y4my4my4m

y4my4my4m / harmony

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Federated social app: Discord-style servers and chat with ActivityPub. Vue 3 + Supabase + Tauri.

mony.lol
14
0
100% credibility
Found May 27, 2026 at 14 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

Harmony is an open-source federated social platform that combines Discord-style servers and chat with ActivityPub federation. It allows users to create communities with text channels, voice/video calls, and direct messages, while also connecting with users on other platforms like Mastodon or Misskey. The platform includes end-to-end encryption for private conversations, a bot API for automation, and tools for bridging with other chat platforms like Discord. It can be self-hosted or used on existing instances.

How It Works

1
👋 Discover Harmony

You hear about a new social platform that works like Discord but connects with other networks like Mastodon.

2
📝 Create Your Account

You sign up and set up your profile with a username and avatar, either on the main community or your own server.

3
🏠 Join or Create a Server

You either join an existing server using an invite link or create your own space for your community.

4
💬 Chat in Channels

You chat with friends in text channels, create threads for specific topics, and react with emojis to messages.

5
🌐 Connect Across Platforms

You discover that your friend on a different platform can see and respond to your messages through federation.

6
Add Automation
🤖
Add a Bot

You install a bot that can play music, manage roles, or provide useful features for your community.

🔗
Bridge Platforms

You connect your Harmony server to a Discord server so members on both platforms can chat together.

🎉 Your Community Thrives

Your server is alive with conversation, members can join from anywhere, and automation makes everything run smoothly.

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Star Growth

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AI-Generated Review

What is harmony?

Harmony is a federated social app that brings Discord-style servers, channels, DMs, threads, and voice chat together with ActivityPub federation. Think of it as a chat platform where your server can have members from other instances, and you can follow users on Mastodon or Misskey without leaving. Built in TypeScript with Vue 3 for the frontend, Supabase for data and auth, and Tauri for a native desktop app -- all from the same codebase.

The project runs on a modular architecture: the main app handles real-time chat while a separate federation backend service manages ActivityPub delivery, WebFinger lookups, and cross-instance communication. Redis powers the job queue for reliable federation delivery.

Why is it gaining traction?

The killer feature is bridging two worlds that usually don't talk: Discord's familiar chat UX and the Fediverse's open social web. Communities can self-host their Discord replacement while still interacting with the wider ActivityPub ecosystem. The built-in Discord bridge allows bidirectional message sync between Harmony servers and Discord servers -- useful during migration periods or for mixed communities.

The bot gateway exposes a Discord-compatible REST API and WebSocket gateway, making it relatively straightforward to port existing bots or build new integrations.

Who should use this?

Self-hosters and community admins tired of Discord's terms of service who want federation without sacrificing UX. Developers building on ActivityPub who need a chat-first foundation rather than a Twitter clone. Privacy-focused communities requiring end-to-end encryption with cross-device key sharing.

Not ready for: teams needing production-grade stability, or anyone who needs extensive third-party bot support.

Verdict

This is ambitious, well-architected, and genuinely solves a real gap in the Fediverse. The codebase demonstrates solid engineering -- caching strategies, graceful shutdown handling, race-condition fixes documented inline.

But with 14 stars and a 1.0% credibility score, treat it as an early-stage project with promise. The feature surface is impressive, but maturity signals (test coverage, documentation completeness, battle-tested infrastructure) need time to develop. Worth watching and contributing to, not yet worth betting your community on.

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