Open Source Go Window Managers for Mac

SWM is a simple stacking window manager for X. SWM is meant to be controlled using X events and swmctl, its custom command-sending tool. X events could be sent using utilities like xdotool or wmctrl. Their commands, as well as swmctl ones could be mapped to keyboard shortcuts using a utility like sxhkd. You can find an example sxhkd config in the examples.

wmwm is a pure Go auto tiling window manager for X11. It is very simple (2k loc) and lightweight. With wmwm you start with one window which takes full size of the screen. Next window will split screen into equal columns with the second window placed in the right column. Additional windows will be placed in the right column. Windows in a column always have the same height. You can move windows within the column or from one column to another. Windows and columns belong to workspaces. In wmwm you have eight workspaces (nine if external monitor is connected). You can easily move windows from one workspace to another.