Getting further with networking

Hello everyone!
I’m actually tring to make some advanced tweaks with the network, such as adding a VLAN to the interface, or tune the IPv4 routing with several interface aliases.

It is surely not a feature request for this, but is it possible to get where the network settings are actually stored? Or better, is it possible to overrride OSMC’s settings with a Debian-style interfaces file? How?

Thank you for your help! Enclosed, a verison of my target configuration:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

auto vlan0
iface vlan0 inet static
    vlan-raw-device eth0

connman is the network manager for OSMC. Checking the documentation of connmanctl may give you some better info.