There were many people recently who had a well known problem with new ROCK installs (because it needs an update right away before the remotes work) and looking at their posts the versions in their new installs were Operating System version 1.0 (build 254) and Roon Server Version 2.0 (Build 1143)
E.g. here, which includes a log file showing these versions:
The available download image contains support for NUCs with UEFI boot