my Hammerspoon init.lua file

init.lua

-- =============================================================================
-- Hammerspoon Configuration (Translated from Slate)
-- =============================================================================

-- Disable window animation delay for instant moves/resizes
hs.window.animationDuration = 0

local hyper = {"ctrl", "alt"}
local hyperShift = {"ctrl", "alt", "shift"}
local resizeMods = {"ctrl", "cmd"}
local resizeModsShift = {"ctrl", "cmd", "shift"}

-- Helper function to set window frames using unit rectangles {x, y, w, h}
local function moveWindow(x, y, w, h)
  local win = hs.window.focusedWindow()
  if win then
    win:moveToUnit({x, y, w, h})
  end
end

-- Helper function to nudge window position by percentage
local function nudgeWindow(dx, dy)
  local win = hs.window.focusedWindow()
  if not win then return end
  local frame = win:frame()
  local screenFrame = win:screen():frame()
  
  frame.x = frame.x + (screenFrame.w * dx)
  frame.y = frame.y + (screenFrame.h * dy)
  win:setFrame(frame)
end

-- Helper function to resize window frame by percentage
local function resizeWindow(dw, dh)
  local win = hs.window.focusedWindow()
  if not win then return end
  local frame = win:frame()
  local screenFrame = win:screen():frame()
  
  frame.w = frame.w + (screenFrame.w * dw)
  frame.h = frame.h + (screenFrame.h * dh)
  win:setFrame(frame)
end

-- Helper function to throw window to specific screen index
local function throwToScreen(screenIndex)
  local win = hs.window.focusedWindow()
  if not win then return end
  local screens = hs.screen.allScreens()
  if screens[screenIndex] then
    win:moveToScreen(screens[screenIndex], true, true)
  end
end

-- =============================================================================
-- 1. Screen Throws (pad0, pad.)
-- =============================================================================
hs.hotkey.bind(hyper, "pad.", function() throwToScreen(1) end)
hs.hotkey.bind(hyper, "pad0", function() throwToScreen(2) end)
-- =============================================================================
-- 2. Numpad Layout Binds (Ctrl + Alt + Keypad)
-- =============================================================================
hs.hotkey.bind(hyper, "pad1", function() moveWindow(0.0, 0.5, 0.5, 0.5) end) -- bottomleft
hs.hotkey.bind(hyper, "pad2", function() moveWindow(0.0, 0.5, 1.0, 0.5) end) -- bottomhalf
hs.hotkey.bind(hyper, "pad3", function() moveWindow(0.5, 0.5, 0.5, 0.5) end) -- bottomright
hs.hotkey.bind(hyper, "pad4", function() moveWindow(0.0, 0.0, 0.5, 1.0) end) -- lefthalf
hs.hotkey.bind(hyper, "pad5", function() moveWindow(0.0, 0.0, 1.0, 1.0) end) -- full
hs.hotkey.bind(hyper, "pad6", function() moveWindow(0.5, 0.0, 0.5, 1.0) end) -- righthalf
hs.hotkey.bind(hyper, "pad7", function() moveWindow(0.0, 0.0, 0.5, 0.5) end) -- topleft
hs.hotkey.bind(hyper, "pad8", function() moveWindow(0.0, 0.0, 1.0, 0.5) end) -- tophalf
hs.hotkey.bind(hyper, "pad9", function() moveWindow(0.5, 0.0, 0.5, 0.5) end) -- topright

