Peertube seems like a very nice idea. I think I will create my own instance. But is it possible to configure a locked down instance, so that not anyone can upl

Peertube seems like a very nice idea. I think I will create my own instance. But is it possible to configure a locked down instance, so that not anyone can upload videos? Because I would like to publish videos myself but prohibit others from uploading videos on my instance. Thanks