/usr/lib/x86_64-linux-gnu/libalure.so is in libalure-dev 1.2-6+b1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libalure.so.1
/usr/lib/x86_64-linux-gnu/libalure.so.1