Add support for installation directory

[avioli]

Brew supports specifying the casks appdir via an ENV variable, which unfortunately the app cannot read, since it is defined in my shell rc-file.

set-env HOMEBREW_CASK_OPTS --appdir=$E:HOME/Applications

or if defined in ZSH

export HOMEBREW_CASK_OPTS="--appdir=$HOME/Applications"

It would be amazing if we could have a way to define that appdir within the app's settings.

Maybe as part of the onboarding setup and later available within the app's settings.

If you are open to PRs - I could give it a go.

Edit: apparently brew install --cask --appdir=~/Applications ... does the same. Some apps require to be in /Applications and can ignore the --appdir flag.

[milanvarady]

Support for --appdir has been added in the v1.2 release. You can select a custom installation directory during the setup, or in the settings.