diff --git a/modules/common/home-manager.nix b/modules/common/home-manager.nix
index 4824466..3eca196 100644
--- a/modules/common/home-manager.nix
+++ b/modules/common/home-manager.nix
@@ -1,12 +1,6 @@
-{ lib, ... }: let
-  inherit (lib) enabled;
-in {
+{
   home-manager = {
     useGlobalPkgs   = true;
     useUserPackages = true;
-
-    sharedModules = [{
-      xdg = enabled {};
-    }];
   };
 }
diff --git a/modules/common/shell/0_nushell.nix b/modules/common/shell/0_nushell.nix
index 95b3822..0226b61 100644
--- a/modules/common/shell/0_nushell.nix
+++ b/modules/common/shell/0_nushell.nix
@@ -1,25 +1,66 @@
 { config, lib, pkgs, ... }: let
-  inherit (lib) attrNames attrValues const enabled filterAttrs mapAttrs readFile replaceStrings;
+  inherit (lib) attrNames attrValues concatStringsSep const enabled filter filterAttrs flatten foldl' head last listToAttrs mapAttrs mapAttrsToList match nameValuePair readFile replaceStrings splitString;
 
   package = pkgs.nushell;
 in {
+  shells."0" = package;
+
   home-manager.sharedModules = [(homeArgs: let
     config' = homeArgs.config;
 
-    environmentVariables = config.environment.variables
-    |> mapAttrs (const <| replaceStrings (attrNames config'.variablesMap) (attrValues config'.variablesMap))
+    environmentVariables = let
+      variablesMap = {
+        HOME = config'.home.homeDirectory;
+        USER = config'.home.username;
+
+        XDG_CACHE_HOME  = config'.xdg.cacheHome;
+        XDG_CONFIG_HOME = config'.xdg.configHome;
+        XDG_DATA_HOME   = config'.xdg.dataHome;
+        XDG_STATE_HOME  = config'.xdg.stateHome;
+      }
+      |> mapAttrsToList (name: value: [
+        { name = "\$${name}"; inherit value; }
+        { name = "\${${name}}"; inherit value; }
+      ])
+      |> flatten
+      |> listToAttrs;
+
+      environmentVariables = config.environment.variables;
+
+      homeVariables = config'.home.sessionVariables;
+
+      homeVariablesExtra = pkgs.runCommand "home-variables-extra.env" {} ''
+          bash -ic '
+            ${variablesMap
+            |> mapAttrsToList (name: value: "export ${name}='${value}'")
+            |> concatStringsSep "\n"}
+
+            alias export=echo
+            source ${config'.home.sessionVariablesPackage}/etc/profile.d/hm-session-vars.sh
+          ' > $out
+        ''
+        |> readFile
+        |> splitString "\n"
+        |> filter (s: s != "")
+        |> map (match "([^=]+)=(.*)")
+        |> map (keyAndValue: nameValuePair (head keyAndValue) (last keyAndValue))
+        |> foldl' (x: y: x // y) {};
+
+      homeSearchVariables = config'.home.sessionSearchVariables
+        |> mapAttrs (const <| concatStringsSep ":");
+    in environmentVariables
+    // homeVariables
+    // homeVariablesExtra
+    // homeSearchVariables
+    |> mapAttrs (const <| replaceStrings (attrNames variablesMap) (attrValues variablesMap))
     |> filterAttrs (name: const <| name != "TERM");
   in {
-    shells."0" = package;
-
     programs.nushell = enabled {
       inherit package;
 
+      inherit (config.environment) shellAliases;
       inherit environmentVariables;
 
-      shellAliases = config.environment.shellAliases
-        |> filterAttrs (_: value: value != null);
-
       configFile.text = readFile ./0_nushell.nu;
     };
   })];
diff --git a/modules/common/shell/default.nix b/modules/common/shell/default.nix
index 9f68be9..a22401e 100644
--- a/modules/common/shell/default.nix
+++ b/modules/common/shell/default.nix
@@ -1,78 +1,16 @@
-{ config, lib, pkgs, ... }: let
-  inherit (lib) attrsToList catAttrs concatStringsSep const filter flatten foldl' getAttr getExe head last listToAttrs mapAttrs mapAttrsToList match mkConst mkIf mkValue nameValuePair readFile sortOn splitString toInt unique;
+{ config, lib, ... }: let
+  inherit (lib) attrsToList catAttrs mkConst mkIf mkValue sortOn toInt;
 in {
-  environment.shells = config.home-manager.users
-  |> mapAttrsToList (const <| getAttr "shellsByPriority")
-  |> flatten
-  |> unique;
+  options.shells = mkValue {};
 
