I've experimented with this and with a little tweaking it works fine under NW.js's alpha support for running Chrome Apps.

I mention it because downloading one file (a nw.js / electron build) is a lot less friction filled than (in some cases) downloading an entire browser just to use one app. There's still people out there who still use Firefox or whatever default browser their OS comes with. Instead of downloading one file, you're now forced to download two.