-- | Sets the default installation directory.
--   Note that the part of this string following the last @\\@ will be used if the user selects 'browse', and
--   may be appended back on to the string at install time (to disable this, end the directory with a @\\@).
--   If this doesn't make any sense, play around with the browse button a bit.
--
-- > installDir "$PROGRAMFILES/MyApp"
installDir :: Exp FilePath -> Action ()
installDir = emit1 InstallDir
installDir :: Exp FilePath -> Action ()
installDir = emit1 InstallDir
installDir = emit1 InstallDir