diff --git a/src/wp-includes/block-editor.php b/src/wp-includes/block-editor.php
index e04b012e7dd08..6441b59c91300 100644
--- a/src/wp-includes/block-editor.php
+++ b/src/wp-includes/block-editor.php
@@ -766,6 +766,15 @@ function block_editor_rest_api_preload( array $preload_paths, $block_editor_cont
 		),
 		'after'
 	);
+	add_filter(
+		'scriptmoduleconfig_@wordpress/api-fetch',
+		function ( $data ) use ( $preload_data ) {
+			return array_merge(
+				$data,
+				array( 'preloadData' => $preload_data )
+			);
+		}
+	);
 }
 
 /**
diff --git a/src/wp-includes/class-wp-script-modules.php b/src/wp-includes/class-wp-script-modules.php
index 46945ea89523c..a340bd60ac098 100644
--- a/src/wp-includes/class-wp-script-modules.php
+++ b/src/wp-includes/class-wp-script-modules.php
@@ -178,6 +178,8 @@ public function add_hooks() {
 		add_action( $position, array( $this, 'print_import_map' ) );
 		add_action( $position, array( $this, 'print_enqueued_script_modules' ) );
 		add_action( $position, array( $this, 'print_script_module_preloads' ) );
+
+		add_action( 'wp_footer', array( $this, 'print_script_data' ) );
 	}
 
 	/**
@@ -359,4 +361,27 @@ private function get_src( string $id ): string {
 
 		return $src;
 	}
+
+	public function print_script_data(): void {
+		$modules = array();
+		foreach ( array_keys( $this->get_marked_for_enqueue() ) as $id ) {
+			$modules[ $id ] = true;
+		}
+		foreach ( array_keys( $this->get_import_map()['imports'] ) as $id ) {
+			$modules[ $id ] = true;
+		}
+
+		foreach ( array_keys( $modules ) as $module_id ) {
+			$config = apply_filters( 'scriptmoduledata_' . $module_id, array() );
+			if ( ! empty( $config ) ) {
+				wp_print_inline_script_tag(
+					wp_json_encode( $config, JSON_HEX_TAG | JSON_HEX_AMP ),
+					array(
+						'type' => 'application/json',
+						'id'   => 'wp-config-data_' . $module_id,
+					)
+				);
+			}
+		}
+	}
 }
diff --git a/src/wp-includes/script-loader.php b/src/wp-includes/script-loader.php
index b256ff72e50c0..d98b0e4d2d1c2 100644
--- a/src/wp-includes/script-loader.php
+++ b/src/wp-includes/script-loader.php
@@ -508,43 +508,6 @@ function wp_default_packages_inline_scripts( $scripts ) {
 	);
 }
 
-/**
- * Adds script configuration data WordPress JavaScript packages may read.
- *
- * @since 6.6.0
- */
-function wp_default_packages_print_script_configuration_data(  ) {
-	$scripts = wp_scripts();
-
-	// echo '<plaintext>';
-	// var_dump(
-// $scripts->query( 'wp-api-fetch', 'enqueued' ),
-// $scripts->query( 'wp-api-fetch', 'done' ),
-	// );
-	// die();
-
-	if (
-		$scripts->query( 'wp-api-fetch', 'enqueued' ) ||
-		$scripts->query( 'wp-api-fetch', 'done' )
-	) {
-		wp_print_inline_script_tag(
-			wp_json_encode(
-				array(
-					'rootURL'                             => sanitize_url( get_rest_url() ),
-					'nonce'                               => wp_installing() ? '' : wp_create_nonce( 'wp_rest' ),
-					'shouldRegisterMediaUploadMiddleware' => true,
-					'nonceEndpoint'                       => admin_url( 'admin-ajax.php?action=rest-nonce' ),
-				),
-				JSON_HEX_TAG | JSON_HEX_AMP
-			),
-			array(
-				'type' => 'application/json',
-				'id'   => 'wp-apifetch-config-data',
-			)
-		);
-	}
-}
-
 /**
  * Adds inline scripts required for the TinyMCE in the block editor.
  *
@@ -707,8 +670,6 @@ function wp_default_packages( $scripts ) {
 	if ( did_action( 'init' ) ) {
 		wp_default_packages_inline_scripts( $scripts );
 	}
-
-	add_action( 'wp_footer', 'wp_default_packages_print_script_configuration_data' );
 }
 
 /**
diff --git a/src/wp-includes/script-modules.php b/src/wp-includes/script-modules.php
index 7ff80df5bfdb1..bde277bf0a11f 100644
--- a/src/wp-includes/script-modules.php
+++ b/src/wp-includes/script-modules.php
@@ -123,3 +123,22 @@ function wp_dequeue_script_module( string $id ) {
 function wp_deregister_script_module( string $id ) {
 	wp_script_modules()->deregister( $id );
 }
+
+
+function wp_register_default_script_modules(): void {
+	add_filter(
+		'scriptmoduleconfig_@wordpress/api-fetch',
+		function ( $data ) {
+			return array_merge(
+				$data,
+				array(
+					'rootURL'                             => sanitize_url( get_rest_url() ),
+					'nonce'                               => wp_installing() ? '' : wp_create_nonce( 'wp_rest' ),
+					'shouldRegisterMediaUploadMiddleware' => true,
+					'nonceEndpoint'                       => admin_url( 'admin-ajax.php?action=rest-nonce' ),
+				)
+			);
+		}
+	);
+}
+add_action( 'init', 'wp_register_default_script_modules', 0 );
diff --git a/src/wp-includes/theme-previews.php b/src/wp-includes/theme-previews.php
index 7e0c085b1c102..6a5a292dd0441 100644
--- a/src/wp-includes/theme-previews.php
+++ b/src/wp-includes/theme-previews.php
@@ -53,6 +53,18 @@ function wp_attach_theme_preview_middleware() {
 		),
 		'after'
 	);
+
+	add_filter(
+		'scriptmoduleconfig_@wordpress/api-fetch',
+		function ( $data ) {
+			return array_merge(
+				$data,
+				array(
+					'themePreviewPath' => sanitize_text_field( wp_unslash( $_GET['wp_theme_preview'] ) ),
+				)
+			);
+		}
+	);
 }
 
 /**