To use Snaps, you must install MetaMask Flask.
You can then get started quickly using the Create Snap CLI.
Install MetaMask Flask
MetaMask Flask is a canary distribution for developers that provides access to upcoming MetaMask features. Snaps is the first feature rolled out in the Flask environment.
Install Flask in a new browser profile, or disable any existing installed versions of MetaMask before installing Flask.
Running multiple instances of MetaMask in the same browser profile breaks dapp interactions.