Configure macOS window tooling

dotfiles/hammerspoon/init.lua

@@ -0,0 +1,438 @@
+local hyper = { "cmd", "ctrl", "alt" }
+local hyperShift = { "cmd", "ctrl", "alt", "shift" }
+local wf = hs.window.filter.defaultCurrentSpace
+
+hs.window.animationDuration = 0
+pcall(function()
+  hs.ipc.cliInstall()
+end)
+
+local config = {
+  gap = 8,
+  autoColumns = false,
+}
+
+local retileTimer = nil
+local arranging = false
+local rightCommandDown = false
+local rightCommandUsed = false
+local rightCommandKeyCode = 54
+
+local function notify(message)
+  hs.alert.show(message, 0.7)
+end
+
+local function screenFrame(screen)
+  return screen:frame()
+end
+
+local function sameScreen(a, b)
+  return a and b and a:id() == b:id()
+end
+
+local function centerX(win)
+  local f = win:frame()
+  return f.x + (f.w / 2)
+end
+
+local function centerY(win)
+  local f = win:frame()
+  return f.y + (f.h / 2)
+end
+
+local function distance(a, b)
+  local dx = a.x - b.x
+  local dy = a.y - b.y
+  return math.sqrt((dx * dx) + (dy * dy))
+end
+
+local function directionScore(focused, candidate, direction)
+  local focusedCenter = {
+    x = centerX(focused),
+    y = centerY(focused),
+  }
+  local candidateCenter = {
+    x = centerX(candidate),
+    y = centerY(candidate),
+  }
+
+  if direction == "left" and candidateCenter.x >= focusedCenter.x then
+    return nil
+  elseif direction == "right" and candidateCenter.x <= focusedCenter.x then
+    return nil
+  elseif direction == "up" and candidateCenter.y >= focusedCenter.y then
+    return nil
+  elseif direction == "down" and candidateCenter.y <= focusedCenter.y then
+    return nil
+  end
+
+  return distance(focusedCenter, candidateCenter)
+end
+
+local function columnWindows(screen)
+  local windows = {}
+
+  for _, win in ipairs(wf:getWindows()) do
+    if win:isStandard()
+      and not win:isMinimized()
+      and sameScreen(win:screen(), screen)
+    then
+      table.insert(windows, win)
+    end
+  end
+
+  table.sort(windows, function(a, b)
+    local af = a:frame()
+    local bf = b:frame()
+
+    if math.abs(centerX(a) - centerX(b)) > 24 then
+      return centerX(a) < centerX(b)
+    end
+
+    return af.y < bf.y
+  end)
+
+  return windows
+end
+
+local function neighborWindow(direction)
+  local focused = hs.window.focusedWindow()
+  if not focused then
+    return nil
+  end
+
+  local focusedId = focused:id()
+  local best = nil
+  local bestScore = nil
+
+  for _, win in ipairs(wf:getWindows()) do
+    if win:isStandard()
+      and not win:isMinimized()
+      and sameScreen(win:screen(), focused:screen())
+      and win:id() ~= focusedId
+    then
+      local score = directionScore(focused, win, direction)
+      if score and (not bestScore or score < bestScore) then
+        best = win
+        bestScore = score
+      end
+    end
+  end
+
+  return best
+end
+
+local function setFrame(win, frame)
+  win:setFrame(frame, 0)
+end
+
+local function tileWindows(windows)
+  if #windows == 0 then
+    return
+  end
+
+  arranging = true
+
+  local screen = windows[1]:screen()
+  local frame = screenFrame(screen)
+  local gap = config.gap
+  local count = #windows
+  local width = (frame.w - (gap * (count - 1))) / count
+
+  for index, win in ipairs(windows) do
+    setFrame(win, {
+      x = frame.x + ((index - 1) * (width + gap)),
+      y = frame.y,
+      w = width,
+      h = frame.h,
+    })
+  end
+
+  arranging = false
+end
+
+local function tileFocusedScreen()
+  local focused = hs.window.focusedWindow()
+  if not focused then
+    notify("No focused window")
+    return
+  end
+
+  local windows = columnWindows(focused:screen())
+  tileWindows(windows)
+end
+
+local function focusWindow(direction)
+  local target = neighborWindow(direction)
+  if target then
+    target:focus()
+  end
+end
+
+local function swapWindow(direction)
+  local focused = hs.window.focusedWindow()
+  local target = neighborWindow(direction)
+  if not focused or not target then
+    return
+  end
+
+  arranging = true
+
+  local focusedFrame = focused:frame()
+  local targetFrame = target:frame()
+
+  setFrame(focused, targetFrame)
+  setFrame(target, focusedFrame)
+  focused:focus()
+
+  arranging = false
+end
+
+local function placeFocused(startColumn, spanColumns, totalColumns)
+  local focused = hs.window.focusedWindow()
+  if not focused then
+    return
+  end
+
+  local frame = screenFrame(focused:screen())
+  local gap = config.gap
+  local unit = (frame.w - (gap * (totalColumns - 1))) / totalColumns
+  local x = frame.x + ((startColumn - 1) * (unit + gap))
+  local width = (unit * spanColumns) + (gap * (spanColumns - 1))
+
+  setFrame(focused, {
+    x = x,
