Technical Manual

Welcome to the Lakra Technical Manual! This manual is designed for developers, system administrators, and technical users who want to understand, modify, or deploy the Lakra system.

Note

This manual covers the technical architecture, implementation details, and development workflow for Lakra.

Who This Manual Is For

• Developers: Building new features or modifying existing code

• System Administrators: Deploying and maintaining Lakra instances

• Technical Leads: Understanding architecture and design decisions

• Contributors: Contributing to the Lakra project

Contents

• Architecture
  • Overview
  • Architecture Principles
  • Frontend Architecture
  • Backend Architecture
  • Authentication Flow
  • Data Flow Patterns
  • Performance Optimizations
  • Security Architecture
  • Scalability Considerations
  • Monitoring and Observability
  • Deployment Architecture
  • Future Architecture Enhancements
  • See Also
• Database Schema
  • Overview
  • Core Tables
  • Relationships
  • Database Functions and Triggers
  • Indexes for Performance
  • Data Migrations
  • Backup and Recovery
  • See Also
• API Reference
  • Overview
  • Authentication
  • Sentences
  • Annotations
  • Evaluations
  • Quality Assessments
  • Admin Functions
  • Storage (Voice Recordings)
  • Error Handling
  • Real-Time Subscriptions
  • Rate Limiting
  • Best Practices
  • See Also
• Components
  • Component Organization
  • Authentication Components
  • Layout Components
  • Modal Components
  • Page Components
  • UI Components
  • Component Patterns
  • Styling
  • Component Best Practices
  • Testing Components
  • See Also
• Development Guide
  • Prerequisites
  • Initial Setup
  • Project Structure
  • Available Scripts
  • Development Workflow
  • Code Style
  • Adding New Features
  • Database Migrations
  • Testing
  • Debugging
  • Performance Optimization
  • Documentation
  • Contributing
  • Resources
  • See Also
• Deployment Guide
  • Deployment Overview
  • Recommended Architecture
  • Frontend Deployment
  • Backend Deployment (Supabase)
  • Security Hardening
  • Performance Optimization
  • Monitoring
  • CI/CD Pipeline
  • Deployment Checklist
  • Scaling Considerations
  • Maintenance
  • Troubleshooting
  • Resources
  • See Also

## Tech Stack Overview

Frontend:

• React 19 - UI library

• TypeScript - Type-safe JavaScript

• Vite - Build tool and dev server

• TailwindCSS - Utility-first CSS framework

• React Router - Client-side routing

Backend:

• Supabase - Backend-as-a-service

• PostgreSQL - Relational database

• Row Level Security - Database-level access control

• Supabase Auth - Authentication service

• Supabase Storage - File storage for voice recordings

Quick Links

• Architecture - System architecture and design

• Database Schema - Complete database schema

• API Reference - API documentation

• Development Guide - Development setup and workflow

• Deployment Guide - Production deployment guide

Getting Started for Developers

1. Clone the repository

2. Install dependencies: npm install

3. Configure environment: Set up .env file with Supabase credentials

4. Run migrations: Set up database schema in Supabase

5. Start dev server: npm run dev

See the Development Guide guide for detailed instructions.

Contributing

We welcome contributions! See the CONTRIBUTING.md file in the repository root for:

• Code style guidelines

• Branching strategy

• Pull request process

• Testing requirements

Support

For technical support:

• Issues: GitHub Issues for bug reports

• Discussions: GitHub Discussions for questions

• Documentation: This technical manual

• User Support: See the User Manual for end-user documentation