Annata 365 CE and Dataverse apps are installed using the Microsoft Dynamics CRM Package Deployer and Windows PowerShell. See https://docs.microsoft.com/en-us/power-platform/admin/deploy-packages-using-package-deployer-windows-powershell for more information.
The newest version of the package deployer tool can be downloaded from here: https://www.nuget.org/packages/Microsoft.CrmSdk.XrmTooling.PackageDeployment.Wpf/.
After downloading the package, unblock the file (see screenshot below)
Rename from .nupkg extension to .zip (see screenshot below)
Extract the zip file and install the Package deployer.