Yaml files from https sorce

QUESTION
Currently it is possible to separate yaml files. /Config/camera.yaml for example
Can we separate to web resource? For example https://mysite/camera.yaml or https://mysite/camera

PURPOSE
(7) locations running HA on RPi will be connected to single HA instance via mqtt.
Main instance will handle automation actions and notifications.
It is difficult to manage config on separate servers and mount ftp folder not currently desired.

Currently I am only curious about this and looking for some idea for better managing what is becoming complex.