Bluetooth configuration files

So, here is my setup, I have a pi5 16gb running libreelec plugged into Ethernet and hooked up to a 1080p projector. I use a bluetooth sound bar for my primary sound output while watching. I also have an sd card setup for Lakka for the same device so i can switch between OS's depending on what I want to do at the time... what i need is to know where the bluetooth connection config files are located on libreelec so I can copy those files and all of their randomly generated keys that reset with every connection into the same place on Lakka and have the soundbar autoconnect when I power on both OS's given that all of the hardware and its associated mac addresses are all the same (I have tried this trick before using rpios and kali and ubuntu for the rpi to get the same bluetooth keyboard to autoconnect to 3 different os's without having to pair each time) any help would be much appreciated, thanks!