-- Quarters variant (Ctrl + Alt + Shift + Keypad)
hs.hotkey.bind(hyperShift, "pad1", function() moveWindow(0.0, 0.75, 0.5, 0.25) end) -- bottomleftquarter
hs.hotkey.bind(hyperShift, "pad2", function() moveWindow(0.0, 0.75, 1.0, 0.25) end) -- bottomquarter
hs.hotkey.bind(hyperShift, "pad3", function() moveWindow(0.5, 0.75, 0.5, 0.25) end) -- bottomrightquarter
hs.hotkey.bind(hyperShift, "pad7", function() moveWindow(0.0, 0.00, 0.5, 0.25) end) -- topleftquarter
hs.hotkey.bind(hyperShift, "pad8", function() moveWindow(0.0, 0.00, 1.0, 0.25) end) -- topquarter
hs.hotkey.bind(hyperShift, "pad9", function() moveWindow(0.5, 0.00, 0.5, 0.25) end) -- toprightquarter

-- =============================================================================
-- 3. Nudges (Ctrl + Alt + Arrows)
-- =============================================================================
hs.hotkey.bind(hyper, "left",  function() nudgeWindow(-0.10, 0.00) end)
hs.hotkey.bind(hyper, "right", function() nudgeWindow( 0.10, 0.00) end)
hs.hotkey.bind(hyper, "up",    function() nudgeWindow( 0.00,-0.10) end)
hs.hotkey.bind(hyper, "down",  function() nudgeWindow( 0.00, 0.10) end)

hs.hotkey.bind(hyperShift, "left",  function() nudgeWindow(-0.05, 0.00) end)
hs.hotkey.bind(hyperShift, "right", function() nudgeWindow( 0.05, 0.00) end)
hs.hotkey.bind(hyperShift, "up",    function() nudgeWindow( 0.00,-0.05) end)
hs.hotkey.bind(hyperShift, "down",  function() nudgeWindow( 0.00, 0.05) end)

-- =============================================================================
-- 4. Stretches / Resizes (Ctrl + Cmd + Arrows)
-- =============================================================================
hs.hotkey.bind(resizeMods, "left",  function() resizeWindow(-0.10, 0.00) end)
hs.hotkey.bind(resizeMods, "right", function() resizeWindow( 0.10, 0.00) end)
hs.hotkey.bind(resizeMods, "up",    function() resizeWindow( 0.00,-0.10) end)
hs.hotkey.bind(resizeMods, "down",  function() resizeWindow( 0.00, 0.10) end)

hs.hotkey.bind(resizeModsShift, "left",  function() resizeWindow(-0.05, 0.00) end)
hs.hotkey.bind(resizeModsShift, "right", function() resizeWindow( 0.05, 0.00) end)
hs.hotkey.bind(resizeModsShift, "up",    function() resizeWindow( 0.00,-0.05) end)
hs.hotkey.bind(resizeModsShift, "down",  function() resizeWindow( 0.00, 0.05) end)

-- =============================================================================
-- 5. Focus Bindings (Cmd + Arrows & Cmd + Alt + Up/Down)
-- =============================================================================
hs.hotkey.bind({"cmd"}, "right", function() hs.window.focusedWindow():focusWindowEast() end)
hs.hotkey.bind({"cmd"}, "left",  function() hs.window.focusedWindow():focusWindowWest() end)
hs.hotkey.bind({"cmd"}, "up",    function() hs.window.focusedWindow():focusWindowNorth() end)
hs.hotkey.bind({"cmd"}, "down",  function() hs.window.focusedWindow():focusWindowSouth() end)

-- Focus behind (send focus to window directly underneath current window)
hs.hotkey.bind({"cmd", "alt"}, "up", function()
  local win = hs.window.focusedWindow()
  if win then win:sendToBack() end
end)
hs.hotkey.bind({"cmd", "alt"}, "down", function()
  local win = hs.window.focusedWindow()
  if win then win:sendToBack() end
end)

-- =============================================================================
-- 6. Commented Out Binds (Window Hints & Grid - Optional)
-- Un-comment lines below if you want window hinting (cmd+e) or grid (cmd+g)
-- =============================================================================
-- hs.hotkey.bind({"cmd"}, "e", function() hs.hints.windowHints() end)
-- hs.hotkey.bind({"cmd"}, "g", function() hs.grid.show() end)