The Title pretty much says it all! I'm trying to download and (re)-install WLJS Notebook.app under macOS.
At wljs.io I don't find any Download link, just a lot of information about features of the app. (You'd think the developer would make it easy to install what he's developed, but apparently not.)
And t the target (https://github.com/JerryI/wolfram-js-frontend) of the GitHub link in the top menu on that page, I find no Releases link.
I'm looking for a .dmg, of course.