-  home-manager.sharedModules = [
+  options.shellsByPriority = mkConst (config.shells
+    |> attrsToList
+    |> sortOn ({ name, ... }: toInt name)
+    |> catAttrs "value");
 
-  (homeArgs: let
-    config' = homeArgs.config;
-  in {
-    options.shells = mkValue {};
-
-    options.shellsByPriority = mkConst (config'.shells
-      |> attrsToList
-      |> sortOn ({ name, ... }: toInt name)
-      |> catAttrs "value");
-
-    options.variablesMap = mkConst ({
-      HOME = config'.home.homeDirectory;
-      USER = config'.home.username;
-
-      XDG_CACHE_HOME  = config'.xdg.cacheHome;
-      XDG_CONFIG_HOME = config'.xdg.configHome;
-      XDG_DATA_HOME   = config'.xdg.dataHome;
-      XDG_STATE_HOME  = config'.xdg.stateHome;
-    }
-    |> mapAttrsToList (name: value: [
-      { name = "\$${name}"; inherit value; }
-      { name = "\${${name}}"; inherit value; }
-    ])
-    |> flatten
-    |> listToAttrs);
-  })
-
-  (mkIf config.isDarwin (homeArgs: let
-    config' = homeArgs.config;
-
-    homeSessionVariables = let
-      homeSessionVariables = config'.home.sessionVariables;
-
-      homeSessionVariablesExtra = pkgs.runCommand "home-variables-extra.env" {} ''
-          bash -ic '
-            ${config'.variablesMap
-            |> mapAttrsToList (name: value: "export ${name}='${value}'")
-            |> concatStringsSep "\n"}
-
-            alias export=echo
-            source ${config'.home.sessionVariablesPackage}/etc/profile.d/hm-session-vars.sh
-          ' > $out
-        ''
-        |> readFile
-        |> splitString "\n"
-        |> filter (s: s != "")
-        |> map (match "([^=]+)=(.*)")
-        |> map (keyAndValue: nameValuePair (head keyAndValue) (last keyAndValue))
-        |> foldl' (x: y: x // y) {};
-
-      homeSessionSearchVariables = config'.home.sessionSearchVariables
-        |> mapAttrs (const <| concatStringsSep ":");
-    in homeSessionVariables
-    // homeSessionVariablesExtra
-    // homeSessionSearchVariables;
-  in {
-    home.file.".zshrc".text = mkIf config.isDarwin /* zsh */ ''
-      ${homeSessionVariables
-      |> mapAttrsToList (name: value: "export ${name}='${value}'")
-      |> concatStringsSep "\n"}
-      SHELL='${getExe <| head config'.shellsByPriority}' exec "$SHELL"
-    '';
-  }))
-
-  ];
+  config = mkIf config.isDarwin {
+    environment.shells = config.shellsByPriority;
+  };
 
