Servo is a highly influential project whose legacy lives on through its groundbreaking technology in Firefox and its continued development for niche applications.
Shift is a specialized "workspace browser" designed for professionals who use multiple online accounts and apps. It was launched in 2016 by the Canadian company Axiom Systems.
Monarchy Linux was a source-based Linux distribution active primarily in the early 2000s. It was essentially an automated version of Linux From Scratch (LFS).
Palm OS defined the PDA category and pioneered the concept of the smartphone. Its focus on speed and core productivity remains influential
MeeGo was a promising, unified OS that was killed by corporate strategy before it could flourish, but its technology and ideas lived on in other projects
postmarketOS (pmOS) is a free, open-source Linux-based operating system designed for mobile devices like smartphones and tablets.