diff --git a/home-manager/hammerspoon/window-tiling.lua b/home-manager/hammerspoon/window-tiling.lua
new file mode 100644
index 0000000..90fc2a7
--- /dev/null
+++ b/home-manager/hammerspoon/window-tiling.lua
@@ -0,0 +1,172 @@
+hs.window.animationDuration = 0
+hs.window.setShadows(false)
+local hyper = { "ctrl", "alt", "cmd" }
+
+-- move window to next screen
+hs.hotkey.bind(hyper, "N", function()
+	local win = hs.window.focusedWindow()
+	win:moveToScreen(win:screen():next())
+end)
+
+local wm = {
+	sizes = { 1 / 2, 2 / 3, 1 / 3 },
+	fullScreenSizes = { 1, 3 / 4, 1 / 2 },
+}
+
+function wm:_nextStep(dim, offs, cb)
+	if hs.window.focusedWindow() then
+		local axis = dim == "w" and "x" or "y"
+		local oppDim = dim == "w" and "h" or "w"
+		local oppAxis = dim == "w" and "y" or "x"
+		local win = hs.window.frontmostWindow()
+		local id = win:id()
+		local screen = win:screen()
+
+		local cell = hs.grid.get(win, screen)
+
+		local nextSize = self.sizes[1]
+		for i = 1, #self.sizes do
+			if
+				cell[dim] == self.GRID[dim] * self.sizes[i]
+				and (cell[axis] + (offs and cell[dim] or 0)) == (offs and self.GRID[dim] or 0)
+			then
+				nextSize = self.sizes[(i % #self.sizes) + 1]
+				break
+			end
+		end
+
+		cb(cell, nextSize)
+		if cell[oppAxis] ~= 0 and cell[oppAxis] + cell[oppDim] ~= self.GRID[oppDim] then
+			cell[oppDim] = self.GRID[oppDim]
+			cell[oppAxis] = 0
+		end
+
+		hs.grid.set(win, cell, screen)
+	end
+end
+
+function wm:_nextFullScreenStep()
+	if hs.window.focusedWindow() then
+		local win = hs.window.frontmostWindow()
+		local id = win:id()
+		local screen = win:screen()
+
+		local cell = hs.grid.get(win, screen)
+
+		local nextSize = self.fullScreenSizes[1]
+		for i = 1, #self.fullScreenSizes do
+			if
+				cell.w == self.GRID.w * self.fullScreenSizes[i]
+				and cell.h == self.GRID.h * self.fullScreenSizes[i]
+				and cell.x == (self.GRID.w - self.GRID.w * self.fullScreenSizes[i]) / 2
+				and cell.y == (self.GRID.h - self.GRID.h * self.fullScreenSizes[i]) / 2
+			then
+				nextSize = self.fullScreenSizes[(i % #self.fullScreenSizes) + 1]
+				break
+			end
+		end
+
+		cell.w = self.GRID.w * nextSize
+		cell.h = self.GRID.h * nextSize
+		cell.x = (self.GRID.w - self.GRID.w * nextSize) / 2
+		cell.y = (self.GRID.h - self.GRID.h * nextSize) / 2
+
+		hs.grid.set(win, cell, screen)
+	end
+end
+
+function wm:_fullDimension(dim)
+	if hs.window.focusedWindow() then
+		local win = hs.window.frontmostWindow()
+		local id = win:id()
+		local screen = win:screen()
+		local cell = hs.grid.get(win, screen)
+
+		if dim == "x" then
+			cell = "0,0 " .. self.GRID.w .. "x" .. self.GRID.h
+		else
+			cell[dim] = self.GRID[dim]
+			cell[dim == "w" and "x" or "y"] = 0
+		end
+
+		hs.grid.set(win, cell, screen)
+	end
+end
+
+function wm:init()
+	self._pressed = {
+		up = false,
+		down = false,
+		left = false,
+		right = false,
+	}
+	self.GRID = { w = 24, h = 24 }
+
+	hs.grid.setGrid(self.GRID.w .. "x" .. self.GRID.h)
+	hs.grid.MARGINX = 0
+	hs.grid.MARGINY = 0
+
+	hs.hotkey.bind(hyper, "down", function()
+		self._pressed.down = true
+		if self._pressed.up then
+			self:_fullDimension("h")
+		else
+			self:_nextStep("h", true, function(cell, nextSize)
+				cell.y = self.GRID.h - self.GRID.h * nextSize
