hi it is exactly the same approach in the server
but instead of the name of the file you use the GUID of the file ,\
your process should be like this
first create a folder connection in the server to the folder that holds the apps binary files
usually its : 'C:\ProgramData\Qlik\Sense\Apps\'
second open the hub and open the model that you want to load the data from.
from the url find the GUID of the model
third inside your UI app
insert a binary load line it should look something like
Binary [lib://AppsSource (._administrator) (sense_administrator)/badb4b2e-f317-417c-991b-b78fb083b35d];