diff --git a/hosts/kuro/default.nix b/hosts/kuro/default.nix
index 6266f841..f421325e 100644
--- a/hosts/kuro/default.nix
+++ b/hosts/kuro/default.nix
@@ -41,7 +41,6 @@
       cc.enable = true;
       common-lisp.enable = true;
       rust.enable = true;
-      scala.enable = true;
     };
 
     media = {
diff --git a/hosts/kuro/hardware-configuration.nix b/hosts/kuro/hardware-configuration.nix
index 142f5ebb..fd928d72 100644
--- a/hosts/kuro/hardware-configuration.nix
+++ b/hosts/kuro/hardware-configuration.nix
@@ -38,7 +38,7 @@
   # For my intuos4 pro. Doesn't work for cintiqs.
   services.xserver.wacom.enable = true;
   # TODO Move this to udev
-  # my.init = ''
+  # system.userActivationScripts.wacom.text = ''
   #   # lock tablet to main display
   #   if xinput list --id-only "Wacom Intuos Pro S Pen stylus" 2>&1 >/dev/null; then
   #     xinput map-to-output $(xinput list --id-only "Wacom Intuos Pro S Pen stylus") DVI-I-1
diff --git a/hosts/personal.nix b/hosts/personal.nix
index b47edcc4..7475080f 100644
--- a/hosts/personal.nix
+++ b/hosts/personal.nix
@@ -49,9 +49,7 @@
     INPUTRC = "$XDG_CACHE_HOME/readline/inputrc";
     LESSHISTFILE = "$XDG_CACHE_HOME/lesshst";
     WGETRC = "$XDG_CACHE_HOME/wgetrc";
-    XAUTHORITY = "/tmp/Xauthority";
   };
-  my.init = "[ -e ~/.Xauthority ] && mv -f ~/.Xauthority \"$XAUTHORITY\"";
 
   # Prevents ~/.esd_auth files by disabling the esound protocol module for
   # pulseaudio, which I likely don't need. Is there a better way?
@@ -67,7 +65,7 @@
         "${paConfigFile}/default.pa";
 
   # Clean up leftovers, as much as we can
-  system.activationScripts.clearHome = ''
+  system.userActivationScripts.cleanupHome = ''
     pushd /home/${config.my.username}
     rm -rf .compose-cache .nv .pki .dbus .fehbg
     [ -s .xsession-errors ] || rm -f .xsession-errors*
diff --git a/modules/default.nix b/modules/default.nix
index 7bd7bb8f..f0938907 100644
--- a/modules/default.nix
+++ b/modules/default.nix
@@ -35,13 +35,6 @@ in {
                  then concatMapStringsSep ":" (x: toString x) v
                  else (toString v));
       };
-      init = mkOption {
-        type = types.lines;
-        description = ''
-          An init script that runs after the environment has been rebuilt or
-          booted. Anything done here should be idempotent and inexpensive.
-        '';
-      };
 
       alias = mkOption {
         type = with types; nullOr (attrsOf (nullOr (either str path)));
@@ -78,8 +71,10 @@ in {
     environment.extraInit =
       let exportLines = mapAttrsToList (n: v: "export ${n}=\"${v}\"") config.my.env;
       in ''
+        export XAUTHORITY=/tmp/Xauthority
+        [ -e ~/.Xauthority ] && mv -f ~/.Xauthority "$XAUTHORITY"
+
         ${concatStringsSep "\n" exportLines}
-        ${config.my.init}
       '';
 
     # I avoid programs.zsh.*Init variables because they initialize too soon. My
diff --git a/modules/desktop/apps/vm.nix b/modules/desktop/apps/vm.nix
index ef4a821c..a4d3ab77 100644
--- a/modules/desktop/apps/vm.nix
+++ b/modules/desktop/apps/vm.nix
@@ -17,7 +17,8 @@ with lib;
   config = mkIf config.modules.desktop.apps.vm.enable {
     virtualisation.virtualbox.host = {
       enable = true;
-      enableExtensionPack = true; # urg, takes so long to build
+      # urg, takes so long to build, but needed for macOS guest
+      enableExtensionPack = true;
     };
 
     my.user.extraGroups = [ "vboxusers" ];
diff --git a/modules/shell/gnupg.nix b/modules/shell/gnupg.nix
index 96f0d025..401d2f4a 100644
--- a/modules/shell/gnupg.nix
+++ b/modules/shell/gnupg.nix
@@ -16,9 +16,10 @@ in {
         pinentry
       ];
       env.GNUPGHOME = "$XDG_CONFIG_HOME/gnupg";
-      init = "mkdir -p \"$GNUPGHOME\" -m 700";
     };
 
+    system.activationScripts.setupGnuPG = "mkdir -p \"${config.my.env.GNUPGHOME}\" -m 700";
+
     programs.gnupg.agent = {
       enable = true;
       enableSSHSupport = true;
diff --git a/modules/shell/zsh.nix b/modules/shell/zsh.nix
index 78449a3d..2961d8ca 100644
--- a/modules/shell/zsh.nix
+++ b/modules/shell/zsh.nix
@@ -51,8 +51,6 @@ with lib;
       promptInit = "";
     };
 
-    system.userActivationScripts.cleanupZgen = ''
-      rm -fv $XDG_CACHE_HOME/zsh/*
-    '';
+    system.userActivationScripts.cleanupZgen = "rm -fv $XDG_CACHE_HOME/zsh/*";
   };
 }