Features

Supports multiple displays
Supports custom shortcuts

Usage

Add the following to your ~/.hammerspoon/init.lua:

lua
PaperWM = hs.loadSpoon("PaperWM")
PaperWM:bindHotkeys({
-- switch to a new focused window in tiled grid
focus_left  = {{"ctrl", "alt", "cmd"}, "left"},
focus_right = {{"ctrl", "alt", "cmd"}, "right"},
focus_up    = {{"ctrl", "alt", "cmd"}, "up"},
focus_down  = {{"ctrl", "alt", "cmd"}, "down"},

-- move windows around in tiled grid
swap_left  = {{"ctrl", "alt", "cmd", "shift"}, "left"},
swap_right = {{"ctrl", "alt", "cmd", "shift"}, "right"},
swap_up    = {{"ctrl", "alt", "cmd", "shift"}, "up"},
swap_down  = {{"ctrl", "alt", "cmd", "shift"}, "down"},

-- position and resize focused window
center_window = {{"ctrl", "alt", "cmd"}, "c"},
full_width    = {{"ctrl", "alt", "cmd"}, "f"},
cycle_width   = {{"ctrl", "alt", "cmd"}, "r"},
cycle_height  = {{"ctrl", "alt", "cmd", "shift"}, "r"},

-- move focused window into / out of a column
slurp_in = {{"ctrl", "alt", "cmd"}, "i"},
barf_out = {{"ctrl", "alt", "cmd"}, "o"},

-- switch to a new Mission Control space
switch_space_1 = {{"ctrl", "alt", "cmd"}, "1"},
switch_space_2 = {{"ctrl", "alt", "cmd"}, "2"},
switch_space_3 = {{"ctrl", "alt", "cmd"}, "3"},
switch_space_4 = {{"ctrl", "alt", "cmd"}, "4"},
switch_space_5 = {{"ctrl", "alt", "cmd"}, "5"},
switch_space_6 = {{"ctrl", "alt", "cmd"}, "6"},
switch_space_7 = {{"ctrl", "alt", "cmd"}, "7"},
switch_space_8 = {{"ctrl", "alt", "cmd"}, "8"},
switch_space_9 = {{"ctrl", "alt", "cmd"}, "9"},

-- move focused window to a new space and tile
move_window_1 = {{"ctrl", "alt", "cmd", "shift"}, "1"},
move_window_2 = {{"ctrl", "alt", "cmd", "shift"}, "2"},
move_window_3 = {{"ctrl", "alt", "cmd", "shift"}, "3"},
move_window_4 = {{"ctrl", "alt", "cmd", "shift"}, "4"},
move_window_5 = {{"ctrl", "alt", "cmd", "shift"}, "5"},
move_window_6 = {{"ctrl", "alt", "cmd", "shift"}, "6"},
move_window_7 = {{"ctrl", "alt", "cmd", "shift"}, "7"},
move_window_8 = {{"ctrl", "alt", "cmd", "shift"}, "8"},
move_window_9 = {{"ctrl", "alt", "cmd", "shift"}, "9"}
})
PaperWM:start()

Limitation

MacOS does not allow a window to be moved fully off-screen. Windows that would be tiled off-screen are placed in a margin on the left and right edge of the screen. They are still visible and clickable.

It's difficult to detect when a window is dragged from one space or screen to another. Use the move_window_N commands to move windows between spaces and screens.

Arrange screens vertically to prevent windows from bleeding into other screens.