Any way to use the BUNDLE_DEPLOYMENT: "true" config, but still use system-wide gems?

[mohamedhafez]

in my .bundle/config, I'd like to use BUNDLE_DEPLOYMENT: "true", but have it still use the system-wide gems and install to there. I've played around with various values for BUNDLE_PATH but no luck so far.

(I use rbenv and several versions of ruby and jruby, so I don't really mean system-wide i mean just the ones that rbenv would usually use when you do gem install)

[mohamedhafez]

It looks like setting BUNDLE_PATH__SYSTEM: "true" in .bundle/config does just that!