I felt the UNIX environment after a long time, because all Linux updater should be installed for the root security before any anti-virus software.

And after it, I’m enjoying this fresh computing.

Some below as reference:

OpenSUSE Linux:
https://software.opensuse.org/

Debian Linux:
https://www.debian.org/

Kubuntu Linux:
https://kubuntu.org/getkubuntu/

Fedora Linux:
https://getfedora.org/

(C) Copyright 2021 Kyo Nissho.