Welcome to OPOSSO!

The software world goes subscription. Releases don’t matter any more and continuous delivery rules. OPOSSO by SerNet offers an open and flexible management platform for subscription organization:

A software vendor can create subscription keys within OPOSSO for any downloadable goods and sell them at any shop. Customers can activate their subscription keys in OPOSSO and receive the goods electronically within the subscription period.

OPOSSO is licensed under AGPLv3 and sources will be published at GitHub in June 2016. Ready to run packages for Debian are available as software subscription (what else!) for reasonable fees after the initial release.

Our partner beclever will offer web packages, starting in August 2016: Your own OPOSSO out-of-the-box – no setup hassle.

If you wish to see OPOSSO at work, visit oposso.samba.plus, a productive platform that organizes all subscription keys sold at shop.samba.plus.

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supported by
supported by

Runs on Linux –
what else!

Everything is ready if you like Debian ♥

Commercial Software
Open Source!

It’s fun to buy open source software!

Published for Developers
at GitHub!

Publish or perish!™

Subscription Management

OPOSSO can be utilized for any electronically delivered goods: source code, ready to run software, documentation, libraries, whatever. SerNet uses OPOSSO to sell SAMBA+ – a special brand of Samba. More examples will follow.

Professional and easy-to-use

Fast setup and installation

Highly customizable

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Our packages

OPOSSO Subskription

1.500 €pro Jahr

  • Bezug der Software
  • alle Updates und Upgrades
  • Format: Software-Pakete für Debian Linux

OPOSSO Hosting

950 €pro Monat

  • Nur in Verbindung mit einer Buchung des
    OPOSSO Full Package
  • Pflege von Webshop, OPOSSO und Download-Server
  • 3 Server an schneller Datenanbindung
  • alle Updates und Upgrades
  • 5 Stunden Support pro Monat inkl.


We’re happy about feedback regarding OPOSSO!

Your Details

Which package are you interested in?

How can we help?

Feel free to ask a question or simply leave us a comment.


SerNet GmbH
Bahnhofsallee 1b
37081 Göttingen


Commercial Register:
HRB 2816, Amtsgericht Göttingen
VAT ID: DE186981087

CEO: Dr. Johannes Loxen

SerNetOPOSSO, Samba and verinice are registered trademarks of SerNet GmbH in Germany and other countries. For more detailed information please see the SerNet Imprint.