   # More at modules/linux/shell/default.nix.
   #
diff --git a/modules/common/shell/shadow-xcode.nix b/modules/common/shell/shadow-xcode.nix
deleted file mode 100644
index e66f932..0000000
--- a/modules/common/shell/shadow-xcode.nix
+++ /dev/null
@@ -1,78 +0,0 @@
-{ config, lib, pkgs, ... }: let
-  inherit (lib) getExe mkAfter mkIf;
-in {
-  home-manager.sharedModules = mkIf config.isDarwin [(homeArgs: let
-    config' = homeArgs.config;
-    lib' = homeArgs.lib;
-
-    inherit (lib'.hm.dag) entryAfter;
-
-    # Replace with the command that has been triggering
-    # the "install developer tools" popup.
-    #
-    # Set by default to "SplitForks" because who even uses that?
-    originalTrigger = "/usr/bin/SplitForks";
-    originalTriggerLiteral = ''"${originalTrigger}"'';
-
-    # Where the symbolic links to `/usr/bin/false` will
-    # be created in to shadow all popup-triggering binaries.
-    #
-    # Place this in your $env.PATH right before /usr/bin
-    # to never get the "install developer tools" popup ever again:
-    #
-    # ```nu
-    # let usr_bin_index = $env.PATH
-    # | enumerate
-    # | where item == /usr/bin
-    # | get 0.index
-    #
-    # $env.PATH = $env.PATH | insert $usr_bin_index $shadow_path
-    # ```
-    #
-    # Do NOT set this to a path that you use for other things,
-    # it will get deleted if it exists to only have the shadowers.
-    shadowPath = "${config'.home.homeDirectory}/.local/shadow"; # Did you read the comment?
-    shadowPathLiteral = ''"${shadowPath}"'';
-  in {
-    home.activation.shadow = entryAfter [ "installPackages" "linkGeneration" ] /* bash */ ''
-      ${getExe pkgs.nushell} ${pkgs.writeScript "shadow-xcode.nu" ''
-        use std null_device
-
-        let original_size = ls ${originalTriggerLiteral} | get 0.size
-
-        let shadoweds = ls /usr/bin
-        | flatten
-        | where {
-          # All xcode-select binaries are the same size, so we can narrow down and not run weird stuff.
-          $in.size == $original_size and (try {
-            open $null_device | ^$in.name out+err>| str contains "xcode-select: note: No developer tools were found, requesting install."
-          } catch {
-            # If it exited with a nonzero code, it's probably already set up.
-            false
-          })
-        }
-        | get name
-        | each { path basename }
-
-        rm -rf ${shadowPathLiteral}
-        mkdir ${shadowPathLiteral}
-
-        for shadowed in $shadoweds {
-          ln --symbolic /usr/bin/false (${shadowPathLiteral} | path join $shadowed)
-        }
-      ''}
-    '';
-
-    programs.nushell.configFile.text = mkAfter /* nu */ ''
-      do --env {
-        let usr_bin_index = $env.PATH
-        | enumerate
-        | where item == /usr/bin
-        | get 0.index;
-
-        $env.PATH = $env.PATH
-        | insert $usr_bin_index ${shadowPathLiteral};
-      }
-    '';
-  })];
-}
diff --git a/modules/common/ssh/default.nix b/modules/common/ssh/default.nix
index a83abe4..fca23d2 100644
--- a/modules/common/ssh/default.nix
+++ b/modules/common/ssh/default.nix
@@ -24,14 +24,12 @@ in {
     mode = "444";
   };
 
-  home-manager.sharedModules = [(homeArgs: let
-    lib' = homeArgs.lib;
-
-    inherit (lib'.hm.dag) entryAfter;
-  in {
-    home.activation.createControlPath = entryAfter [ "writeBoundary" ] /* bash */ ''
-      mkdir --parents ${controlPath}
-    '';
+  home-manager.sharedModules = [{
+    home.activation.createControlPath = {
+      after  = [ "writeBoundary" ];
+      before = [];
+      data   = "mkdir --parents ${controlPath}";
+    };
 
     programs.ssh = enabled {
       controlMaster       = "auto";
@@ -51,7 +49,7 @@ in {
         };
       };
     };
-  })];
+  }];
 
   environment.systemPackages = mkIf config.isDesktop [
     pkgs.mosh
diff --git a/modules/darwin/dock.nix b/modules/darwin/dock.nix
index 4acdc08..35bc60b 100644
--- a/modules/darwin/dock.nix
+++ b/modules/darwin/dock.nix
@@ -1,38 +1,21 @@
 {
   system.defaults.dock = {
-    autohide   = true;
-    showhidden = true; # Translucent.
+    autohide = true;
 
     mouse-over-hilite-stack = true;
 
     show-recents = false;
     mru-spaces   = false;
 
-    tilesize      = 48;
-    magnification = false;
+    tilesize = 48;
 
     enable-spring-load-actions-on-all-items = true;
 
+    expose-animation-duration = 0.1;
+
     persistent-apps = [
       { app = "/Applications/Zen.app"; }
       { app = "/Applications/Ghostty.app"; }
     ];
   };
-
-  system.defaults.CustomSystemPreferences."com.apple.dock" = {
-    autohide-time-modifier    = 0.0;
-    autohide-delay            = 0.0;
-    expose-animation-duration = 0.0;
-    springboard-show-duration = 0.0;
-    springboard-hide-duration = 0.0;
-    springboard-page-duration = 0.0;
-
-    # Disable hot corners.
-    wvous-tl-corner = 0;
-    wvous-tr-corner = 0;
-    wvous-bl-corner = 0;
-    wvous-br-corner = 0;
-
-    launchanim = 0;
-  };
 }
diff --git a/modules/darwin/finder.nix b/modules/darwin/finder.nix
index b97baf9..15f69c3 100644
--- a/modules/darwin/finder.nix
+++ b/modules/darwin/finder.nix
@@ -26,32 +26,10 @@
 