+    y = frame.y,
+    w = width,
+    h = frame.h,
+  })
+end
+
+local function moveFocusedToScreen(direction)
+  local focused = hs.window.focusedWindow()
+  if not focused then
+    return
+  end
+
+  local target = direction < 0 and focused:screen():previous() or focused:screen():next()
+  focused:moveToScreen(target, false, true)
+  tileWindows(columnWindows(target))
+end
+
+local function scheduleRetile()
+  if arranging or not config.autoColumns then
+    return
+  end
+
+  if retileTimer then
+    retileTimer:stop()
+  end
+
+  retileTimer = hs.timer.doAfter(0.25, tileFocusedScreen)
+end
+
+local function toggleAutoColumns()
+  config.autoColumns = not config.autoColumns
+  notify(config.autoColumns and "Auto columns on" or "Auto columns off")
+
+  if config.autoColumns then
+    tileFocusedScreen()
+  end
+end
+
+wf:subscribe({
+  hs.window.filter.windowCreated,
+  hs.window.filter.windowDestroyed,
+  hs.window.filter.windowMoved,
+  hs.window.filter.windowInCurrentSpace,
+  hs.window.filter.windowNotInCurrentSpace,
+  hs.window.filter.windowUnminimized,
+  hs.window.filter.windowNotVisible,
+}, scheduleRetile)
+
+hs.hotkey.bind(hyper, "c", tileFocusedScreen)
+hs.hotkey.bind(hyper, "v", toggleAutoColumns)
+
+hs.hotkey.bind(hyper, "a", function()
+  focusWindow("left")
+end)
+
+hs.hotkey.bind(hyper, "d", function()
+  focusWindow("right")
+end)
+
+hs.hotkey.bind(hyper, "w", function()
+  focusWindow("up")
+end)
+
+hs.hotkey.bind(hyper, "s", function()
+  focusWindow("down")
+end)
+
+hs.hotkey.bind(hyperShift, "a", function()
+  swapWindow("left")
+end)
+
+hs.hotkey.bind(hyperShift, "d", function()
+  swapWindow("right")
+end)
+
+hs.hotkey.bind(hyperShift, "w", function()
+  swapWindow("up")
+end)
+
+hs.hotkey.bind(hyperShift, "s", function()
+  swapWindow("down")
+end)
+
+hs.hotkey.bind(hyper, "m", function()
+  placeFocused(1, 1, 1)
+end)
+
+hs.hotkey.bind(hyper, "f", function()
+  placeFocused(1, 1, 1)
+end)
+
+hs.hotkey.bind(hyper, "1", function()
+  placeFocused(1, 1, 3)
+end)
+
+hs.hotkey.bind(hyper, "2", function()
+  placeFocused(2, 1, 3)
+end)
+
+hs.hotkey.bind(hyper, "3", function()
+  placeFocused(3, 1, 3)
+end)
+
+hs.hotkey.bind(hyper, "4", function()
+  placeFocused(1, 2, 3)
+end)
+
+hs.hotkey.bind(hyper, "5", function()
+  placeFocused(2, 2, 3)
+end)
+
+hs.hotkey.bind(hyper, "q", function()
+  moveFocusedToScreen(-1)
+end)
+
+hs.hotkey.bind(hyper, "e", function()
+  moveFocusedToScreen(1)
+end)
+
+hs.hotkey.bind(hyper, "r", hs.reload)
+
+local rguiBindings = {}
+
+local function bindRgui(key, handler, shiftedHandler)
+  rguiBindings[hs.keycodes.map[key]] = {
+    normal = handler,
+    shifted = shiftedHandler,
+  }
+end
+
+bindRgui("a", function()
+  focusWindow("left")
+end, function()
+  swapWindow("left")
+end)
+
+bindRgui("d", function()
+  focusWindow("right")
+end, function()
+  swapWindow("right")
+end)
+
+bindRgui("w", function()
+  focusWindow("up")
+end, function()
+  swapWindow("up")
+end)
+
+bindRgui("s", function()
+  focusWindow("down")
+end, function()
+  swapWindow("down")
+end)
+
+bindRgui("c", tileFocusedScreen)
+bindRgui("v", toggleAutoColumns)
+
+bindRgui("m", function()
+  placeFocused(1, 1, 1)
+end)
+
+bindRgui("f", function()
+  placeFocused(1, 1, 1)
+end)
+
+bindRgui("1", function()
+  placeFocused(1, 1, 3)
+end)
+
+bindRgui("2", function()
+  placeFocused(2, 1, 3)
+end)
+
+bindRgui("3", function()
+  placeFocused(3, 1, 3)
+end)
+
+bindRgui("4", function()
+  placeFocused(1, 2, 3)
+end)
+
+bindRgui("5", function()
+  placeFocused(2, 2, 3)
+end)
+
+bindRgui("q", function()
+  moveFocusedToScreen(-1)
+end)
+
+bindRgui("e", function()
+  moveFocusedToScreen(1)
+end)
+
+bindRgui("r", hs.reload)
+
+local rguiTap = hs.eventtap.new({
+  hs.eventtap.event.types.flagsChanged,
+  hs.eventtap.event.types.keyDown,
+}, function(event)
+  local keyCode = event:getKeyCode()
+  local eventType = event:getType()
+
+  if eventType == hs.eventtap.event.types.flagsChanged and keyCode == rightCommandKeyCode then
+    rightCommandDown = event:getFlags().cmd
+    if rightCommandDown then
+      rightCommandUsed = false
+    elseif not rightCommandUsed then
+      hs.eventtap.keyStroke({}, "escape", 0)
+    end
+    return false
+  end
+
+  if eventType ~= hs.eventtap.event.types.keyDown or not rightCommandDown then
+    return false
+  end
+
+  local binding = rguiBindings[keyCode]
+  if not binding then
+    return false
+  end
+
+  rightCommandUsed = true
+  local flags = event:getFlags()
+  local handler = flags.shift and binding.shifted or binding.normal
+  if handler then
+    handler()
+  end
+
+  return true
+end)
+
+rguiTap:start()
+
+notify("Hammerspoon loaded")

