DiscourseHub not on Linux?

People,

I love this app on Android but it doesn’t appear to be available for Linux desktops? - why not? - could it be done as a Chrome Extension?

ATM, on the desktop, I have a window with all my (27) Discourse sites in it but it would be much nicer to have all the sites managed with DiscourseHub like I can do on Android . .

Thanks,
Phil.