     NewWindowTarget = "Home";
 
-    QuitMenuItem = true; # Allow quitting of Finder application
-
     ShowExternalHardDrivesOnDesktop = true;
     ShowMountedServersOnDesktop     = true;
     ShowPathbar                     = true;
     ShowRemovableMediaOnDesktop     = true;
     ShowStatusBar                   = true;
   };
-
-  system.defaults.CustomSystemPreferences."com.apple.finder" = {
-    DisableAllAnimations = true;
-
-    FXArrangeGroupViewBy = "Name";
-    FxDefaultSearchScope = "SCcf"; # Search in current folder by default.
-
-    WarnOnEmptyTrash = false;
-  };
-
-  home-manager.sharedModules = [(homeArgs: let
-    lib' = homeArgs.lib;
-
-    inherit (lib'.hm.dag) entryAfter;
-  in {
-    home.activation.showLibrary = entryAfter [ "writeBoundary" ] /* bash */ ''
-      # Unhide ~/Library.
-      /usr/bin/chflags nohidden ~/Library
-    '';
-  })];
 }
diff --git a/modules/darwin/paperwm.nix b/modules/darwin/paperwm.nix
index 13c0272..f5d0e55 100644
--- a/modules/darwin/paperwm.nix
+++ b/modules/darwin/paperwm.nix
@@ -1,10 +1,8 @@
 { config, lib, pkgs, ... }: let
-  inherit (lib) mkAfter;
+  inherit (lib) mkAfter mkIf;
 in {
   system.defaults.NSGlobalDomain = {
-    _HIHideMenuBar = true; # Automatically hide/show the menu bar.
-
-    AppleInterfaceStyle = if lib.isDark config.theme then "Dark" else null;
+    AppleInterfaceStyle = mkIf (lib.isDark config.theme) "Dark";
 
     AppleScrollerPagingBehavior = true; # Jump to the spot that was pressed in the scrollbar.
     AppleShowScrollBars         = "WhenScrolling";
@@ -14,16 +12,16 @@ in {
     AppleEnableSwipeNavigateWithScrolls      = false;
 
     AppleWindowTabbingMode = "always"; # Always prefer tabs for new windows.
-    AppleKeyboardUIMode      = 3;      # Full keyboard access.
-    ApplePressAndHoldEnabled = false;  # No ligatures when you press and hold a key, just repeat it.
+    AppleKeyboardUIMode      = 3; # Full keyboard access.
+    ApplePressAndHoldEnabled = false; # No ligatures when you press and hold a key, just repeat it.
 
     NSScrollAnimationEnabled = true;
-    NSWindowResizeTime       = 0.003;
+    NSWindowResizeTime       = 0.001;
 
     "com.apple.keyboard.fnState" = false; # Don't invert Fn.
-    "com.apple.trackpad.scaling" = 1.5;   # Faster mouse speed.
+    "com.apple.trackpad.scaling" = 1.5;  # Faster mouse speed.
 
-    InitialKeyRepeat = 12;
+    InitialKeyRepeat = 15;
     KeyRepeat        = 1;
 
     NSAutomaticCapitalizationEnabled     = false;
@@ -31,15 +29,8 @@ in {
     NSAutomaticInlinePredictionEnabled   = false;
     NSAutomaticPeriodSubstitutionEnabled = false;
     NSAutomaticQuoteSubstitutionEnabled  = false;
-
-    NSNavPanelExpandedStateForSaveMode = true; # Expand save panel by default.
-    PMPrintingExpandedStateForPrint = true;    # Expand print panel by default.
-
-    AppleSpacesSwitchOnActivate = false; # Do not switch workspaces implicitly.
   };
 
-  system.defaults.CustomSystemPreferences."com.apple.dock".workspaces-auto-swoosh = false; # Read `AppleSpacesSwitchOnActivate`.
-
   system.defaults.CustomSystemPreferences."com.apple.AppleMultitouchTrackpad" = {
     TrackpadThreeFingerVertSwipeGesture = 0; # Four finger swipe up for mission control.
 
