yabai:tldr:4ab04
The command you provided, "yabai -m config layout ${bsp}", is using the yabai window manager program to configure its layout using the "${bsp}" parameter.
yabai is a window management tool for macOS. It allows you to manage and organize your windows using key bindings, mouse gestures, or the command line. The "-m" flag in the command specifies that the following command is for modifying yabai's configuration.
The "config" keyword tells yabai that we want to configure a specific aspect of its behavior. In this case, we are configuring the layout.
The "${bsp}" part of the command uses parameter expansion to substitute the value of the "bsp" variable into the command. Without further context, it's not clear what the specific value of "${bsp}" would be in this case. However, it is likely referring to a specific layout mode called "Binary Space Partitioning" (BSP) in window management. BSP divides the available screen space into smaller rectangles to arrange windows.
So, the command is telling yabai to configure its layout using the BSP mode, which would likely affect how windows are arranged on the screen.