#Lightbend (driving force behind the #Scala programming language) is making #Akka actor-based programming model a proprietary project.
They are moving from #Apache 2.0 to Business Source License (BSL) v1.1
> Sadly, open source is prone to the infamous “Tragedy of the commons”, which shows that we are prone to act in our self-interest [..]
They call their new model 'Sustainable Open Source'
> This means that companies using the software for profit need to give something back
so: Proprietary