CrispyTalk.info

CrispyTalk is a real-time audio/video communication platform powered by WebRTC, Laravel, and Flutter, designed for low-latency, high-performance experiences on both web and mobile. The platform is optimized for low-end devices and unstable internet connections, featuring server-side transcoding and TURN/STUN support.

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🌐 Infrastructure Overview

CrispyTalk.info is a multi-service platform built on a custom-optimized infrastructure:

🔸 Main Domain: https://crispytalk.info

• API: Laravel 12 backend with PostgreSQL
• Path: /home/crispytalk/public_html
• Subfolder API Path: /home/crispytalk/public_html/api
• Handles:
  • Authentication
  • Video metadata
  • User profiles
  • Notification APIs (via Redis)

🔸 RTC Server: https://rtc.crispytalk.info

• Node.js with Socket.io
• Real-time signaling server for WebRTC
• TURN/STUN handling through Coturn
• Path: /home/crispytalk/public_html/rtc

🔸 Tech Stack

Component	Tech
Backend API	Laravel 12 + PostgreSQL
Realtime RTC	Node.js + Socket.io
TURN/STUN	Coturn
Frontend App	Flutter (Android/iOS/Web)
Real-time Bus	Redis
Media Tools	FFmpeg for video processing
Web Server	Nginx (for API + RTC)
Reverse Proxy	Nginx Reverse Proxy

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🔧 Server Setup Summary

• Server Provider: DigitalOcean Droplet
• Wildcard SSL: Configured for *.crispytalk.info
• PHP: 8.4
• Database: PostgreSQL
• Message Queue: Redis (used for real-time events)
• Reverse Proxy: Nginx (optimized for Node.js + Laravel APIs)
• Ports & Firewalls: Opened for WebRTC (typically 3478 for STUN/TURN, and WebSockets)

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⚙️ Folder Structure

/home/crispytalk/ ├── public_html/ │ ├── api/ # Laravel API (Laravel 12) │ └── rtc/

RTC Node.js Signaling Server

🔐 Security Notes Wildcard SSL ensures all subdomains are secured. Laravel API protected by sanctum/token-based auth. RTC and Redis secured and not exposed publicly. Nginx config optimized for resource and socket proxying.

📱 Mobile App Integration The Flutter app connects to:

API: https://crispytalk.info/api RTC Signaling: https://rtc.crispytalk.info via WebSocket Ensure appropriate CORS and socket configurations are enabled.

📄 License This project is proprietary and developed for the CrispyTalk Platform under EVEREST BUY LIMITED.

👤 Author Mian Salman Senior Software Engineer CTO, Everest Buy Limited 📧 [email protected] 🌐 everestbuys.com

🛠 Future Plans Add AI moderation for calls Multi-language support Admin dashboard with analytics Firebase integration for push notifications