Frontend can be installed either from local zip file, or automatically downloaded from the web.
You can give all the options directly on the command like, but missing information will be filled out by looking at the data configured under `frontends.available` in the config files.
This will download the latest build for the the pre-configured `ref` and install it. It can then be configured as the one of the served frontends in the config file (see `primary` or `admin`).
You can override any of the details. To install a pleroma build from a different url, you could do this:
If you don't have a zip file but just want to install a frontend from a local path, you can simply copy the files over a folder of this template: `${instance_static}/frontends/${name}/${ref}`