I have still yet to find an IDE for Julia that works well on all platforms, JupyterLab included. In fact, I have to say that my experience with JupyterLab was one of the worst. I couldn’t really see the advantage of JupyterLab over Jupyter Notebooks, as I couldn’t get the REPL and editor (or REPL and Notebook) to display at the same time. It was worse than that, because I found that switching between editor and console took typically as long as 1 minute, with my browser asking me several times each time if I wanted to terminate the process that was slowing down everything. There is not even a button for ‘save’. I couldn’t see what JupyterLab is trying to achieve, but maybe it is just too early in the development. That said, I can’t say that it is looking promising.
I think I can see why there is little or no interest.
I am sorry to be so negative, and please don’t get me wrong - I think a browser-based notebook-compatible IDE for Julia would be wonderful. I just don’t think that JupyterLab is headed in a direction that gives me hope.
My opinion (FWIW!).