I just tried this on an Ubuntu Linux netbook and it would only take me to the files whenever I clicked on the .exe file so I'm not sure it does work on Linux unfortunately.
EDIT: You can get Webtorrent Desktop for Linux from webtorrent.io, I think you just have to add some of the URL from the mod version. Double check with @marketingmonk or check the comments as I think I saw something about using normal Webtorrent and adding a line to it.