OpenBSD is universally known as an operating system designed
with security in mind, proudly being able to say that it has had “Only two
remote holes in the default install, in a heck of a long time!” However,
OpenBSD ships with several pieces of non-free, binary only firmware in the
base system, and depending on the hardware detected, by default a script will
download more at first boot, without informing the user of this. With a
default installation, you might end up using some of this non-free firmware
without even knowing it– and, if you try to install additional software,
you might end up unwittingly installing non-free programs.
LibertyBSD is a “deblobbed” version of OpenBSD. You can
get all of the benefits of OpenBSD, while being sure that there is nothing
non-free lurking in the depths of your system.