nix-darwin/flake.nix

@@ -71,6 +71,23 @@
     ...
   }: let
     libDir = ../dotfiles/lib;
+    # Keep this on the currently-existing macOS account until the target user
+    # exists locally and its home directory has been migrated.
+    activePrimaryUser = "kat";
+    targetPrimaryUser = "imalison";
+    primaryUser = activePrimaryUser;
+    personalUsers = [
+      activePrimaryUser
+      targetPrimaryUser
+    ];
+    # Home Manager activation should only target accounts that exist today.
+    # Add targetPrimaryUser here when the macOS account is ready.
+    enabledHomeUsers = [
+      activePrimaryUser
+    ];
+    sharedHomeModules = [./home/common.nix];
+    ivanHomeModules = [./home/ivan.nix];
+    homeForUser = user: "/Users/${user}";
     configuration = {
       pkgs,
       lib,
@@ -78,12 +95,21 @@
       ...
     }: let
       essentialPkgs = (import ../nix-shared/system/essential.nix {inherit pkgs lib inputs;}).environment.systemPackages;
+      disabledAppleSymbolicHotKey = parameters: {
+        enabled = false;
+        value = {
+          inherit parameters;
+          type = "standard";
+        };
+      };
     in {
       networking.hostName = "mac-demarco-mini";
-      imports = [(import ./gitea-actions-runner.nix)];
+      imports = [
+        (import ./gitea-actions-runner.nix)
+      ];
       age = {
         identityPaths = [
-          "${config.users.users.kat.home}/.ssh/id_ed25519"
+          "${config.users.users.${primaryUser}.home}/.ssh/id_ed25519"
           "/etc/ssh/ssh_host_ed25519_key"
           "/etc/ssh/ssh_host_rsa_key"
         ];
@@ -135,37 +161,31 @@
         XDG_RUNTIME_DIR = "/var/lib/gitea-runner/tmp";
       };
 
