Hammerspoon Window Columns

init.lua

function moveWindowColumn(column, width)
  local window = hs.window.focusedWindow()
  local windowFrame = window:frame()
  local screen = window:screen()
  local screenFrame = screen:frame()

  -- minimum 2 columns even on smaller displays
  local numColumns = math.max(2, math.floor(screenFrame.w / 1100))
  local remainder = screenFrame.w % numColumns
  local columnWidth = math.floor(screenFrame.w / numColumns)

  windowFrame.x = column * columnWidth
  windowFrame.y = screenFrame.y
  windowFrame.h = screenFrame.h

  if (column + width) == numColumns then
    -- add remainder of width to windows using last column
    windowFrame.w = width * columnWidth + remainder
  else
    windowFrame.w = width * columnWidth
  end

  window:setFrame(windowFrame)
end

hs.hotkey.bind({"cmd", "ctrl"}, "1", function () moveWindowColumn(0, 1) end)
hs.hotkey.bind({"cmd", "ctrl"}, "2", function () moveWindowColumn(1, 1) end)
hs.hotkey.bind({"cmd", "ctrl"}, "3", function () moveWindowColumn(2, 1) end)

hs.hotkey.bind({"cmd", "ctrl"}, "4", function () moveWindowColumn(0, 2) end)
hs.hotkey.bind({"cmd", "ctrl"}, "5", function () moveWindowColumn(1, 2) end)