diff --git a/Installomator.sh b/Installomator.sh
index 6b4ec95..dd374a7 100755
--- a/Installomator.sh
+++ b/Installomator.sh
@@ -31,31 +31,31 @@ fi
 #
 #   the team ID is the ten-digit ID at the end of the line starting with 'origin='
 # 
-# - dmgName: (optional)
+# - archiveName: (optional)
 #   The name of the downloaded dmg
-#   When not given the dmgName is derived from the last part of the downloadURL
+#   When not given the archiveName is derived from the last part of the downloadURL
 #
 # - appName: (optional)
 #   file name of the app bundle in the dmg to verify and copy (include .app)
-#   When not given, the App name is derived from the dmgName by removing the extension
+#   When not given, the App name is derived from the archiveName by removing the extension
 #   and adding .app
 #
 # - targetDir: (optional)
 #   Applications will be copied to this directory, remember to omit trailing '/'
-#   default value is '/Applications'
-
-targetDir="/Applications"
-
+#   default value is '/Applications' for dmg and zip installations
+#   for pkgs default targetDir is "/"
 
 # todos:
 
 # TODO: add pkg support
+# TODO: add zip support
 # TODO: check for running processes and either abort or prompt user
 # TODO: log version of installed software
 # TODO: notification when done
 
 # functions to help with getting info
 
+# will get the latest release download from a github repo
 downloadURLFromGit() { # $1 git user name, $2 git repo name
     gitusername=${1?:"no git user name"}
     gitreponame=${2?:"no git repo name"}
@@ -89,13 +89,17 @@ case $identifier in
         ;;
     Firefox)
         downloadURL="https://download.mozilla.org/?product=firefox-latest&os=osx&lang=en-US"
-        dmgName="Firefox.dmg"
+        archiveName="Firefox.dmg"
         expectedTeamID="43AQ936H96"
         ;;
     WhatsApp)
         downloadURL="https://web.whatsapp.com/desktop/mac/files/WhatsApp.dmg"
         expectedTeamID="57T9237FN3"
         ;;
+    desktoppr)
+        downloadURL=$(downloadURLFromGit "scriptingosx" "desktoppr")
+        expectedTeamID="JME5BW3F3R"
+        ;;
     
     # these identifiers exist for testing
     brokenDownloadURL)
@@ -120,14 +124,7 @@ case $identifier in
         ;;
 esac
 
-if [ -z "$dmgName" ]; then
-    dmgName="${downloadURL##*/}"
-fi
-
-if [ -z "$appName" ]; then
-    appName="${dmgName%%.*}.app"
-fi
-
+# functions
 cleanupAndExit() { # $1 = exit code
     if [ "$DEBUG" -eq 0 ]; then
         # remove the temporary working directory when done
@@ -145,6 +142,140 @@ cleanupAndExit() { # $1 = exit code
     exit "$1"
 }
 
+installFromDMG() {
+    # mount the dmg
+    echo "Mounting $tmpDir/$archiveName"
+    # set -o pipefail
+    if ! dmgmount=$(hdiutil attach "$tmpDir/$archiveName" -nobrowse -readonly | tail -n 1 | cut -c 54- ); then
+        echo "Error mounting $tmpDir/$archiveName"
+        cleanupAndExit 3
+    fi
+    echo "Mounted: $dmgmount"
+
+    # check if app exists
+    if [ ! -e "$dmgmount/$appName" ]; then
+        echo "could not find: $dmgmount/$appName"
+        cleanupAndExit 8
+    fi
+
+    # verify with spctl
+    echo "Verifying: $dmgmount/$appName"
+    if ! teamID=$(spctl -a -vv "$dmgmount/$appName" 2>&1 | awk '/origin=/ {print $NF }' ); then
+        echo "Error verifying $dmgmount/$appName"
+        cleanupAndExit 4
+    fi
+
+    echo "Team ID: $teamID (expected: $expectedTeamID )"
+
+    if [ "($expectedTeamID)" != "$teamID" ]; then
+        echo "Team IDs do not match!"
+        cleanupAndExit 5
+    fi
+
+    # check for root
+    if [ "$(whoami)" != "root" ]; then
+        # not running as root
+        if [ "$DEBUG" -eq 0 ]; then
+            echo "not running as root, exiting"
+            cleanupAndExit 6
+        fi
+    
+        echo "DEBUG enabled, skipping copy and chown steps"
+        return 0
+    fi
+
+    # remove existing application
+    if [ -e "$targetDir/$appName" ]; then
+        echo "Removing existing $targetDir/$appName"
+        rm -Rf "$targetDir/$appName"
+    fi
+
+    # copy app to /Applications
+    echo "Copy $dmgmount/$appName to $targetDir"
+    if ! ditto "$dmgmount/$appName" "$targetDir"; then
+        echo "Error while copying!"
+        cleanupAndExit 7
+    fi
+
+
+    # set ownership to current user
+    currentUser=$( echo "show State:/Users/ConsoleUser" | scutil | awk '/Name :/ && ! /loginwindow/ { print $3 }' )
+    if [ -n "$currentUser" ]; then
+        echo "Changing owner to $currentUser"
+        chown -R "$currentUser" "$targetDir/$appName" 
+    else
+        echo "No user logged in, not changing user"
+    fi
+}
+
+installFromPKG() {
+    # verify with spctl
+    echo "Verifying: $archiveName"
+    if ! teamID=$(spctl -a -vv -t install "$archiveName" 2>&1 | awk '/origin=/ {print $NF }' ); then
+        echo "Error verifying $archiveName"
+        cleanupAndExit 4
+    fi
+
+    echo "Team ID: $teamID (expected: $expectedTeamID )"
+
+    if [ "($expectedTeamID)" != "$teamID" ]; then
+        echo "Team IDs do not match!"
+        cleanupAndExit 5
+    fi
+    
+    # check for root
+    if [ "$(whoami)" != "root" ]; then
+        # not running as root
+        if [ "$DEBUG" -eq 0 ]; then
+            echo "not running as root, exiting"
+            cleanupAndExit 6
+        fi
+    
+        echo "DEBUG enabled, skipping installation"
+        return 0
+    fi
+
+    # install pkg
+    echo "Installing $archiveName to $targetDir"
+    if ! installer -pkg "$archiveName" -tgt "$targetDir" ; then
+        echo "error installing $archiveName"
+        cleanupAndExit 9
+    fi
+}
+
+# main
+
+# extract info from data
+if [ -z "$archiveName" ]; then
+    # when not given use last element of URL
+    archiveName="${downloadURL##*/}"
+fi
+
+if [ -z "$type" ]; then
+    # when not given use extension of archiveName
+    type="${archiveName##*.}"
+fi
+
+if [ -z "$appName" ]; then
+    # when not given derive from archiveName
+    appName="${archiveName%.*}.app"
+fi
+
+if [ -z "$targetDir" ]; then
+    case $type in
+        dmg)
+            targetDir="/Applications"
+            ;;
+        pkg)
+            targetDir="/"
+            ;;
+        *)
+            echo "Cannot handle type $type"
+            cleanupAndExit 99
+            ;;
+    esac
+fi
+
 # create temporary working directory
 tmpDir=$(mktemp -d )
 if [ "$DEBUG" -eq 1 ]; then
@@ -162,80 +293,30 @@ fi
 
