I've not tested it, but I believe that another option is to set a machine level ChocolateyInstall variable pointing to one location and a user level ChocolateyInstall variable pointing to another location. Then if we install Chocolatey as admin, we would get a "master" Chocolatey install, that can be used to install the majority of the packages (which require admin access according to the documentation). If we install it again as the common user, we would get a "user" Chocolatey install, that can be used to install some specific packages (as Wunderlist). That way, that package can get installed to any number of users, without interfering with the "admin" Chocolatey install.