Operating system
Debian GNU/Linux
Debian is one of the oldest operating systems based on the Linux kernel, and is the basis of many other Linux distributions.
LineageOS
LineageOS is an open source Android operating system for smartphones, tablets, and set-top boxes.
Sailfish
Sailfish OS is a Linux-based European alternative to dominating mobile operating systems.
Ubuntu Touch
Ubuntu Touch is a mobile version of the Ubuntu operating system, developed by the UBports community.
openSUSE
openSUSE makes open source Linux operating systems for desktops, servers and containers.
Tails
Tails is a portable operating system that protects against surveillance and censorship.