OnePlus X (onyx) for /e/OS-R-1.16
e-1.16-r-20231102-UNOFFICIAL-onyx.zip
https://www.androidfilehost.com/?fid=16385555061192797062
Please see sources and install instructions including recovery here:
https://xdaforums.com/t/rom-unofficial-lineageos-18-1-for-onyx.4456643/
Use it at your own risk!
Please support the developer(s)!