After having used the software for a little longer and creating quite a sizeable amount of content within it I can say with confidence that Nebulous is a very well constructed worldbuilding organizer. The configurability granted among creating elements is not too basic, nor is it too complex after learning how to do so. The interfaces with time become very intuitive and its design keeps a sort of appeal to everything in a way almost like designing cards which is quite fun. Overall a good system executed with good quality control.

I give the software a 4/5 as while not necessarily lacking, feels like it needs a tiny little nudge from some optional quality of life features. They are not necessary additions but would be a much appreciated touch in the future.

The most important nudge I think being the addition of a more expansive text editor or rather an "advanced" drop down for more special option perhaps. Something like the Smart chips in google docs seems like a good example, or the charts that docs allows you to create.

Media elements are an obvious must as well but I'm sure that was already a part of the plan for something like this eventually. As a sfx artist, customization among adding sounds like how a custom wiki does would be wonderous.

Aside from this I highly encourage giving nebulous a shot for those looking for a reliable tool that's compact, and otherwise a well made organizer for universe building!