diff --git a/Android.bp b/Android.bp
index e358005..ba04bb3 100644
--- a/Android.bp
+++ b/Android.bp
@@ -42,6 +42,24 @@
     ],
 }
 
+// Main Launcher source for compose, excluding the build config
+filegroup {
+    name: "launcher-compose-enabled-src",
+    srcs: [
+        "compose/facade/enabled/*.kt",
+        "compose/facade/core/*.kt",
+        "compose/features/**/*.kt",
+    ],
+}
+
+filegroup {
+    name: "launcher-compose-disabled-src",
+    srcs: [
+        "compose/facade/core/*.kt",
+        "compose/facade/disabled/*.kt",
+    ],
+}
+
 // Source code for quickstep build, on top of launcher-src
 filegroup {
     name: "launcher-quickstep-src",
@@ -51,6 +69,24 @@
     ],
 }
 
+// Source code for quickstep build with compose enabled, on top of launcher-src
+filegroup {
+    name: "launcher-quickstep-compose-enabled-src",
+    srcs: [
+        "quickstep/compose/facade/core/*.kt",
+        "quickstep/compose/facade/enabled/*.kt",
+        "quickstep/compose/features/**/*.kt",
+    ],
+}
+
+filegroup {
+    name: "launcher-quickstep-compose-disabled-src",
+    srcs: [
+        "quickstep/compose/facade/core/*.kt",
+        "quickstep/compose/facade/disabled/*.kt",
+    ],
+}
+
 // Alternate source when quickstep is not included
 filegroup {
     name: "launcher-src_no_quickstep",
@@ -74,6 +110,114 @@
     srcs: ["proguard.flags"],
 }
 
+// Opt-in configuration for Launcher3 code depending on Jetpack Compose.
+soong_config_module_type {
+    name: "launcher_compose_java_defaults",
+    module_type: "java_defaults",
+    config_namespace: "ANDROID",
+    bool_variables: ["release_enable_compose_in_launcher"],
+    properties: [
+        "srcs",
+        "static_libs",
+    ],
+}
+
+// Opt-in configuration for Launcher Quickstep code depending on Jetpack Compose.
+soong_config_bool_variable {
+    name: "release_enable_compose_in_launcher",
+}
+
+soong_config_module_type {
+    name: "quickstep_compose_java_defaults",
+    module_type: "java_defaults",
+    config_namespace: "ANDROID",
+    bool_variables: ["release_enable_compose_in_launcher"],
+    properties: [
+        "srcs",
+        "static_libs",
+    ],
+}
+
+soong_config_module_type {
+    name: "launcher_compose_tests_java_defaults",
+    module_type: "java_defaults",
+    config_namespace: "ANDROID",
+    bool_variables: ["release_enable_compose_in_launcher"],
+    properties: [
+        "static_libs",
+    ],
+}
+
+launcher_compose_java_defaults {
+    name: "launcher_compose_defaults",
+    soong_config_variables: {
+        release_enable_compose_in_launcher: {
+            srcs: [
+                ":launcher-compose-enabled-src"
+            ],
+
+            // Compose dependencies
+            static_libs: [
+                "androidx.compose.runtime_runtime",
+                "androidx.compose.material3_material3",
+            ],
+
+            // By default, Compose is disabled and we compile the ComposeFacade
+            // in compose/launcher3/facade/disabled/.
+            conditions_default: {
+                srcs: [
+                    ":launcher-compose-disabled-src"
+                ],
+                static_libs: [],
+            },
+        },
+    },
+}
+
+quickstep_compose_java_defaults {
+    name: "quickstep_compose_defaults",
+    soong_config_variables: {
+        release_enable_compose_in_launcher: {
+            srcs: [
+                ":launcher-quickstep-compose-enabled-src"
+            ],
+
+            // Compose dependencies
+            static_libs: [
+                "androidx.compose.runtime_runtime",
+                "androidx.compose.material3_material3",
+            ],
+
+            // By default, Compose is disabled and we compile the ComposeFacade
+            // in compose/quickstep/facade/disabled/.
+            conditions_default: {
+                srcs: [
+                    ":launcher-quickstep-compose-disabled-src"
+                ],
+                static_libs: [],
+            },
+        },
+    },
+}
+
+launcher_compose_tests_java_defaults {
+    name: "launcher_compose_tests_defaults",
+    soong_config_variables: {
+        release_enable_compose_in_launcher: {
+            // Compose dependencies
+            static_libs: [
+                "androidx.compose.runtime_runtime",
+                "androidx.compose.ui_ui-test-junit4",
+                "androidx.compose.ui_ui-test-manifest",
+            ],
+
+            conditions_default: {
+                static_libs: [],
+            },
+        },
+    },
+}
+
 android_library {
     name: "launcher-aosp-tapl",
     libs: [
@@ -147,6 +291,9 @@
 // Library with all the dependencies for building Launcher3
 android_library {
     name: "Launcher3ResLib",
+    defaults: [
+        "launcher_compose_defaults",
+    ],
     srcs: [],
     resource_dirs: ["res"],
     static_libs: [
@@ -173,6 +320,7 @@
         "kotlinx_coroutines",
         "com_android_launcher3_flags_lib",
         "com_android_wm_shell_flags_lib",
+
     ],
     manifest: "AndroidManifest-common.xml",
     sdk_version: "current",
@@ -250,6 +398,10 @@
 // Library with all the source code and dependencies for building Launcher Go
 android_library {
     name: "Launcher3GoLib",
+    defaults: [
+        "launcher_compose_defaults",
+        "quickstep_compose_defaults",
+    ],
     srcs: [
         ":launcher-src",
         ":launcher-quickstep-src",
@@ -281,6 +433,10 @@
 // Library with all the source code and dependencies for building Quickstep
 android_library {
     name: "Launcher3QuickStepLib",
+    defaults: [
+        "launcher_compose_defaults",
+        "quickstep_compose_defaults"
+    ],
     srcs: [
         ":launcher-src",
         ":launcher-quickstep-src",
@@ -308,7 +464,6 @@
 // Build rule for Quickstep app.
 android_app {
     name: "Launcher3QuickStep",
-
     static_libs: ["Launcher3QuickStepLib"],
     optimize: {
         proguard_flags_files: [":launcher-proguard-rules"],
@@ -349,7 +504,6 @@
 // eventually be merged into a single target
 android_app {
     name: "Launcher3Go",
-
     static_libs: ["Launcher3GoLib"],
     resource_dirs: [],
 
@@ -386,7 +540,6 @@
 }
 android_app {
     name: "Launcher3QuickStepGo",
-
     static_libs: ["Launcher3GoLib"],
     resource_dirs: [],