Marcel Kilgus has put together a custom German keyboard version of the Minerva ROM. In the past he has used a patched German version, but since fitting a QL-SD into his QL he’s had to revert to using a “vanilla” version of Minerva where the German keyboard support had to be loaded every time. So in true Marcel style, out comes the source codes, a bit of reassembling and enter the new ROM. Printer translation tables pushed the ROM beyond the possible 48K, so those were dropped, but otherwise a perfectly usable German keyboard Minerva plus a version with QL-SD driver. An alternative to the traditional MGG ROMs for German QL users.
Further information and downloads here: https://www.kilgus.net/2017/03/05/german-minerva-rom/