Emacs X Window Manager by Chris Feng.
From the webpage:
EXWM (Emacs X Window Manager) is a full-featured tiling X window manager for Emacs built on top of XELB. It features:
- Fully keyboard-driven operations
- Hybrid layout modes (tiling & stacking)
- Dynamic workspace support
- ICCCM/EWMH compliance
- (Optional) RandR (multi-monitor) support
- (Optional) Built-in compositing manager
- (Optional) Built-in system tray
Please check out the screenshots to get an overview of what EXWM is capable of, and the user guide for a detailed explanation of its usage.
Note: If you install EXWM from source, it’s recommended to install XELB also from source (otherwise install both from GNU ELPA).
OK, one screenshot:
BTW, EXWM supports multiple monitors as well.
Enjoy!