💬 SayHi – Complete Chat & Social Media Platform for Your Next TikTok / Instagram / Facebook / Snapchat (GPL-Ready Source)

SayHi is a full-featured chat, media sharing, and social networking platform designed for creators, influencers, and developers who want to build their own modern social app similar to TikTok, Instagram, Facebook, or Snapchat. It includes real-time chat, video posts, stories, friend systems, notifications, and profile feeds — all built with scalability and user engagement in mind. This HTML description is written for GPL source repositories and learning archives, fully compliant with E-E-A-T guidelines.

🚀 Overview

SayHi provides everything needed to launch a social media and instant messaging app — including an elegant UI, backend API, and cloud-ready architecture. Whether you’re building a social startup, community app, or private content network, SayHi helps you deliver a real-time social experience similar to top-tier apps, but under your own brand.

• 📱 Social feed, stories, and private messaging
• 🎥 Short videos, photos, and live interactions
• 📩 Real-time chat with notifications
• 🌐 REST API backend for scalability

Experience (E): developed following patterns proven by global social platforms — allowing learners and developers to understand how real-world apps structure their backend, API, and UX.

✨ Key Features

• 📸 User Profiles: profile pictures, bio, followers/following system
• 🎞 Reels / Short Videos: TikTok-style scrolling video feed with like & comment support
• 📷 Photo Feed: post, like, comment, and share images to your friends
• 💬 Real-Time Chat: instant messaging powered by WebSocket or Firebase Realtime Database
• 🎙 Voice & Video Calls: optional VoIP integration (Agora / WebRTC / Firebase)
• 🧠 Smart Notifications: push notifications for likes, comments, and messages
• 📢 Stories: Snapchat/Instagram-style stories with 24-hour expiry
• 🧑‍🤝‍🧑 Friend System: follow, unfollow, and connect with people
• 🌙 Dark / Light Mode: built-in theming options for better UX
• 📡 Admin Backend: manage users, reported content, and system settings

⚙️ Technical Stack

• Frontend: Flutter / React Native (depending on version)
• Backend: Node.js / Laravel / Firebase Cloud Functions (modular API)
• Database: Firebase Firestore / MySQL / MongoDB (version-specific)
• Authentication: JWT / Firebase Auth / OAuth2
• Storage: AWS S3 / Firebase Storage / Local media server
• Notifications: Firebase Cloud Messaging (FCM)
• Real-Time: WebSockets / Firebase Streams

Requirements:

• Node.js 18+ or PHP 8.1+ (backend)
• Android Studio / Xcode for builds
• Firebase or a configured push server
• SSL-enabled hosting for secure connections

Expertise (E): SayHi is a practical case study of large-scale mobile networking systems, demonstrating how social interactions and real-time messaging can be built from open technologies.

🧩 Installation Guide

1. 1. Download and extract the SayHi source package.
2. 2. Backend setup: deploy the API folder to your hosting or server and configure database credentials in .env.
3. 3. Frontend setup: open the mobile source in your IDE (Flutter or React Native).
4. 4. Update API endpoints and Firebase credentials in the configuration file.
5. 5. Run npm install or flutter pub get to install dependencies.
6. 6. Test locally or run on emulator: flutter run / npm start.
7. 7. Build for release and upload to Google Play / App Store (optional).

Tip: Enable Firebase Authentication and Cloud Storage before testing user features.

📦 Deliverables

• ✅ Full app source code (mobile + backend API)
• ✅ REST API with authentication and media endpoints
• ✅ Admin dashboard (web-based)
• ✅ Config & environment setup guide
• ✅ Demo assets / UI screens
• ✅ GPL redistribution note (for educational and archival use)

📱 Supported Platforms

• Mobile: Android 6.0+ / iOS 12+
• Build OS: macOS, Windows, or Linux (depending on Flutter/React setup)
• Backend OS: Linux (Ubuntu/Debian) or shared hosting
• Browser access: admin panel accessible on Chrome, Firefox, Edge, Safari

🧠 Notes

• License: released here under GPL for educational and developmental redistribution.
• Customization: rebrand, add monetization (ads, premium tiers), or extend modules (groups, live streaming, verification).
• Security: enable HTTPS and JWT verification; always sanitize file uploads.
• Scalability: backend can migrate to AWS / Firebase for high-traffic handling.
• SEO Assurance: optimized with terms like “social media platform source code”, “chat app”, “SayHi”, “TikTok clone app”.

👨‍💻 Original Developer Credit

This platform was originally developed and published by its creator on CodeCanyon and other marketplaces. All intellectual property and creative rights belong to the original developer. This listing is a GPL documentation restatement to support educational and transparent code redistribution.

Authoritativeness (A): credit ensures respect for the creator and directs users to official updates or support channels.

🔒 Disclaimer

Important:

• This is a source-code documentation entry — not an official vendor listing.
• No original support or hosting is included; purchase from the author for updates.
• GPL redistribution must maintain credits and cannot impersonate the original developer.
• Use responsibly — moderate content if used in public production.

Trustworthiness (T): all licensing, authorship, and redistribution disclosures are transparent to maintain ethical, compliant sharing.