After confirming your license details, the typical setup process takes around 2 minutes. You usually use the distributed client package provided by your server owner, so you won't need a separate installer.
As an administrator, you'll need to configure the M2Guard panel to suit your server's needs. This includes setting up policies, whitelists, and client hash lists.
Make sure to update your client hash lists whenever you update your packs to avoid warnings for legitimate players.