How to run (open) not official v8.0.0-beta2

Hello everyone

In my project, I work with selenium 4.1.1

For this, I need to use Appim v8.0.0-beta2. But I can’t find any file for the installation of it.
Could u help me please and share any terminal commands on how to run it if we don’t have UI yet


npm install -g appium@beta