sojorn/sojorn_docs

Sojorn Platform Documentation

🚀 Production-Ready Social Platform

Version: 3.0 (MVP Complete)
Last Updated: February 17, 2026
Status: ✅ LAUNCH READY

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📋 Quick Start

🎯 What is Sojorn?

Sojorn is a next-generation social platform focused on positive engagement, local community, and privacy-first communication. Built with modern technology and designed for meaningful connections.

🏗️ Architecture Overview

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   Flutter App    │    │   Go Backend    │    │  PostgreSQL     │
│                 │◄──►│                 │◄──►│                 │
│ • Mobile/Web     │    │ • REST API      │    │ • User Data     │
│ • Riverpod       │    │ • Business Logic│    │ • Posts         │
│ • Material UI    │    │ • E2EE Chat      │    │ • Groups         │
└─────────────────┘    └─────────────────┘    └─────────────────┘
         │                       │                       │
         ▼                       ▼                       ▼
┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│ Cloudflare R2   │    │   Nginx Proxy   │    │   OpenAI API    │
│                 │    │                 │    │                 │
│ • Media Storage  │    │ • SSL/TLS       │    │ • AI Moderation │
│ • CDN            │    │ • Load Balance  │    │ • Content Safety│
└─────────────────┘    └─────────────────┘    └─────────────────┘

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🎨 Core Features (All Completed)

🎬 Quips Video System - TikTok-Level Recording

• ✅ Multi-segment recording with pause/resume
• ✅ Speed control (0.5x, 1x, 2x, 3x)
• ✅ Real-time filters and effects
• ✅ Text overlays with positioning
• ✅ Music/audio overlay from library
• ✅ Advanced video processing with FFmpeg

Files: sojorn_app/lib/screens/quips/create/enhanced_quip_recorder_screen.dart

📍 Beacon System - Local Safety & Community

• ✅ Map view with clustered pins
• ✅ 5 beacon categories (Safety, Community Need, Lost & Found, Events, Mutual Aid)
• ✅ Verified/official source badges
• ✅ "How to help" action items
• ✅ Neighborhood/radius filtering
• ✅ Confidence scoring system

Files: sojorn_app/lib/screens/beacon/enhanced_beacon_detail_screen.dart

🎨 Profile Widgets - Modular Customization

• ✅ Draggable widget grid system
• ✅ 10 widget types (Pinned Posts, Music, Photos, Social Links, etc.)
• ✅ 6 theme options with accent colors
• ✅ JSON layout storage
• ✅ Size constraints and design boundaries

Files: sojorn_app/lib/widgets/profile/draggable_widget_grid.dart

🚫 Blocking System 2.0 - Cross-Platform Compatibility

• ✅ Import/Export block lists (JSON, CSV)
• ✅ Platform compatibility (Twitter/X, Mastodon)
• ✅ Bulk block operations
• ✅ Validation and deduplication
• ✅ Statistics dashboard

Files: sojorn_app/lib/services/blocking_service.dart

🔄 Feed Amplification - Smart Content Discovery

• ✅ 4 repost types (Standard, Quote, Boost, Amplify)
• ✅ Weighted engagement algorithm
• ✅ Real-time analytics dashboard
• ✅ Trending content discovery
• ✅ User boost limits and controls

Files: sojorn_app/lib/services/repost_service.dart

🧠 Algorithm Overhaul - Positive Engagement Weighting

• ✅ 5-factor scoring system (Engagement, Quality, Recency, Network, Personalization)
• ✅ Weighted engagement metrics
• ✅ Content quality analysis
• ✅ Time decay algorithm
• ✅ Personalization engine

Files: go-backend/internal/services/feed_algorithm_service.go

🔐 E2EE Chat System - Device Sync & Security

• ✅ QR code device verification
• ✅ Cross-device key synchronization
• ✅ RSA key pair generation
• ✅ Device management interface
• ✅ Message encryption/decryption

Files: sojorn_app/lib/services/e2ee_device_sync_service.dart

🤖 AI Moderation - Content Safety

• ✅ OpenAI Vision API integration
• ✅ FFmpeg video frame extraction
• ✅ Real-time content analysis
• ✅ Three Poisons scoring system
• ✅ Automated flagging and appeals

Files: go-backend/internal/services/azure_openai_service.go

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📚 Documentation Structure

🎯 Core Guides

DEVELOPMENT_COMPREHENSIVE.md

Complete development setup, architecture patterns, and coding standards.

