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openSUSE/osem

A Rails-based event management tool for organizing Free and Open Source Software conferences, covering call for papers, schedules and attendee registration.

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What is it?

OSEM (Open Source Event Manager) is an event management application built with Ruby on Rails and tailored to Free and Open Source Software conferences. It is designed to help conference organizers run the event lifecycle from one place.

The project is maintained under the openSUSE organization and is distributed under the MIT license. Installation instructions are provided in its INSTALL guide, and a public demo instance is available for trying the interface before deploying it.

The repository is aimed at teams who run community conferences and want a self-hostable tool rather than a general-purpose ticketing service. Contributors are directed to a contributing guide, and discussion happens through GitHub issues and an IRC channel.

Key features

  • 01Built on Ruby on Rails with a self-hostable deployment
  • 02Tailored workflows for FOSS conference events
  • 03Installation guide and public demo instance available
  • 04MIT-licensed and maintained under the openSUSE organization

Use cases

  • Organizing a community or open source conference that needs a self-hosted event platform
  • Evaluating event management software for a FOSS event before deployment
  • Customizing a Rails-based conference site for a specific project's community

Quick start

  1. 1

    Read the installation guide (INSTALL.md)

  2. 2

    Try the demo instance at osem.copyleft.dev

In collections

Self-hosted apps

Topics

#event-management#conference#rails#ruby#scheduling#self-hosted#conferences#events#hacktoberfest#osem

FAQ

What is osem?
A Rails-based event management tool for organizing Free and Open Source Software conferences, covering call for papers, schedules and attendee registration. OSEM (Open Source Event Manager) is an event management application built with Ruby on Rails and tailored to Free and Open Source Software conferences. It is designed to help conference organizers run the event lifecycle from one place.
Is osem free to use? What license does it have?
osem is open source under the MIT license. Check the license terms before using it in commercial products.
Is osem still maintained?
Actively maintained. The last commit to osem was on Nov 6, 2026.
What can I use osem for?
Organizing a community or open source conference that needs a self-hosted event platform Evaluating event management software for a FOSS event before deployment Customizing a Rails-based conference site for a specific project's community
How do I install osem?
Read the installation guide (INSTALL.md) Try the demo instance at osem.copyleft.dev
Where can I get osem?
The source code and installation instructions are on GitHub: https://github.com/openSUSE/osem

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