Lemmy

Lemmy is a self-hosted social link aggregation and discussion platform that puts you in complete control of your online community. Unlike centralized platforms, Lemmy is completely free and open-source, with no advertising, tracking, or secret algorithms manipulating your content.

Key Features:

• Federation support - Connect with communities across different servers in the fediverse
• Powerful moderation tools - Set your own policies to maintain a healthy environment
• Blazing fast performance - Built with modern frameworks for optimal speed
• Mobile-friendly interface - Clean design that works seamlessly on all devices
• Full vote scoring - Traditional upvote/downvote system like classic Reddit
• Rich content support - Image uploads, emojis, user/community tagging
• Multiple themes - Light, dark, and solarized options
• RSS/Atom feeds - Stay updated with all, subscribed, inbox, user, and community feeds
• Data ownership - Full control over your content with complete data erasure options

Perfect for communities wanting censorship resistance and true ownership of their discussions. Deploy easily via Docker or Ansible, and join the growing network of federated communities where users can subscribe and interact across different servers while maintaining their independence.