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Lemmy: Decentralized Link Aggregator & Forum (Fediverse)

Discover Lemmy: A decentralized, open-source link aggregator and forum alternative powered by the ActivityPub protocol, enabling federated online communities.

Rust
Added on 2025年6月24日
View on GitHub
Lemmy: Decentralized Link Aggregator & Forum (Fediverse) preview
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Project Introduction

Summary

Lemmy is a free and open-source decentralized alternative to platforms like Reddit, built for the fediverse. It allows anyone to host their own instance, creating interconnected communities that can communicate with each other.

Problem Solved

In an era dominated by centralized social media platforms, Lemmy addresses the need for decentralized, community-owned, and censorship-resistant spaces for online discussion and content sharing.

Core Features

Community Creation & Management

Users can create, join, and moderate communities based on shared interests.

Link Aggregation & Discussion

Share links and engage in discussions through comments and threaded replies.

Fediverse Interoperability (ActivityPub)

Interoperate with other Fediverse platforms (like Kbin, Mastodon for some features) via ActivityPub.

Robust Moderation Tools

Comprehensive tools for community moderation, spam filtering, and content management.

Tech Stack

Rust
Actix-Web
PostgreSQL
Diesel ORM
ActivityPub
TypeScript
Preact (Lemmy UI)

使用场景

Lemmy instances can be used for various purposes, from hosting niche communities to building regional forums or specialized content aggregators within the federated network.

Scenario 1: Hosting a Niche Community

Details

Individuals or groups can launch their own Lemmy instance dedicated to a specific hobby, profession, or topic, creating a focused community space.

User Value

Provides a dedicated, controllable, and censorship-resistant platform tailored to a specific interest group.

Scenario 2: Creating a Regional or Local Forum

Details

A city or region can host a Lemmy instance to provide a local forum for residents to share news, discuss local events, and organize.

User Value

Offers a decentralized digital public square for local interaction, outside of corporate platforms.

Scenario 3: Building a Federated Content Aggregator

Details

An organization or news outlet can use Lemmy to aggregate and discuss links related to a specific field, integrating with other Fediverse platforms.

User Value

Creates a decentralized channel for distributing and discussing content, leveraging the reach of the fediverse.

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