Yes, I would also like a patched libnickel.so.1.0.0 with only the TypeGenius font settings working on all sideloaded fonts. For firmware 2.5.2.
The mentioned Russian patched version seems to contain many differences with the original file. So far I was unable to find the TypeGenius modifications.
Edit: compared mark3 with a mark4 version, these are different.
Some more info in this thread (no files)
Russian
English (Google Translate)