Opensource version?

[tnys]

Hi,

I read on your documentation that Dodona is switching to a payment model whereby the app is requiring a subscription per student. Is there an opensource version of Dodona available which we can host on our own server, in order to keep student costs free?

I do understand lots of resources are spent on developing Dodona, though migrating Dodona to a (commercial) spin-off just doesn't seem right..

Thanks
Tom