 # TODO: when user is logged in, and app is running, prompt user to quit app
 
-if [ -f "$dmgName" ] && [ "$DEBUG" -eq 1 ]; then
-    echo "$dmgName exists and DEBUG enabled, skipping download"
+if [ -f "$archiveName" ] && [ "$DEBUG" -eq 1 ]; then
+    echo "$archiveName exists and DEBUG enabled, skipping download"
 else
     # download the dmg
-    echo "Downloading $downloadURL to $dmgName"
-    if ! curl --location --fail --silent "$downloadURL" -o "$dmgName"; then
+    echo "Downloading $downloadURL to $archiveName"
+    if ! curl --location --fail --silent "$downloadURL" -o "$archiveName"; then
         echo "error downloading $downloadURL"
         cleanupAndExit 2
     fi
 fi
 
-# mount the dmg
-echo "Mounting $tmpDir/$dmgName"
-# set -o pipefail
-if ! dmgmount=$(hdiutil attach "$tmpDir/$dmgName" -nobrowse -readonly | tail -n 1 | cut -c 54- ); then
-    echo "Error mounting $tmpDir/$dmgName"
-    cleanupAndExit 3
-fi
-echo "Mounted: $dmgmount"
+case $type in
+    dmg)
+        installFromDMG
+        ;;
+    pkg)
+        installFromPKG
+        ;;
+    *)
+        echo "Cannot handle type $type"
+        cleanupAndExit 99
+        ;;
+esac
 
-# check if app exists
-if [ ! -e "$dmgmount/$appName" ]; then
-    echo "could not find: $dmgmount/$appName"
-    cleanupAndExit 8
-fi
-
-# verify with spctl
-echo "Verifying: $dmgmount/$appName"
-if ! teamID=$(spctl -a -vv "$dmgmount/$appName" 2>&1 | awk '/origin=/ {print $NF }' ); then
-    echo "Error verifying $dmgmount/$appName"
-    cleanupAndExit 4
-fi
-
-echo "Team ID: $teamID (expected: $expectedTeamID )"
-
-if [ "($expectedTeamID)" != "$teamID" ]; then
-    echo "Team IDs do not match!"
-    cleanupAndExit 5
-fi
-
-# check for root
-if [ "$(whoami)" != "root" ]; then
-    # not running as root
-    if [ "$DEBUG" -eq 0 ]; then
-        echo "not running as root, exiting"
-        cleanupAndExit 6
-    fi
-    
-    echo "DEBUG enabled, skipping copy and chown steps"
-    cleanupAndExit 0
-fi
-
-# remove existing application
-if [ -e "$targetDir/$appName" ]; then
-    echo "Removing existing $targetDir/$appName"
-    rm -Rf "$targetDir/$appName"
-fi
-
-# copy app to /Applications
-echo "Copy $dmgmount/$appName to $targetDir"
-if ! ditto "$dmgmount/$appName" "$targetDir"; then
-    echo "Error while copying!"
-    cleanupAndExit 7
-fi
-
-
-# set ownership to current user
-currentUser=$( echo "show State:/Users/ConsoleUser" | scutil | awk '/Name :/ && ! /loginwindow/ { print $3 }' )
-if [ -n "$currentUser" ]; then
-    echo "Changing owner to $currentUser"
-    chown -R "$currentUser" "$targetDir/$appName" 
-else
-    echo "No user logged in, not changing user"
-fi
 
 # TODO: notify when done