KonfDB is licensed under General Public License v3. In a nutshell,
You may copy, distribute and modify the software as long as you track changes/dates of in source files and keep modifications under GPL. You can distribute your application using a GPL library commercially, but you must open-source it under GPLv3.
Can I use this inside my organization?
Can I use this in my hobby project?
Can you help me understand this license?
There is a lot of content on the Internet to explain this license, so best to google it. Few links that Google brought up and I found interesting are