qUE_ARM made support for it, you can find it in this topic:
PostRE: [9.0.0] LibreELEC builds for MX2/G18
LibreELEC-AML 9.2.8.8 (built 2nd March 2023) update for the Matricom G-Box MX/MX2 (AML8276-MX HD18 board)
See post #341 for instructions on how to clean install, otherwise update as normal through copying to .update
forum.libreelec.tv/thread/?postID=176015#post176015 Main fix I've added in this build is for the freezing on h264 (high) streams being interrupted by seeking or stop (which effects the Kodi BBC iPlayer add-on).
Credit goes to dtech for maintaining and supporting this fork of…qUE_ARMMarch 2, 2023 at 5:57 PM
Yesterday all evening I tried to build an image according to this instruction, I built it on Ubuntu 18.04, I got stuck on a libtool error, I can’t figure out what is missing