Installing flyctl
Flyctl is a command-line utility that lets you work with Fly, from creating your account to deploying your applications. It runs on your local device so you'll want to install the version that's appropriate for your operating system:
macOS
If you have the Homebrew package manager installed, flyctl can be installed by running:
brew install superfly/tap/flyctl
If not, you can run the install script:
curl -L https://fly.io/install.sh | sh
Linux
Run the install script:
curl -L https://fly.io/install.sh | sh
Windows
Run the Powershell install script:
iwr https://fly.io/install.ps1 -useb | iex
Your next step should be to Login to Fly.