I'm with you! This is one of the last few articles related to 'vr on linux' that I read before the Holidays: http://www.roadtovr.com/steamvr-to-get-linux-and-mac-osx-sup...

AFAIK both Unity and Unreal Engines have 'experimental' linux builds available. I started the year hardware-strapped, but hopefully sometime in 2017 I'll start dabbling with these linux alternatives.

Good luck!