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Overview

This page documents all dependencies required by the AI Video Presentation Generator, including their versions, purposes, and important notes.

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Backend Dependencies (Python)

All backend dependencies are listed in backend/requirements.txt.

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Core Framework

PackageVersionPurpose
fastapi0.115.0Modern, fast web framework for building APIs with Python
uvicorn0.32.0Lightning-fast ASGI server for running FastAPI applications
python-multipart0.0.12Support for form data and file uploads in FastAPI
FastAPI was chosen for its excellent async support, automatic API documentation, and high performance.

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AI & Content Generation

PackageVersionPurpose
google-generativeai0.8.3Google Gemini API for AI-powered content and script generation
Why Gemini?
  • Free tier with generous quotas
  • Excellent content understanding and generation
  • Structured output support for JSON responses
  • Multi-modal capabilities (future enhancement)

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Video & Animation Processing

PackageVersionPurpose
manim0.18.1Mathematical Animation Engine for creating programmatic animations
moviepy≥2.0.0Video editing library for composing slides, audio, and animations
Pillow≥10.0.0Python Imaging Library for slide image creation and manipulation
Manim generates mathematical and educational animations programmatically. It’s the same library used by 3Blue1Brown for YouTube videos.

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Utilities & Configuration

PackageVersionPurpose
python-dotenv1.0.1Load environment variables from .env files
pydantic2.9.2Data validation using Python type annotations
requests2.32.3HTTP library for API calls (Unsplash, Sarvam AI)

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Frontend Dependencies (Node.js)

All frontend dependencies are listed in frontend/package.json.

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Core Framework

PackageVersionTypePurpose
react19.1.1ProductionUI library for building interactive components
react-dom19.1.1ProductionReact renderer for web browsers
vite7.1.7DevelopmentNext-generation frontend build tool with HMR
@vitejs/plugin-react5.0.4DevelopmentOfficial Vite plugin for React Fast Refresh

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UI & Styling

PackageVersionTypePurpose
tailwindcss4.1.14DevelopmentUtility-first CSS framework
@tailwindcss/vite4.1.14ProductionTailwind CSS integration for Vite
lucide-react0.545.0ProductionBeautiful, consistent icon library
Why Tailwind CSS?
  • Rapid UI development
  • Consistent design system
  • Small bundle size with purging
  • Responsive design utilities

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Features & Functionality

PackageVersionTypePurpose
axios1.12.2ProductionHTTP client for API requests
@hello-pangea/dnd18.0.1ProductionDrag-and-drop for slide reordering
pptxgenjs4.0.1ProductionPowerPoint export functionality
gif.js0.2.0ProductionGIF generation for preview thumbnails
@hello-pangea/dnd is the maintained fork of react-beautiful-dnd, used for the slide editor’s drag-and-drop interface.

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Development Tools

PackageVersionPurpose
eslint9.36.0JavaScript/React linting
eslint-plugin-react-hooks5.2.0Enforce React Hooks rules
eslint-plugin-react-refresh0.4.22Ensure HMR compatibility
@types/react19.1.16TypeScript type definitions for React
@types/react-dom19.1.9TypeScript type definitions for ReactDOM
autoprefixer10.4.21Add vendor prefixes to CSS
postcss8.5.6CSS transformation tool

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System Dependencies

These must be installed separately on your system.

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FFmpeg

Version Required: Latest stable (6.0+) Purpose:
  • Video encoding and decoding
  • Audio processing and merging
  • Format conversion
  • Video composition
Installation: Why FFmpeg?
  • Industry-standard video processing
  • Supports all common formats
  • Excellent compression
  • Command-line interface integrates well with MoviePy

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Manim Dependencies

Manim requires additional system libraries:
DependencyPurpose
LaTeXMath equation rendering
Cairo2D graphics rendering
PangoText layout and rendering
These are typically installed automatically with Manim on Windows. On Linux, you may need to install them separately.

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External APIs

The project relies on these external services:

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Google Gemini API

Purpose: AI content and script generation API Key Required: Yes (free tier available) Get API Key: https://makersuite.google.com/app/apikey Rate Limits:
  • 60 requests per minute (free tier)
  • Sufficient for development and moderate usage

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Sarvam AI (Text-to-Speech)

Purpose: Multi-language voice narration API Key Required: Yes Model Used: bulbul:v1 Supported Languages:
  • English
  • Hindi
  • Tamil
  • Telugu
  • Kannada
  • Malayalam
  • Bengali
  • Marathi
  • Gujarati
Why Sarvam AI?
  • Excellent support for Indian languages
  • Natural-sounding voices
  • Good pronunciation of technical terms

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Unsplash API

Purpose: High-quality stock images for slides API Key Required: Yes (free tier available) Get API Key: https://unsplash.com/developers Rate Limits:
  • 50 requests per hour (free tier)
  • Sufficient for typical usage
Why Unsplash?
  • High-quality, curated images
  • Free for development
  • Good search relevance
  • No watermarks

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Dependency Installation

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Quick Install (All at Once)

Backend: 
cd backend
python -m venv venv
venv\Scripts\activate
pip install -r requirements.txt
Frontend: 
cd frontend
npm install

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Updating Dependencies

Backend: 
pip list --outdated
pip install --upgrade <package-name>
Frontend: 
npm outdated
npm update
Always test after updating dependencies, especially major version bumps.

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Development vs Production

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Backend

No difference - same dependencies for both environments.

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Frontend

  • Development: Uses Vite dev server with HMR
  • Production: Build with npm run build creates optimized static files
Production build command: 
npm run build
Preview production build: 
npm run preview

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Troubleshooting Dependencies

Try installing Microsoft Visual C++ Build Tools:
# Or use pre-compiled wheels:
pip install --only-binary :all: <package-name>
Manim has complex dependencies. If it fails:
  1. Ensure you have Visual C++ Build Tools
  2. Try installing Manim Community Edition: pip install manim
  3. Check Manim documentation for platform-specific guides
Use a faster package manager:
# Install pnpm
npm install -g pnpm

# Use pnpm instead
pnpm install
MoviePy requires FFmpeg in PATH:
# Verify FFmpeg is accessible
ffmpeg -version

# If not, add to PATH or set FFMPEG_BINARY environment variable

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Next Steps

Setup Guide

Return to the development setup guide

Troubleshooting

Common issues and solutions

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