i3
Used by 7 peoplei3wm.org ↗
“I use i3, which is a popular tiling window manager that's very easy to customize.”
Tim Jacobs Interview, Inventor, hacker, engineer · via Uses This 
“Dell XPS 13: I use i3 as my window manager and have converted SO many people to do the same.”
Jessie Frazelle Interview, Software engineer (Google, Docker) · via Uses This 
“On top of that, I use the i3 tiling window manager, which I've customized with a couple patches and a number of homegrown utilities that I use to keep myself productive.”
Judd Vinet Interview, Software engineer (Arch Linux), CTO (Bet Smart Media) · via Uses This 
“On my laptop I've converted over to using the i3 window manager, on top of the GNOME 3 session handling logic.”
Greg Kroah-Hartman Interview, Linux kernel developer · via Uses This
