[NetworkManager] Persistent conf with reboot

Hello,

HA runs on a raspberry Pi with this type of ISO.
https://github.com/home-assistant/operating-system/releases/download/5.12/hassos_rpi3-64-5.12.img.xz

I am trying to make a conf persistent in one of the files contained in the /etc/NetworkManager directory.

The objective is to create a Wifi access point in a brX bridge with an eth0.X gateway.

NetworkManager does not manage bridges. However, it is possible to change this configuration (tested with Raspbian), hence the purpose of this topic.

I can connect with SSH, but if I reboot after change a conf file in /etc/NetworkManager dir, I lost the conf.

Thank you for helping me find a solution.

Sincerely,

Jbsky