@preslavrachev I use a tool of my own creation called #Forester.
Tutorial: http://www.jonmsterling.com/jms-0052.xml
Manifesto: http://www.jonmsterling.com/tfmt-0001.xml
Project page: http://www.jonmsterling.com/jms-005P.xml
(These pages are part of the public-facing projection of my "forest" / Zettelkasten.)