stagehand command not found when trying to create new application

I've looked at my machine, and stagehand is in ~/.pub-cache/bin which I think I had to add to my .profile manually:

export PATH=$PATH:~/.pub-cache/bin

(edit: I've just found the confirming information tucked away in the pub pages: https://www.dartlang.org/tools/pub/cmd/pub-global#running-a-script-from-your-path)

I'm on mac too. I did this:

brew tap dart-lang/dart
brew install dart
stagehand
  zsh: command not found: stagehand

And then this command fixed it:

pub global activate stagehand

Now it works:

stagehand
  Welcome to Stagehand!