Pleroma

Pleroma is a lightweight, self-hostable federated social networking server for microblogging. It implements ActivityPub to communicate with other Fediverse platforms, enabling users and communities to run their own instances while still participating in a wider social network.

Key Features

• ActivityPub federation with other compatible Fediverse servers
• Multiple web frontends available (including the official Pleroma FE and alternative UIs)
• Supports local timelines and federated timelines for discovery and community interaction
• Designed to be resource-efficient compared to many other federated social servers
• Instance-based hosting model with administrative and moderation controls

Use Cases

• Host a community-run social server that federates with the wider Fediverse
• Run a personal microblogging instance with full control over data and policies
• Provide an alternative server implementation for ActivityPub-based social networking

Limitations and Considerations

• Feature sets and user experience can depend heavily on the chosen frontend
• Federation behavior and compatibility may vary across different ActivityPub implementations

Pleroma is well-suited for individuals and communities that want a smaller, efficient Fediverse server without giving up federation. With flexible frontend choices and a focus on lightweight operation, it can fit a wide range of hosting environments.