/usr/lib/x86_64-linux-gnu/libgrits.so is in libgrits-dev 0.8.1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgrits.so.5.1.1
/usr/lib/x86_64-linux-gnu/libgrits.so.5.1.1