UiPath Tasks for Azure DevOps : deploy a project template to Orchestrator

For processes and libraries, I succes in building the package and deploying it into the Orchestrator from ADO.
But for projet templates, I failed to do it.
I have tried to publish the template as library but it failed because of the type of the template which isn’t “library”.
I have tried another thing : package as a process but, when ADO deploy it, it don’t publish it into librairies (it should by published here in order to be available as a projet template from Studio)… I think, with the UiPath Tasks for ADO, it’s not possible to deploy a project template into the Tenant feed in order to it will be available as a project template into UiPath Studio.
In the project.json :
Please help me !