OK, then I should out myself: I am part of the FreeCAD association. We have funding channels and use the money we get for different purposes. Some to pay development, some to fix bugs but always some to make PR, people making blog posts, videos, or even those who improve our Wiki. The latter turned out to be very successful because in a time at which people use AI search engines, you always get a solution as the bots are aware of the Wiki.
For Julia there is no Wiki where for example people like me could post their info. For example once I started with FreeCAD, there were no Windows developers. I went through the issues and whenever I solved a problem, I documented for others how to do things. And by time we got more and more developers on Windows, because you can now just strictly follow all these steps and will get a running FreeCAD and can start coding.
Or we paid persons to document what you can do with FEM. And now, 2 years later we have a nice and active community using and improving that part of FreeCAD. I often say “an undocumented feature is an unused feature” so looking back at my work for FreeCAD, I spent most of my time in documenting rather than actually coding.
Julia is much bigger than FreeCAD as far as I can tell and there should be funding available to setup, maintain and also fill a Wiki.