DEPLOYMENT_COMPREHENSIVE.md

Production deployment, monitoring, and maintenance procedures.

E2EE_COMPREHENSIVE_GUIDE.md

End-to-end encryption implementation and security architecture.

AI_MODERATION_IMPLEMENTATION.md

AI-powered content moderation system with OpenAI integration.

TROUBLESHOOTING_COMPREHENSIVE.md

Comprehensive troubleshooting guide for all platform features.

📁 Organized Documentation

🚀 Deployment (deployment/)

• QUICK_START.md - New developer onboarding
• SETUP.md - Complete environment setup
• VPS_SETUP_GUIDE.md - Server infrastructure
• SEEDING_SETUP.md - Database seeding
• R2_CUSTOM_DOMAIN_SETUP.md - Media storage
• DEPLOYMENT.md - Production deployment
• DEPLOYMENT_STEPS.md - Step-by-step guide

🎨 Features (features/)

• IMAGE_UPLOAD_IMPLEMENTATION.md - Media upload system
• notifications-troubleshooting.md - Push notifications
• posting-and-appreciate-fix.md - Post interactions
• QUIPS_VIDEO_SYSTEM.md - Video recording system
• BEACON_SYSTEM.md - Local safety features
• PROFILE_WIDGETS.md - Modular profiles
• BLOCKING_SYSTEM.md - User blocking
• FEED_AMPLIFICATION.md - Content discovery
• ALGORITHM_SYSTEM.md - Feed ranking
• E2EE_CHAT_SYSTEM.md - Encrypted messaging

🏗️ Architecture (design/)

• DESIGN_SYSTEM.md - UI/UX guidelines
• CLIENT_README.md - Flutter architecture
• database_architecture.md - Database schema
• API_DESIGN.md - REST API patterns

📖 Reference (reference/)

• PROJECT_STATUS.md - Current development status
• NEXT_STEPS.md - Planned improvements
• SUMMARY.md - Platform overview
• API_REFERENCE.md - Complete API documentation

💭 Philosophy (philosophy/)

• CORE_VALUES.md - Platform principles
• UX_GUIDE.md - User experience guidelines
• FOURTEEN_PRECEPTS.md - Development precepts
• ALGORITHM_PHILOSOPHY.md - Feed ranking principles

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🔧 Development Setup

Prerequisites

• Go: 1.21+ (Backend)
• Flutter: 3.16+ (Frontend)
• PostgreSQL: 15+ (Database)
• Docker: 20+ (Optional deployment)

Quick Start

# Clone repository
git clone https://git.mp.ls/patrick/sojorn.git
cd sojorn

# Backend setup
cd go-backend
cp .env.example .env
# Configure database and API keys
go mod download
go run cmd/api/main.go

# Frontend setup
cd ../sojorn_app
flutter pub get
flutter run

Environment Variables

# Database
DATABASE_URL=postgresql://user:pass@localhost:5432/sojorn

# APIs
OPENAI_API_KEY=sk-...
AZURE_OPENAI_KEY=...
CLOUDFLARE_R2_TOKEN=...

# Security
JWT_SECRET=your-secret-key
ENCRYPTION_KEY=your-encryption-key

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🚀 Production Deployment

Infrastructure Requirements

• Server: Ubuntu 22.04 LTS (4GB+ RAM)
• Database: PostgreSQL 15+ with PostGIS
• Web Server: Nginx with SSL/TLS
• Storage: Cloudflare R2 (or S3-compatible)

