Welcome to skippy-xd!
Skippy-xd is a lightweight, window-manager-agnostic window selector on X server. With skippy, you get live-preview on your alt-tab motions; you get the much coveted expose feature from Mac; you get a handy overview of all your virtual desktops in one glance with paging mode.
Switch is similar to Alt-Tab:
Expose is inspired from Mac:
Paging shows you your entire desktop:
If you want to fly around your daily window flow, if you want cool window motions that adds to your productivity, if you want to manage your windows like a boss, skippy-xd might be the thing for you.
Checkout the youtube videos https://youtu.be/R__zua04xe0, https://youtu.be/reUDapFGnmQ.
Installation and usage is simple:
git clone https://github.com/felixfung/skippy-xd.git
cd skippy-xd
make
make install
skippy-xd --start-daemon
skippy-xd --switch --next
skippy-xd --expose
skippy-xd --paging
skippy-xd works on anything X. See https://github.com/felixfung/skippy-xd/wiki/Adoption#compatible-desktop-environmentswindow-managers for details.
Also check the wiki for detailed how to use, config options, and other info.