-chat.vercel.app/

**Project Website**: [nexora.msanjana.com](https://nexora.msanjana.com/)



---



## Contact & Support



- 📧 **Email**: miyurusanjana@gmail.com

- 🌐 **Website**: https://nexora-chat.vercel.app/

- 💬 **Issues**: Use the individual repository issue trackers



---



**Made with ❤️ by Team RexFlow**  

_Transforming university communication through AI-powered innovation_