[gears-eng] Can you run Gears without a browser?

[Cristian]

I wonder if it is possible to run Gears outside of the browser, say
from a command-line JavaScript interpreter (fro debugging/
experimenting purposes).
Since the third_party\spidermonkey directory contains a source code
for JS interpreter and some files for threading and memory management,
an idea could be to use those files to integrate Gears into the JS
interpreter rather than Firefox. Does it sound feasible?.
Thanks!
Cristian