automate window movement with hammerspoon

init.lua

-- automatically reload configuration on change
hs.loadSpoon("ReloadConfiguration")
spoon.ReloadConfiguration:start()

-- cmd + alt + v types the clipboard contents as keystrokes
hs.hotkey.bind({ "cmd", "alt" }, "V", function()
	hs.eventtap.keyStrokes(hs.pasteboard.getContents())
end)

-- move windows like Rectangle app using https://www.hammerspoon.org/Spoons/WindowHalfsAndThirds.html
hs.loadSpoon("WindowHalfsAndThirds")
spoon.WindowHalfsAndThirds:bindHotkeys({
	top_half = { { "ctrl", "cmd" }, "Up" },
	bottom_half = { { "ctrl", "cmd" }, "Down" },
	left_half = { { "ctrl", "cmd" }, "Left" },
	right_half = { { "ctrl", "cmd" }, "Right" },
	--
	top_left = { { "ctrl", "cmd" }, "1" },
	top_right = { { "ctrl", "cmd" }, "2" },
	bottom_left = { { "ctrl", "cmd" }, "3" },
	bottom_right = { { "ctrl", "cmd" }, "4" },
	--
	max = { { "ctrl", "alt", "cmd" }, "Up" },
	-- third_left = { { "ctrl", "alt" }, "Left" },
	-- third_right = { { "ctrl", "alt" }, "Right" },
	-- third_up = { { "ctrl", "alt" }, "Up" },
	-- third_down = { { "ctrl", "alt" }, "Down" },
	-- max_toggle = { { "ctrl", "alt", "cmd" }, "f" },
	-- undo = { { "alt", "cmd" }, "z" },
	-- center = { { "alt", "cmd" }, "c" },
	-- larger = { { "alt", "cmd", "shift" }, "Right" },
	-- smaller = { { "alt", "cmd", "shift" }, "Left" },
})

-- move windows between screens
hs.loadSpoon("WindowScreenLeftAndRight")
spoon.WindowScreenLeftAndRight:bindHotkeys({
	screen_left = { { "ctrl", "alt", "cmd" }, "Left" },
	screen_right = { { "ctrl", "alt", "cmd" }, "Right" },
})

-- helper function to open or focus an app
local function openApp(appName)
	hs.application.launchOrFocus(appName)
end

-- Shift + F1 → Finder
hs.hotkey.bind({ "shift" }, "F1", function()
	openApp("Finder")
end)

-- Shift + F2 → Google Chrome
hs.hotkey.bind({ "shift" }, "F2", function()
	openApp("Google Chrome")
end)

-- Shift + F3 → Ghostty
hs.hotkey.bind({ "shift" }, "F3", function()
	openApp("Ghostty")
end)

-- Shift + F4 → WhatsApp
hs.hotkey.bind({ "shift" }, "F4", function()
	openApp("WhatsApp")
end)

-- Shift + F5 → Spotify
hs.hotkey.bind({ "shift" }, "F5", function()
	openApp("Spotify")
end)

-- Shift + F6 → Reminders
hs.hotkey.bind({ "shift" }, "F6", function()
	openApp("Reminders")
end)