@@ -115,7 +106,7 @@ in {
         window:close()
       end
 
-      local currentSpaceIndex = function()
+      local spaceChange = function(offset)
         local current_space = hs.spaces.activeSpaceOnScreen()
         local spaces = hs.spaces.allSpaces()[hs.screen.mainScreen():getUUID()]
 
@@ -127,13 +118,6 @@ in {
           end
         end
 
-        return current_index
-      end
-
-      local changeSpaceBy = function(offset)
-        local current_index = currentSpaceIndex()
-        local spaces = hs.spaces.allSpaces()[hs.screen.mainScreen():getUUID()]
-
         local next_index = current_index + offset
         if next_index > #spaces then
           next_index = 1
@@ -141,22 +125,11 @@ in {
           next_index = #spaces
         end
 
-        if next_index == current_index then
-          return
-        end
-
         local next_space = spaces[next_index]
 
         hs.spaces.gotoSpace(next_space)
       end
 
-      local gotoSpace = function(index)
-        local current_index = currentSpaceIndex()
-        local change_by = index - current_index
-
-        changeSpaceBy(change_by)
-      end
-
       do -- HOTKEYS
         local super = { "cmd", "ctrl" }
         local super_alt = { "cmd", "ctrl", "alt" }
@@ -188,12 +161,12 @@ in {
         hs.hotkey.bind(super_alt, "f", PaperWM.actions.full_width)
 
         -- CYCLE SPACES -- SUPER[ + SHIFT FOR REVERSE] + TAB
-        hs.hotkey.bind(super, "tab", function() changeSpaceBy(1) end)
-        hs.hotkey.bind(super_shift, "tab", function() changeSpaceBy(-1) end)
+        hs.hotkey.bind(super, "tab", function() spaceChange(1) end)
+        hs.hotkey.bind(super_shift, "tab", function() spaceChange(-1) end)
 
         for index = 1, 9 do
           -- GO TO SPACE -- SUPER + NUMBER
-          hs.hotkey.bind(super, tostring(index), function() gotoSpace(index) end)
+          hs.hotkey.bind(super, tostring(index), PaperWM.actions["switch_space_" .. index])
 
           -- MOVE WINDOW TO SPACE -- SUPER + SHIFT + NUMBER
           hs.hotkey.bind(super_shift, tostring(index), PaperWM.actions["move_window_" .. index])
@@ -244,9 +217,9 @@ in {
             threshold = math.huge -- only trigger once per swipe
 
             if direction == "up" then
-              changeSpaceBy(1)
+              spaceChange(1)
             elseif direction == "down" then
-              changeSpaceBy(-1)
+              spaceChange(-1)
             end
           end
         end)
@@ -276,7 +249,7 @@ in {
             local button = hs.menubar.new()
             button:setTitle(hs.styledtext.new(title, attributes))
             button:setClickCallback(function()
-              gotoSpace(space)
+              hs.spaces.gotoSpace(space)
             end)
 
             table.insert(space_buttons, button)
diff --git a/modules/darwin/screencapture.nix b/modules/darwin/screencapture.nix
deleted file mode 100644
index 5e169cd..0000000
--- a/modules/darwin/screencapture.nix
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  system.defaults.screencapture.location = "~/Downloads";
-}
diff --git a/modules/darwin/screensaver.nix b/modules/darwin/screensaver.nix
deleted file mode 100644
index 73462b4..0000000
--- a/modules/darwin/screensaver.nix
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  system.defaults.CustomSystemPreferences."com.apple.screensaver" = {
-    # Request password immediately.
-    askForPassword      = 1;
-    askForPasswordDelay = 0;
-  };
-}
diff --git a/modules/darwin/trackpad.nix b/modules/darwin/trackpad.nix
deleted file mode 100644
index 6e73a8a..0000000
--- a/modules/darwin/trackpad.nix
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  system.defaults.trackpad = {
-    Clicking = false; # No touch-to-click.
-    Dragging = false; # No tap-to-drag.
-  };
-}
diff --git a/modules/linux/shell/default.nix b/modules/linux/shell/default.nix
index 7c29478..dff21fa 100644
--- a/modules/linux/shell/default.nix
+++ b/modules/linux/shell/default.nix
@@ -1,20 +1,9 @@
 { config, lib, pkgs, ... }: let
-  inherit (lib) concatStringsSep const flatten getAttr mapAttrsToList mkForce unique;
+  inherit (lib) concatStringsSep;
 in {
   users.defaultUserShell = pkgs.crash;
 
