diff --git a/build/allowed_deps.txt b/build/allowed_deps.txt
index 383434c..3848634 100644
--- a/build/allowed_deps.txt
+++ b/build/allowed_deps.txt
@@ -175,6 +175,7 @@ bouncycastle-unbundled(minSdkVersion:30)
 bpf_syscall_wrappers(minSdkVersion:30)
 brotli-java(minSdkVersion:current)
 captiveportal-lib(minSdkVersion:29)
+car-rotary-lib(minSdkVersion:28)
 car-ui-lib(minSdkVersion:28)
 codecs_g711dec(minSdkVersion:29)
 com.google.android.material_material(minSdkVersion:14)
@@ -809,6 +810,7 @@ SettingsLibCollapsingToolbarBaseActivity(minSdkVersion:29)
 SettingsLibFooterPreference(minSdkVersion:21)
 SettingsLibHelpUtils(minSdkVersion:21)
 SettingsLibLayoutPreference(minSdkVersion:21)
+SettingsLibMainSwitchPreference(minSdkVersion:28)
 SettingsLibProgressBar(minSdkVersion:21)
 SettingsLibRadioButtonPreference(minSdkVersion:21)
 SettingsLibRestrictedLockUtils(minSdkVersion:21)
diff --git a/generate_ml_bundle.sh b/generate_ml_bundle.sh
new file mode 100755
index 0000000..06fd6c4
--- /dev/null
+++ b/generate_ml_bundle.sh
@@ -0,0 +1,150 @@
+#!/bin/bash -ex
+
+# Usage:
+# generate_ml_bundle.sh [args] source_tree dest_tree api_level
+#
+# Args:
+# -p Sets prefer=true in generated java_sdk_library_import rules
+# -a Also update artifects; default behaviour is just to generate build rules.
+
+PREFER=false
+UPDATE_ARTIFACTS=false
+while getopts "pa" opt; do
+    case ${opt} in
+          p ) PREFER=true;;
+          a ) UPDATE_ARTIFACTS=true;;
+          \? ) echo "Invalid option."
+            exit
+            ;;
+    esac
+done
+shift $((OPTIND -1))
+
+SOURCE_TREE=$1
+DESTINATION_TREE=$2
+API_LEVEL=$3
+SOURCE_TREE_TYPE=$(test -e ${DESTINATION_TREE}/vendor/unbundled_google/modules && echo GOOGLE || echo PARTNER)
+
+function sdk_lib_bp() {
+    modulename=$1
+    apexname=$2
+    shared_library=$(test \( "$apexname" == com.android.ipsec \) -a \( "$API_LEVEL" -lt 31 \) && echo true || echo false)
+    cat << EOF
+java_sdk_library_import {
+    name: "${modulename}",
+    owner: "google",
+    prefer: ${PREFER},
+    shared_library: ${shared_library},
+    apex_available: [
+        "${apexname}",
+        "test_${apexname}",
+    ],
+    public: {
+        jars: ["current/public/${modulename}.jar"],
+        stub_srcs: ["current/public/${modulename}.srcjar"],
+        current_api: "current/public/${modulename}.txt",
+        removed_api: "current/public/${modulename}-removed.txt",
+        sdk_version: "module_current",
+    },
+    system: {
+        jars: ["current/system/${modulename}.jar"],
+        stub_srcs: ["current/system/${modulename}.srcjar"],
+        current_api: "current/system/${modulename}.txt",
+        removed_api: "current/system/${modulename}-removed.txt",
+        sdk_version: "module_current",
+    },
+    module_lib: {
+        jars: ["current/module_lib/${modulename}.jar"],
+        stub_srcs: ["current/module_lib/${modulename}.srcjar"],
+        current_api: "current/module_lib/${modulename}.txt",
+        removed_api: "current/module_lib/${modulename}-removed.txt",
+        sdk_version: "module_current",
+    },
+}
+EOF
+}
+
+function make_sdk_library() {
+    libnames=$1
+    destdir=$2
+    apexname=$3
+    bp=${destdir}/Android.bp
+
+    #test -e "$bp"
+    mkdir -p "$(dirname "$bp")"
+
+    # Remove existing java_sdk_library_import and double newlines
+    existing_bp="$(sed -e '/java_sdk_library_import {/,/^}/d' "$bp" | tr -s \\n)"
+    echo "$existing_bp" > "$bp"
+    for libname in $libnames; do
+        echo >> "$bp"
+        echo "$(sdk_lib_bp ${libname} ${apexname})" | grep -v test_com.android.tethering >> "$bp"
+    done
+    #echo >> "$bp"
+
+    if [ "${UPDATE_ARTIFACTS}" == "true" ] ; then
+        rm -rf "${destdir}/current"
+        mkdir -p "${destdir}/current/"{public,system,module_lib}
