### Installing Pre-commit Hooks for Development

Source: https://github.com/humeai/expressive-tts-arena/blob/main/README.md

Command for setting up pre-commit hooks to automatically perform linting, formatting, and type-checking on code before commits, which is recommended for contributors to the project.

```bash
uv run pre-commit install
```

--------------------------------

### Running the Application with Python and UV Package Manager

Source: https://github.com/humeai/expressive-tts-arena/blob/main/README.md

Commands for running the Expressive TTS Arena application using the UV package manager, including a standard launch option and an alternative with hot-reloading for development.

```bash
uv run python -m src.main
```

```bash
uv run watchfiles "python -m src.main" src
```

--------------------------------

### Configuring Environment Variables for API Keys

Source: https://github.com/humeai/expressive-tts-arena/blob/main/README.md

Sample configuration for the .env file showing required API keys for the various text-to-speech providers used in the application. This must be set up before running the application.

```txt
HUME_API_KEY=YOUR_HUME_API_KEY
ANTHROPIC_API_KEY=YOUR_ANTHROPIC_API_KEY
ELEVENLABS_API_KEY=YOUR_ELEVENLABS_API_KEY
OPENAI_API_KEY=YOUR_OPENAI_API_KEY
```

--------------------------------

### Displaying Project Structure with Directory Tree

Source: https://github.com/humeai/expressive-tts-arena/blob/main/README.md

A directory tree representation showing the organization of the Expressive TTS Arena project, highlighting key folders and files with their purposes as comments.

```bash
Expressive TTS Arena/
├── public/
├── src/
│   ├── common/
│   │   ├── __init__.py
│   │   ├── common_types.py         # Application-wide custom type aliases and definitions.
│   │   ├── config.py               # Manages application config (Singleton) loaded from env vars.
│   │   ├── constants.py            # Application-wide constant values.
│   │   ├── utils.py                # General-purpose utility functions used across modules.
│   ├── core/
│   │   ├── __init__.py
│   │   ├── tts_service.py          # Service handling Text-to-Speech provider selection and API calls.
│   │   ├── voting_service.py       # Service managing database operations for votes and leaderboards.
│   ├── database/                   # Database access layer using SQLAlchemy.
│   │   ├── __init__.py
│   │   ├── crud.py                 # Data Access Objects (DAO) / CRUD operations for database models.
│   │   ├── database.py             # Database connection setup (engine, session management).
│   │   └── models.py               # SQLAlchemy ORM models defining database tables.
│   ├── frontend/
│   │   ├── components/
│   │   │   │   ├── __init__.py     
│   │   │   │   ├── arena.py        # UI definition and logic for the 'Arena' tab.
│   │   │   │   ├── leaderboard.py  # UI definition and logic for the 'Leaderboard' tab.
│   │   ├── __init__.py
│   │   ├── frontend.py             # Main Gradio application class; orchestrates UI components and layout.
│   ├── integrations/               # Modules for interacting with external third-party APIs.
│   │   ├── __init__.py
│   │   ├── anthropic_api.py        # Integration logic for the Anthropic API.
│   │   ├── elevenlabs_api.py       # Integration logic for the ElevenLabs API.
│   │   └── hume_api.py             # Integration logic for the Hume API.
│   ├── middleware/
│   │   ├── __init__.py
│   │   ├── meta_tag_injection.py   # Middleware for injecting custom HTML meta tags into the Gradio page.
│   ├── scripts/
│   │   ├── __init__.py
│   │   ├── init_db.py              # Script to create database tables based on models.
│   │   ├── test_db.py              # Script for testing the database connection configuration.
│   ├── __init__.py
│   ├── main.py                     # Main script to configure and run the Gradio application.
│── static/
│   ├── audio/                      # Temporary storage for generated audio files served to the UI.
│   ├── css/
│   │   ├── styles.css              # Custom CSS overrides and styling for the Gradio UI.
├── .dockerignore
├── .env.example
├── .gitignore
├── .pre-commit-config.yaml
├── Dockerfile
├── LICENSE.txt
├── pyproject.toml
├── README.md
├── uv.lock
```

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