-      system.primaryUser = "kat";
+      system.primaryUser = primaryUser;
+
+      security.sudo.extraConfig = ''
+        ${primaryUser} ALL=(ALL) NOPASSWD: ALL
+      '';
 
       system.defaults.NSGlobalDomain."com.apple.swipescrolldirection" = false;
       system.defaults.CustomUserPreferences."com.apple.screensaver".idleTime = 300;
       system.defaults.CustomUserPreferences."com.apple.symbolichotkeys".AppleSymbolicHotKeys = {
-        "60" = {
+        # Disable input source shortcuts that conflict with launcher usage.
-          enabled = false;
+        "60" = disabledAppleSymbolicHotKey [32 49 262144];
-          value = {
+        "61" = disabledAppleSymbolicHotKey [32 49 786432];
-            parameters = [
+        # Disable Spotlight's Command-Space and Finder search window shortcuts.
-              32
+        "64" = disabledAppleSymbolicHotKey [32 49 1048576];
-              49
+        "65" = disabledAppleSymbolicHotKey [32 49 1572864];
-              262144
-            ];
-            type = "standard";
-          };
-        };
-        "61" = {
-          enabled = false;
-          value = {
-            parameters = [
-              32
-              49
-              786432
-            ];
-            type = "standard";
-          };
-        };
       };
       system.defaults.screensaver.askForPassword = false;
       system.defaults.screensaver.askForPasswordDelay = 0;
 
+      system.activationScripts.postActivation.text = ''
+        echo >&2 "current-host screensaver defaults..."
+        launchctl asuser "$(id -u -- ${primaryUser})" sudo --user=${primaryUser} -- defaults -currentHost write com.apple.screensaver askForPassword -bool false
+        launchctl asuser "$(id -u -- ${primaryUser})" sudo --user=${primaryUser} -- defaults -currentHost write com.apple.screensaver askForPasswordDelay -int 0
+      '';
+
       power.sleep = {
         computer = "never";
         display = "never";
@@ -237,6 +257,7 @@
         casks = [
           "codex-app"
           "ghostty"
+          "hammerspoon"
           "raycast"
           "vlc"
         ];
@@ -248,6 +269,10 @@
 
       # Auto upgrade nix package and the daemon service.
       launchd.user.envVariables.PATH = config.environment.systemPath;
+      launchd.user.agents.hammerspoon.serviceConfig = {
+        ProgramArguments = ["/usr/bin/open" "-gja" "Hammerspoon"];
+        RunAtLoad = true;
+      };
 
       programs.direnv.enable = true;
 
@@ -274,17 +299,19 @@
       # The platform the configuration will be used on.
 
       nixpkgs.hostPlatform = "aarch64-darwin";
-      users.users.kat.openssh.authorizedKeys.keys = inputs.railbird-secrets.keys.kanivanKeys;
+      users.users =
-      users.users.gitea-runner = {
+        lib.genAttrs personalUsers (user: {
+          name = user;
+          home = homeForUser user;
+          openssh.authorizedKeys.keys = inputs.railbird-secrets.keys.kanivanKeys;
+        })
+        // {
+          gitea-runner = {
             name = "gitea-runner";
             isHidden = false;
             home = "/Users/gitea-runner";
             createHome = false;
           };
-
-      users.users.kat = {
-        name = "kat";
-        home = "/Users/kat";
         };
 
       programs.zsh = {
@@ -298,10 +325,10 @@
         extraSpecialArgs = {
           inherit inputs libDir;
         };
-        sharedModules = [./home/common.nix];
+        sharedModules = sharedHomeModules;
-        users.kat = {
+        users = lib.genAttrs enabledHomeUsers (_: {
-          imports = [./home/kat.nix];
+          imports = ivanHomeModules;
-        };
+        });
       };
     };
   in {
@@ -313,9 +340,11 @@
         {
           nix-homebrew = {
             enable = true;
-            user = "kat";
+            user = primaryUser;
             autoMigrate = true;
-            package = inputs.brew-src // {
+            package =
+              inputs.brew-src
+              // {
                 name = "brew-5.1.7";
                 version = "5.1.7";
               };

nix-darwin/home/common.nix

@@ -107,10 +107,26 @@ in {
 
   myModules.codexGeneratedSkills.enable = true;
 