+        for libname in $libnames; do
+            cp public/{${libname}.jar,api/${libname}.txt,api/${libname}-removed.txt} "${destdir}/current/public"
+            cp system/{${libname}.jar,api/${libname}.txt,api/${libname}-removed.txt} "${destdir}/current/system"
+            cp module-lib/{${libname}.jar,api/${libname}.txt,api/${libname}-removed.txt} "${destdir}/current/module_lib"
+        done
+    fi
+}
+
+function copy_notices() {
+    destdir=$1
+    apks=$(find $destdir -name '*.apks' | head -1)
+    if [[ -z "$apks" ]]; then
+        echo "no apks found in $destdir" >&2
+        exit
+    fi
+    filename=$(zipinfo -1 "$apks" *.apex */base-master.apk | head -1)
+    # com.android.ipsec is not expected to have a LICENSE, so don't fail if it doesn't.
+    unzip -p "$apks" "$filename" | bsdtar -xOf- assets/NOTICE.html.gz > "${destdir}/NOTICE.html.gz" || test "$2" == "com.android.ipsec"
+}
+
+function get_dest_dir() {
+    if [[ "$SOURCE_TREE_TYPE" == "PARTNER" ]]; then
+        echo "${DESTINATION_TREE}/vendor/partner_modules/${1}"
+    elif [[ "$SOURCE_TREE_TYPE" == "GOOGLE" ]]; then
+        echo -n "${DESTINATION_TREE}/prebuilts/module_sdk/"
+        case "$1" in
+            "IKEPrebuilt") echo "IPsec";;
+            "MediaFrameworkPrebuilt") echo "Media";;
+            "MediaProviderPrebuilt") echo "MediaProvider";;
+            "PermissionControllerPrebuilt") echo "Permission";;
+            "SdkExtensionsPrebuilt") echo "SdkExtensions";;
+            "StatsdPrebuilt") echo "StatsD";;
+            "TetheringPrebuilt") echo "Connectivity";;
+            "WiFiPrebuilt") echo "Wifi";;
+            *) exit 1;;
+        esac
+    else
+        # Unknown tree type
+        exit 2
+    fi
+    #ConscryptPrebuilt ???
+}
+
+function setup_stub_prebuilts() {
+    destdir=$(get_dest_dir $2)
+
+    make_sdk_library "$1" "$destdir" "$3"
+    #copy_notices "$destdir" "$3"
+}
+
+cd "$SOURCE_TREE/prebuilts/sdk/$API_LEVEL"
+setup_stub_prebuilts android.net.ipsec.ike IKEPrebuilt com.android.ipsec
+setup_stub_prebuilts framework-media MediaFrameworkPrebuilt com.android.media
+setup_stub_prebuilts framework-mediaprovider MediaProviderPrebuilt com.android.mediaprovider
+if [[ "$API_LEVEL" -ge 31 ]]; then
+    setup_stub_prebuilts 'framework-permission framework-permission-s' PermissionControllerPrebuilt com.android.permission
+else
+    setup_stub_prebuilts framework-permission PermissionControllerPrebuilt com.android.permission
+fi
+setup_stub_prebuilts framework-sdkextensions SdkExtensionsPrebuilt com.android.sdkext
+setup_stub_prebuilts framework-statsd StatsdPrebuilt com.android.os.statsd
+setup_stub_prebuilts framework-tethering TetheringPrebuilt com.android.tethering
+setup_stub_prebuilts framework-wifi WiFiPrebuilt com.android.wifi
diff --git a/proto/sdk.proto b/proto/sdk.proto
index 989e8f0..4fddf8d 100644
--- a/proto/sdk.proto
+++ b/proto/sdk.proto
@@ -37,6 +37,7 @@ enum SdkModule {
 
   // S modules
   ART = 8;
+  SCHEDULING = 9;
 }
 
 // A single extension version.
diff --git a/tools/Android.bp b/tools/Android.bp
index 1d552b0..d4b15df 100644
--- a/tools/Android.bp
+++ b/tools/Android.bp
@@ -49,7 +49,7 @@ gensrcs {
     name: "cur_sdkinfo_src",
     srcs: [""],
     tools: [ "gen_sdkinfo" ],
-    cmd: "$(location) -v 0 -o $(out)",
+    cmd: "$(location) -v 1 -o $(out)",
 }
 
 prebuilt_etc {
@@ -64,6 +64,7 @@ prebuilt_etc {
         "//packages/modules/Connectivity:__subpackages__",
         "//packages/modules/IPsec/apex:__subpackages__",
         "//packages/modules/Permission:__subpackages__",
+        "//packages/modules/Scheduling:__subpackages__",
         "//packages/modules/SdkExtensions:__subpackages__",
         "//packages/modules/StatsD:__subpackages__",
         "//packages/providers/MediaProvider:__subpackages__",