"Commercial involvement with Mayan is not a problem at all, it is encouraged and the license was changed a while back from GPL to Apache 2.0 to be more commercial friendly."
"Forking and doing specialized versions is not bad and I encourage it, it is the way FLOSS projects grow. If a feature can then be added upstream, we do so, if not, it is made into a 3rd party app or sub project (http://www.mayan-edms.com/ecosystem/)."
"In this case Ranjith offers a customized version with features that we have not been able to included because they are very specific to him and his clients."
"On the other hand was Ranjith is doing is perfectly OK since there is no copyright violation and the terms of the license are being followed. The work he is putting into his fork of Mayan is helping the software get into other markets where the upstream version might not have been a choice. We've been talking and we are looking into backporting some of the more general work he's done in his fork."
https://groups.google.com/d/msg/mayan-edms/D4GdfFG6khM/OhAf9...
https://forum.mayan-edms.com/viewtopic.php?f=7&t=64
https://en.wikipedia.org/wiki/Multi-licensing
Apparently not the first paid fork of Mayan EDMS
https://groups.google.com/forum/#!searchin/mayan-edms/paid|s...
Mayan EDMS is the project upon which Open Paperless is built on. We are now an official Mayan EDMS product!
For more details regarding the acquisition head over to the official announcement https://forum.mayan-edms.com/viewtopic.php?f=2&t=69