+				cell.h = self.GRID.h * nextSize
+			end)
+		end
+	end, function()
+		self._pressed.down = false
+	end)
+
+	hs.hotkey.bind(hyper, "right", function()
+		self._pressed.right = true
+		if self._pressed.left then
+			self:_fullDimension("w")
+		else
+			self:_nextStep("w", true, function(cell, nextSize)
+				cell.x = self.GRID.w - self.GRID.w * nextSize
+				cell.w = self.GRID.w * nextSize
+			end)
+		end
+	end, function()
+		self._pressed.right = false
+	end)
+
+	hs.hotkey.bind(hyper, "left", function()
+		self._pressed.left = true
+		if self._pressed.right then
+			self:_fullDimension("w")
+		else
+			self:_nextStep("w", false, function(cell, nextSize)
+				cell.x = 0
+				cell.w = self.GRID.w * nextSize
+			end)
+		end
+	end, function()
+		self._pressed.left = false
+	end)
+
+	hs.hotkey.bind(hyper, "up", function()
+		self._pressed.up = true
+		if self._pressed.down then
+			self:_fullDimension("h")
+		else
+			self:_nextStep("h", false, function(cell, nextSize)
+				cell.y = 0
+				cell.h = self.GRID.h * nextSize
+			end)
+		end
+	end, function()
+		self._pressed.up = false
+	end)
+
+	hs.hotkey.bind(hyper, "m", function()
+		self:_nextFullScreenStep()
+	end)
+end
+
+wm:init()
+
+hs.notify.show("Welcome to Hammerspoon", "Have fun!", "")
diff --git a/home-manager/lcech-mac-veracode.nix b/home-manager/lcech-mac-veracode.nix
index 73b8ebb..e6f1fad 100644
--- a/home-manager/lcech-mac-veracode.nix
+++ b/home-manager/lcech-mac-veracode.nix
@@ -46,11 +46,39 @@ in
         font-size = 14
         window-width = 9999
         window-height = 9999
+
+        # unbind resize split
+        keybind = super+ctrl+down=unbind
+        keybind = super+ctrl+left=unbind
+        keybind = super+ctrl+up=unbind
+        keybind = super+ctrl+right=unbind
+
+        # unbind clear_window
+        keybind = super+k=unbind
+
+        # unbind goto split
+        keybind = super+alt+right=unbind
+        keybind = super+alt+down=unbind
+        keybind = super+alt+left=unbind
+        keybind = super+alt+up=unbind
+
+        keybind = super+k=new_split:down
+        keybind = super+l=new_split:right
+
+        keybind = super+alt+j=goto_split:top
+        keybind = super+alt+k=goto_split:bottom
+        keybind = super+alt+h=goto_split:left
+        keybind = super+alt+l=goto_split:right
+
+        keybind = super+shift+j=resize_split:up,10
+        keybind = super+shift+k=resize_split:down,10
+        keybind = super+shift+h=resize_split:left,10
+        keybind = super+shift+l=resize_split:right,10
       '';
     };
     "${homedir}/.hammerspoon/init.lua" = {
       text = ''
-
+        ${builtins.readFile ./hammerspoon/window-tiling.lua}
       '';
     };
   };
@@ -165,6 +193,10 @@ in
       vc = "${homedir}/projects/veracode";
     };
 
+    shellAliases = {
+      hammerspoon-config = "open -a ${pkgs.hammerspoon}/Applications/Hammerspoon.app/Contents/MacOS/Hammerspoon";
+    };
+
     initExtra = ''
       ${builtins.concatStringsSep "\n" (
         builtins.map (dir: ''
@@ -178,6 +210,8 @@ in
 
       source <(${pkgs.kubectl}/bin/kubectl completion zsh)
       complete -C '${pkgs.awscli2}/bin/aws_completer' aws
+
+      bindkey '^[[3~' delete-char
     '';
   };