joshuakgoldberg/mastodon

Analysis updated 2026-07-05 · repo last pushed 2024-05-11

RubyAudience · ops devopsComplexity · 4/5DormantLicenseSetup · hard

Mindmap

mindmap
  root((repo))
    What it does
      Social microblogging
      Federation across servers
      Content moderation tools
    Tech stack
      Ruby on Rails
      React frontend
      Node.js streaming
      PostgreSQL and Redis
    Use cases
      Niche social community
      Build fediverse apps
      Data ownership control
    Audience
      Community founders
      Developers
      Organizations

mindmap root((repo)) What it does Social microblogging Federation across servers Content moderation tools Tech stack Ruby on Rails React frontend Node.js streaming PostgreSQL and Redis Use cases Niche social community Build fediverse apps Data ownership control Audience Community founders Developers Organizations

Click or tap to explore — scroll the page freely

What do people build with it?

USE CASE 1

Launch your own niche social network for a hobby group, professional network, or local organization.

USE CASE 2

Build a custom client app or integrate with the social network using the provided REST API.

USE CASE 3

Host a community on infrastructure you control to maintain full ownership of user data.

USE CASE 4

Set up a moderated social space with built-in blocking, muting, filtering, and reporting tools.

What is it built with?

RubyRuby on RailsReactNode.jsPostgreSQLRedis

How does it compare?

	joshuakgoldberg/mastodon	snatchev/deliver	mastodon/webpush
Stars	—	—	2
Language	Ruby	Ruby	Ruby
Last pushed	2024-05-11	2015-11-24	2025-01-13
Maintenance	Dormant	Dormant	Stale
Setup difficulty	hard	moderate	moderate
Complexity	4/5	2/5	2/5
Audience	ops devops	developer	developer

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · hard Time to first run · 1h+

Requires provisioning PostgreSQL and Redis alongside the application, plus configuring deployment across multiple platform options.

You can use and modify this software freely, but if you make it available to others over a network you must share your source code under the same license.

In plain English

Mastodon is an open-source social network platform that lets you run your own microblogging community, think of it as a Twitter-like service that you control. Users can post text, links, images, and short videos, follow people, and scroll through a real-time chronological timeline. The key difference from typical social media is that no single company owns or controls the entire network. What makes it distinctive is federation. Individual Mastodon servers can talk to each other, so someone on your server can follow and interact with someone on a completely different server, even one running different software, as long as it speaks the same underlying protocol (called ActivityPub). You can also moderate your own community, set your own rules, and keep data on infrastructure you trust. Built-in safety tools include private posts, locked accounts, content filtering, muting, blocking, and a reporting system for moderation. This repo would appeal to a few different groups. A founder who wants to launch a niche social community, say, for a hobby group, professional network, or local organization, could set up their own instance rather than relying on a platform like X or Facebook. A developer interested in the fediverse (the broader network of interconnected servers) could build apps on top of it, since it provides a REST API and supports third-party clients. Organizations concerned about data ownership and platform independence would also find it relevant. The project is built with Ruby on Rails for the backend and API, React for the dynamic frontend, and Node.js for real-time streaming. It requires a PostgreSQL database and Redis, and the repo includes deployment configurations for several platforms. The README provides setup instructions for local development on macOS, Docker, Vagrant, and GitHub Codespaces, so contributors can get started relatively quickly in whichever environment they prefer. The project is free and open-source under the AGPLv3 license, and contributors can even request payment through OpenCollective if their work is accepted.

Copy-paste prompts

Prompt 1

I want to set up my own Mastodon social network instance using Docker. Walk me through the steps to get it running locally and explain what PostgreSQL and Redis are used for.

Prompt 2

Help me build a simple app that reads the latest posts from a Mastodon account using its REST API. Start with how to authenticate and fetch a timeline.

Prompt 3

I am comparing Mastodon to traditional social platforms for my organization. Explain how federation works and why it matters for data ownership and content moderation.

Prompt 4

Generate a configuration for deploying a Mastodon instance to a cloud server, including setting up the database, Redis, and environment variables.

Frequently asked questions

What is mastodon?

Mastodon is an open-source social network platform that lets you run your own Twitter-like community. Different servers can connect and talk to each other, so users across communities can interact.

What language is mastodon written in?

Mainly Ruby. The stack also includes Ruby, Ruby on Rails, React.

Is mastodon actively maintained?

Dormant — no commits in 2+ years (last push 2024-05-11).

What license does mastodon use?

You can use and modify this software freely, but if you make it available to others over a network you must share your source code under the same license.

How hard is mastodon to set up?

Setup difficulty is rated hard, with roughly 1h+ to a first successful run.

Who is mastodon for?

Mainly ops devops.

Open on GitHub → Explain another repo

This repo across BitVibe Labs

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