PALADIN is a modified live Linux distribution based on Ubuntu that simplifies various forensics tasks in a forensically sound manner via PALADIN Toolbox.
JingOS | Future Mobile OS based on Linux - JingLing
JingOS is a convergent Linux-Based Open-Source OS for future tablets&laptops.It is a product of JingLing Tech. JingPad A1 is the Worlds FIRST Consumer-level ARM-based Linux Tablet.
skiftOS is a hobby operating system built for learning and for fun targeting the x86 platform. It features a kernel named hjert, a graphical user interface with a compositing window manager, and familiar UNIX utilities.
The predator-os linux is for penetration testing,ethical hacking and also privacy, hardened, secure, anonymized Linux. It has around 1300 pre-installed tools which are split into 40 several categories .Based on Ubuntu 20.04 LTS Mini, kernel 5.10 LTS, and using a fully customized xfce4 lightweight desktop with a special menu of tools.