-  # TODO: This should be a per-user session variable. But we can't set
-  # a home-manager session variable because that's initialized by the
-  # shell itself! Lol.
-  environment.sessionVariables.SHELLS = config.home-manager.users
-  |> mapAttrsToList (const <| getAttr "shellsByPriority")
-  |> flatten
-  |> map (drv: "${drv}${drv.shellPath}")
-  |> unique
-  |> concatStringsSep ":";
-
-  environment.shellAliases = {
-    ls = mkForce null;
-    l  = mkForce null;
-  };
+  environment.sessionVariables.SHELLS = config.shellsByPriority
+    |> map (drv: "${drv}${drv.shellPath}")
+    |> concatStringsSep ":";
 }
diff --git a/rebuild.nu b/rebuild.nu
index 3ac8e08..1578e88 100755
--- a/rebuild.nu
+++ b/rebuild.nu
@@ -17,7 +17,7 @@ def --wrapped sync [...arguments] {
 # Rebuild a NixOS / Darwin config.
 def main --wrapped [
   host: string = "" # The host to build.
-  --remote          # Whether if this is a remote host. The config will be built on this host if it is.
+  --remote (-r)     # Whether if this is a remote host. The config will be built on this host if it is.
   ...arguments      # The arguments to pass to `nh {os,darwin} switch` and `nix` (separated by --).
 ]: nothing -> nothing {
   let host = if ($host | is-not-empty) {
@@ -34,10 +34,6 @@ def main --wrapped [
   }
 
   if $remote {
-    ssh -tt ("root@" + $host) "
-      rm --recursive --force ncc
-    "
-
     git ls-files
     | sync --files-from - ./ $"root@($host):ncc"
 
@@ -61,7 +57,77 @@ def main --wrapped [
 
   if (uname | get kernel-name) == "Darwin" {
     NH_BYPASS_ROOT_CHECK=true NH_NO_CHECKS=true nh darwin switch . ...$nh_flags -- ...$nix_flags
+
+    if not (xcode-select --install e>| str contains "Command line tools are already installed") {
+      darwin-shadow-xcode-popup
+    }
+
+    darwin-set-zshrc
   } else {
     NH_BYPASS_ROOT_CHECK=true NH_NO_CHECKS=true nh os switch . ...$nh_flags -- ...$nix_flags
   }
 }
+
+# Replace with the command that has been triggering
+# the "install developer tools" popup.
+#
+# Set by default to "SplitForks" because who even uses that?
+const original_trigger = "/usr/bin/SplitForks"
+
+# Where the symbolic links to `/usr/bin/false` will
+# be created in to shadow all popup-triggering binaries.
+#
+# Place this in your $env.PATH right before /usr/bin
+# to never get the "install developer tools" popup ever again:
+#
+# ```nu
+# let usr_bin_index = $env.PATH
+# | enumerate
+# | where item == /usr/bin
+# | get 0.index
+#
+# $env.PATH = $env.PATH | insert $usr_bin_index $shadow_path
+# ```
+#
+# Do NOT set this to a path that you use for other things,
+# it will get deleted if it exists to only have the shadowers.
+const shadow_path = "~/.local/shadow" | path expand # Did you read the comment?
+
+def darwin-shadow-xcode-popup [] {
+  print "shadowing xcode popup binaries..."
+
+  let original_size = ls $original_trigger | get 0.size
+
+  let shadoweds = ls /usr/bin
+  | flatten
+  | where {
+    # All xcode-select binaries are the same size, so we can narrow down and not run weird stuff.
+    $in.size == $original_size
+  }
+  | where {
+    ^$in.name e>| str contains "xcode-select: note: No developer tools were found, requesting install."
+  }
+  | get name
+  | each { path basename }
+
+  rm -rf $shadow_path
+  mkdir $shadow_path
+
+  for shadowed in $shadoweds {
+    let shadow_path = $shadow_path | path join $shadowed
+
+    ln --symbolic /usr/bin/false $shadow_path
+  }
+}
+
+def darwin-set-zshrc [] {
+  print "setting zshrc..."
+
+  let nu_command = $"let usr_bin_index = $env.PATH | enumerate | where item == /usr/bin | get 0.index;
+$env.PATH = $env.PATH | insert $usr_bin_index ($shadow_path | path expand);
+$env.SHELL = which nu | get 0.path" | str replace --all "\n" ""
+
+  let zshrc = $"exec nu --execute '($nu_command)'"
+
+  $zshrc | save --force ~/.zshrc
+}