currently to get the zip you must know the file GUID for the current release, you need to enter email etc to obtain this link. so when published it cant be found out quickly.
for linux installer scripts for wine and such can automate the install of vara, and include VarAC.. however the scripts need manually updated each time for the .exe link.
request to change the current releases page, to not redirect the current newest version back to the email/download page but rather directly link to the file ..allowing automated downloading of the "newest version" via wget and bash scripts.
This would keep the email on the front and attractive download link
but allow back-door script access to automate via the releases page.