[zsh] Update init-macos

rc.darwin

@@ -34,8 +34,17 @@ function init-macos
     killall Dock
 
     # Put screenshots in Google Drive, in a directory according to hostname
-    name=`hostname -s | tr A-Z a-z`
-    loc="$HOME/Google Drive/Screenshots/$name"
-    mkdir -p "$loc"
-    defaults write com.apple.screencapture location "$loc"
+    icloud=`darwin-icloud-drive-path`
+    if [[ -d "$icloud" ]]; then
+	name=`hostname -s | tr A-Z a-z`
+	loc="$icloud/Screenshots/$name"
+	mkdir -p "$loc"
+	defaults write com.apple.screencapture location "$loc"
+    else
+	echo "iCloud directory doesn't exist: $icloud"
+    fi
+
+    echo "Disabling overly restrictive Gatekeeper"
+    # See https://techstuffer.com/this-app-is-damaged-error-macos-sierra/
+    sudo spctl --master-disable
 }