Expected Behavior
I want to deploy from Windows to a UNIX system using the same files I would use if I ran hapistrano from Linux.

Actual Behavior
I'm getting this error when deploying from Windows.

> hap deploy -c deploy/staging.yaml…Aeson exception:…Error in $['deploy_path']: InvalidAbsDir "/var/www/staging"…

Other details
Hapistrano uses the path library. path has support for windows. However, path makes a distinction to expose certain behavior according to the system it is being compiled on:

{-# LANGUAGE CPP #-}
#if defined(mingw32_HOST_OS)
module Path(module Path.Windows) where
import Path.Windows
#else
module Path(module Path.Posix) where
import Path.Posix
#endif

That means that if hapistrano is compiled on Windows, it will validate that all paths on the server.yml files have valid deployment paths. If the target is Unix, the path will still appear as invalid since path's validation relies on the system it was compiled on.