Install librarian0 by entering the following commands in the terminal:
sudo apt update sudo apt install librarian0
Description:
Documentation meta-data library (library package)
Rarian (formerly Spoon) is a documentation meta-data library, designed as a replacement for Scrollkeeper. . This package ships the shared library.
Homepage: http://rarian.freedesktop.org/
Version: 0.8.1-6build1
Section: universe/libs