libosmovty4 0.12.1-3ubuntu1 (arm64 binary) in ubuntu hirsute

 This is part of the libosmocore "meta"-library. The libosmocore library
 contains various utility functions that were originally developed as part of
 the OpenBSC project, but which are of a more generic nature and thus useful to
 (at least) other programs that are developed in the sphere of Free Software /
 Open Source mobile communication.
 .
 The libosmovty library in particular implements the interactive command-line
 on the VTY (Virtual TTY) as well as configuration file parsing.