Similar to Mac-on-Linux

Qt Extended

Raspberry Pi

Readahead

Remastersys

RTAI

SCO–Linux disputes

Security-Enhanced Linux

SONiC (operating system)

Strace

Swappiness

System.map

Termux

The Code (2001 film)

Tomoyo Linux

Tuxedo Computers

Ubuntu Touch

Udev

Uswsusp

VDSO

Vmlinux

Vrms

Tanenbaum–Torvalds debate

Bdale Garbee

Borland Kylix