Dart install/setup on Mac/OSX

What's the usual folder where the Dart Editor and SDK (after unzipped the download) are installed/moved to? (/Applications)?

How do I set the path for flutter on Mac?

Add Flutter to your PATH The easiest way to do this is by using the terminal to navigate into the flutter/bin folder and use the pwd command to print the current working directory. Copy the result of the pwd command. This is the path to your Flutters bin folder, which we will need in a second.

Please follow the https://dart.dev/get-dart

$ brew tap dart-lang/dart
$ brew install dart

and then:

$ brew info dart

And you will see: /usr/local/opt/dart/libexec

Please note the path to the Dart SDK:
/usr/local/opt/dart/libexec

--with-dartium:
To use with IntelliJ, set the Dartium execute home to:
/usr/local/opt/dart/Chromium.app

Other information: https://www.dartlang.org/downloads/mac.html