I got the impression that Julia is catered to numerical computing domain (data science and alike), not general purpose programming language like Python. Does Julia have a good desktop programming library?

I guess I am wrong. However when I looked at the website (https://julialang.org), in the Ecosystem section, they listed these things:

Visualization, General Purpose, Data Science, Machine Learning, Scientific Domains, Parallel Computing.

I think they should market it in a different way. "General Purpose" should be expanded to "Web Programming", "Desktop Programming", etc.