Hammerspoon config to move window to a space

init.lua

local function moveWindowToSpace(spaceNumber)
  local win = hs.window.focusedWindow()
  if not win then
    hs.alert.show("No focused window")
    return
  end

  local frame = win:frame()
  local titleBarPoint = {
    x = frame.x + frame.w / 2,
    y = frame.y + 3
  }
  local originalPos = hs.mouse.absolutePosition()

  hs.mouse.absolutePosition(titleBarPoint)

  local steps = {
    { delay = 0.05, fn = function()
      hs.eventtap.event.newMouseEvent(
        hs.eventtap.event.types.leftMouseDown, titleBarPoint):post()
    end },
    { delay = 0.15, fn = function()
      hs.eventtap.event.newKeyEvent({"ctrl"}, tostring(spaceNumber), true):post()
      hs.eventtap.event.newKeyEvent({"ctrl"}, tostring(spaceNumber), false):post()
    end },
    { delay = 0.4, fn = function()
      hs.eventtap.event.newMouseEvent(
        hs.eventtap.event.types.leftMouseUp, hs.mouse.absolutePosition()):post()
    end },
    { delay = 0.01, fn = function()
      hs.mouse.absolutePosition(originalPos)
    end },
  }

  local function runStep(i)
    if i > #steps then return end
    hs.timer.doAfter(steps[i].delay, function()
      steps[i].fn()
      runStep(i + 1)
    end)
  end
  runStep(1)
end

for i = 0, 9 do
  hs.hotkey.bind({"cmd", "alt", "ctrl", "shift"}, tostring(i), function()
    local target = i == 0 and 10 or i
    moveWindowToSpace(target)
  end)
end

This works by clicking on the titlebar of the focused window and then changing spaces with a keyboard shortcut. That means:

• It requires keyboard shortcuts bound to change spaces
• Only works for spaces that are on the same display as the window you are trying to move
• May not work for windows with atypical title bars

I've tested it on Ghostty, Chrome, and Cursor, so I'm happy with it.

works great. Thanks!