libvirt-daemon-system-sysv 7.4.0-0ubuntu3 (amd64 binary) in ubuntu impish

 Libvirt is a C toolkit to interact with the virtualization capabilities
 of recent versions of Linux (and other OSes). The library aims at providing
 a long term stable C API for different virtualization mechanisms. It currently
 supports QEMU, KVM, XEN, OpenVZ, LXC, and VirtualBox.
 .
 This package contains dependencies and init scripts to make libvirt work with
 sysv based init systems. Using libvirt-daemon-systemd is preferred since the
 init scripts are incomplete.
 .
 This package is useless without the libvirt-daemon-system package installed.