Deployment Steps

1. Server Setup: Follow deployment/VPS_SETUP_GUIDE.md
2. Database Setup: Install PostgreSQL and run migrations
3. Application Deploy: Use deployment/DEPLOYMENT.md
4. Monitoring: Set up health checks and alerts
5. SSL/TLS: Configure certificates with Certbot

Health Checks

• API Health: GET /health
• Readiness: GET /ready
• Liveness: GET /live
• Metrics: GET /metrics

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🔒 Security Features

Authentication & Authorization

• ✅ JWT-based authentication with refresh tokens
• ✅ Role-based access control
• ✅ Rate limiting and DDoS protection
• ✅ Secure password hashing (bcrypt)

Data Protection

• ✅ End-to-end encryption for chat (X3DH)
• ✅ Encrypted data storage
• ✅ Secure key management
• ✅ GDPR compliance features

Content Safety

• ✅ AI-powered content moderation
• ✅ NSFW content filtering
• ✅ User reporting system
• ✅ Admin moderation queue

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📱 Platform Support

Web Browsers

• ✅ Chrome 90+
• ✅ Firefox 88+
• ✅ Safari 14+
• ✅ Edge 90+

Mobile Platforms

• ✅ Android 8.0+ (API 26+)
• 🚧 iOS 14+ (In Development)

Features by Platform

Feature	Web	Android	iOS
Core Feed	✅	✅	🚧
E2EE Chat	✅	✅	🚧
Video Recording	✅	✅	🚧
Push Notifications	✅	✅	🚧
Local Beacons	✅	✅	🚧

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📊 Performance Metrics

API Performance

• Response Time: < 200ms (95th percentile)
• Throughput: 1000+ requests/second
• Uptime: 99.9% SLA
• Database: < 50ms query time

Mobile Performance

• App Load: < 3 seconds cold start
• Memory Usage: < 200MB average
• Battery: Optimized for background tasks
• Network: Efficient data sync

Monitoring & Alerts

• Health Checks: Real-time system monitoring
• Error Tracking: Comprehensive error logging
• Performance: APM integration ready
• Security: Threat detection and alerts

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🤝 Contributing

Development Workflow

1. Fork the repository
2. Branch: feature/your-feature-name
3. Code: Follow development standards
4. Test: Include unit and integration tests
5. PR: Submit with description and testing

Code Standards

• Go: Follow Go conventions and golangci-lint
• Flutter: Follow Dart style guide and flutter_lints
• Database: Use migrations for schema changes
• Documentation: Update docs for new features

Testing Requirements

• Unit Tests: 80%+ coverage
• Integration Tests: Critical path coverage
• E2E Tests: User journey validation
• Performance: Load testing for APIs

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📞 Support & Community

Getting Help

• Documentation: Check relevant guides first
• Issues: Create GitHub issue with details
• Discussions: Use GitHub Discussions for questions
• Security: Report to security@sojorn.app

Community Resources

• Discord: Join our Discord
• Twitter: @sojorn_platform
• Blog: sojorn.app/blog
• Newsletter: Monthly updates and features

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📜 License & Legal

License

• Code: MIT License
• Documentation: Creative Commons BY-SA
• Assets: Proprietary (see asset license)

Privacy Policy

• Data Collection: Minimal and transparent
• User Rights: GDPR and CCPA compliant
• Data Retention: 30 days for deleted accounts
• International: Data residency options

Terms of Service

• Content Policy: Community guidelines
• Prohibited Content: Clear rules and enforcement
• Intellectual Property: User-owned content
• Dispute Resolution: Fair and transparent process

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🗺️ Roadmap

✅ Completed (v3.0)

• All core features implemented
• Production-ready deployment
• Comprehensive testing suite
• Security audit completed

🚧 In Progress (v3.1)

• iOS mobile application
• Advanced analytics dashboard
• Enhanced moderation tools
• Performance optimizations

📋 Planned (v4.0)

• Real-time collaboration features
• Advanced E2EE capabilities
• Multi-language support
• Enterprise features

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🎉 Sojorn is ready for production deployment!

For specific implementation details, see the comprehensive guides in the respective directories.