Environment Variables & EXR support?

Hey guys, been using Mocha for a while and its a great tool, but there are two things I was curious about_:

Do environmental variables exist for Mocha? I’ve looked through the documentation and can’t seem to find any.

Is there any plan for EXR support? (Our entire pipeline is exr based, but none of the files seem to be readable in Mocha)

Cheers,
John