-  home.packages = [
+  home.packages =
-    pkgs.gnupg
+    [
       (pkgs.pass.withExtensions (ext: [ext.pass-otp]))
-  ];
+    ]
+    ++ (with pkgs; [
+      alejandra
+      alt-tab-macos
+      claude-code
+      cocoapods
+      codex
+      gnupg
+      nodejs
+      playwright-cli
+      prettier
+      slack
+      tea
+      typescript
+      vim
+      yarn
+    ]);
 
   home.activation.repairGpgHomeAndImportKey = lib.hm.dag.entryAfter ["writeBoundary"] ''
     gnupg_dir="$HOME/.gnupg"
@@ -141,6 +157,27 @@ in {
     fi
   '';
 
+  home.activation.configureRaycastHotkey = lib.hm.dag.entryAfter ["writeBoundary"] ''
+    raycast_domain="com.raycast.macos"
+    desired_hotkey="Command-49"
+    current_hotkey="$(/usr/bin/defaults read "$raycast_domain" raycastGlobalHotkey 2>/dev/null || true)"
+
+    if [ -d /Applications/Raycast.app ]; then
+      /usr/bin/xattr -dr com.apple.quarantine /Applications/Raycast.app 2>/dev/null || true
+    fi
+
+    if [ "$current_hotkey" != "$desired_hotkey" ]; then
+      /usr/bin/defaults write "$raycast_domain" raycastGlobalHotkey -string "$desired_hotkey"
+      /usr/bin/defaults write "$raycast_domain" mainWindow_isMonitoringGlobalHotkeys -bool true
+
+      if /usr/bin/pgrep -x Raycast >/dev/null 2>&1; then
+        /usr/bin/killall Raycast || true
+        /bin/sleep 1
+      fi
+      /usr/bin/open /Applications/Raycast.app || true
+    fi
+  '';
+
   home.sessionPath = [
     "$HOME/.cargo/bin"
     "${libDir}/bin"
@@ -205,8 +242,7 @@ in {
       };
       ProgramArguments = [
         "/usr/bin/open"
-        "-a"
+        "/Applications/Raycast.app"
-        "Raycast"
       ];
       KeepAlive = false;
       ProcessType = "Interactive";
@@ -216,6 +252,22 @@ in {
     };
   };
 
+  launchd.agents.alt-tab = lib.mkIf pkgs.stdenv.isDarwin {
+    enable = true;
+    config = {
+      ProgramArguments = [
+        "/usr/bin/open"
+        "-gj"
+        "${pkgs.alt-tab-macos}/Applications/AltTab.app"
+      ];
+      KeepAlive = false;
+      ProcessType = "Interactive";
+      RunAtLoad = true;
+      StandardOutPath = "${config.home.homeDirectory}/Library/Logs/alt-tab-launchd.log";
+      StandardErrorPath = "${config.home.homeDirectory}/Library/Logs/alt-tab-launchd.err.log";
+    };
+  };
+
   programs.starship = {
     enable = true;
   };
@@ -247,4 +299,6 @@ in {
   };
 
   xdg.configFile = xdgConfigLinks;
+
+  home.stateVersion = "24.05";
 }

nix-darwin/home/ivan.nix

@@ -1,18 +1,8 @@
-{pkgs, ...}: {
+{
-  home.packages = with pkgs; [
+  config,
-    alejandra
+  pkgs,
-    claude-code
+  ...
-    cocoapods
+}: {
-    codex
-    nodejs
-    prettier
-    slack
-    tea
-    typescript
-    vim
-    yarn
-  ];
-
   services.git-sync = {
     enable = true;
     package =
@@ -21,16 +11,14 @@
       else pkgs.git-sync;
     repositories = {
       org = {
-        path = "/Users/kat/org";
+        path = "${config.home.homeDirectory}/org";
         uri = "git@github.com:colonelpanic8/org.git";
         interval = 180;
       };
       password-store = {
-        path = "/Users/kat/.password-store";
+        path = "${config.home.homeDirectory}/.password-store";
         uri = "git@github.com:IvanMalison/.password-store.git";
       };
     };
   };
-
-  home.stateVersion = "24.05";
 }

nix-shared/overlays/default.nix

@@ -312,7 +312,7 @@ from transformers import (/' \
     });
 
   happy-coder = final.callPackage ./packages/happy-coder { };
-  playwright-cli = final.callPackage ./packages/playwright-cli { };
+  playwright-cli = final.callPackage ../../nixos/packages/playwright-cli { };
   t3code = final.callPackage ./packages/t3code { };
   # Custom Waybar fork for workspace taskbar support + external SNI watcher option.
   waybar = prev.waybar.overrideAttrs (old: {