Ganymede

Ganymede is a self-hosted archiving platform for Twitch VODs and live streams. It downloads video and chat, provides a real-time chat playback experience, and generates a rendered chat output alongside each archive. Archives are stored in a simple, portable file structure intended to remain usable outside the application.

Key Features

• Archive Twitch VODs and ongoing live streams
• Real-time chat playback synchronized with video
• Rendered chat export for viewing independently of the web UI
• Watch channels for automatic archiving with filtering options
• Video and chat processing controls, including custom FFmpeg parameters
• User, channel, and VOD management with progress saving and playlists
• Recoverable queue system for downloads and processing jobs
• Optional SSO via OAuth/OpenID Connect, plus local user management
• Webhook notifications for events

Use Cases

• Long-term preservation of Twitch channels, streams, and associated chat
• Building a personal or community on-prem media archive with metadata and playback
• Automating stream capture and post-processing workflows for creators

Limitations and Considerations

• Twitch API credentials are required to download VODs/live streams
• Storage and bandwidth requirements can be significant for large archives

Ganymede suits homelab and archival-focused setups that want reliable Twitch capture plus a high-fidelity chat replay experience. Its portable output structure and configurable processing make it practical for long-term retention and external playback.