diff --git a/components/Blueprints/SiteResolver/class-newsiteresolver.php b/components/Blueprints/SiteResolver/class-newsiteresolver.php
index 4ace812aa..7b2ce2b05 100644
--- a/components/Blueprints/SiteResolver/class-newsiteresolver.php
+++ b/components/Blueprints/SiteResolver/class-newsiteresolver.php
@@ -7,6 +7,7 @@
 use WordPress\Blueprints\Exception\BlueprintExecutionException;
 use WordPress\Blueprints\Progress\Tracker;
 use WordPress\Blueprints\Runtime;
+use WordPress\Blueprints\Steps\DefineConstantsStep;
 use WordPress\Blueprints\VersionStrings\VersionConstraint;
 use WordPress\HttpClient\Client;
 use WordPress\HttpClient\Request;
@@ -71,10 +72,6 @@ public static function resolve( Runtime $runtime, Tracker $progress, ?VersionCon
 
 		// If SQLite integration zip provided, unzip into appropriate folder.
 		if ( 'sqlite' === $runtime->get_configuration()->get_database_engine() ) {
-			/*
-			 * @TODO: Ensure DB_NAME gets defined in wp-config.php before installing the SQLite plugin.
-			 */
-
 			$progress['resolve_assets']->setCaption( 'Downloading SQLite integration plugin' );
 			$resolved = $runtime->resolve( $assets['sqlite-integration'] );
 			if ( ! $resolved instanceof File ) {
@@ -116,6 +113,13 @@ public static function resolve( Runtime $runtime, Tracker $progress, ?VersionCon
 				}
 			}
 
+			// Database configuration constants must be available when core installation opens its connection.
+			$blueprint = $runtime->get_blueprint();
+			if ( ! empty( $blueprint['constants'] ) && is_array( $blueprint['constants'] ) ) {
+				$define_constants_step = new DefineConstantsStep( $blueprint['constants'] );
+				$define_constants_step->run( $runtime, $progress['install_wordpress'] );
+			}
+
 			// Perform installation using WP-CLI.
 			// @TODO (low priority): Remove the WP-CLI dependency to lower the download size for blueprints.phar.
 			$progress['install_wordpress']->set( 0.7, 'Installing WordPress' );
diff --git a/components/Blueprints/Tests/Unit/Steps/DefineConstantsStepTest.php b/components/Blueprints/Tests/Unit/Steps/DefineConstantsStepTest.php
index b61d36ce7..b22cc4686 100644
--- a/components/Blueprints/Tests/Unit/Steps/DefineConstantsStepTest.php
+++ b/components/Blueprints/Tests/Unit/Steps/DefineConstantsStepTest.php
@@ -60,6 +60,9 @@ public function testAddNewConstantsToWpConfigWithEditingComment() {
 <?php
 
 $table_prefix = 'wp_';
+define( 'DB_NAME', 'database_name_here' );
+define( 'SQLITE_JOURNAL_MODE', 'DELETE' );
+define( 'WP_SQLITE_UNSAFE_ENABLE_UNSUPPORTED_VERSIONS', true );
 define( 'WP_DEBUG', true );
 
 /* That's all, stop editing! */
@@ -81,6 +84,9 @@ public function testAddNewConstantsToWpConfigWithEditingComment() {
 <?php
 
 $table_prefix = 'wp_';
+define( 'DB_NAME', 'database_name_here' );
+define( 'SQLITE_JOURNAL_MODE', 'DELETE' );
+define( 'WP_SQLITE_UNSAFE_ENABLE_UNSUPPORTED_VERSIONS', true );
 define( 'WP_DEBUG', true );
 
 
@@ -104,6 +110,9 @@ public function testAddNewConstantsToWpConfigWithSetupWpSettingsComment() {
 <?php
 
 $table_prefix = 'wp_';
+define( 'DB_NAME', 'database_name_here' );
+define( 'SQLITE_JOURNAL_MODE', 'DELETE' );
+define( 'WP_SQLITE_UNSAFE_ENABLE_UNSUPPORTED_VERSIONS', true );
 define( 'WP_DEBUG', true );
 
 /** Sets up WordPress vars and included files. */
@@ -123,6 +132,9 @@ public function testAddNewConstantsToWpConfigWithSetupWpSettingsComment() {
 <?php
 
 $table_prefix = 'wp_';
+define( 'DB_NAME', 'database_name_here' );
+define( 'SQLITE_JOURNAL_MODE', 'DELETE' );
+define( 'WP_SQLITE_UNSAFE_ENABLE_UNSUPPORTED_VERSIONS', true );
 define( 'WP_DEBUG', true );
 
 
@@ -143,6 +155,9 @@ public function testAddNewConstantsToWpConfigWithRequireWpSettings() {
 			<<<'PHP'
 <?php
 $table_prefix = 'wp_';
+define( 'DB_NAME', 'database_name_here' );
+define( 'SQLITE_JOURNAL_MODE', 'DELETE' );
+define( 'WP_SQLITE_UNSAFE_ENABLE_UNSUPPORTED_VERSIONS', true );
 define( 'WP_DEBUG', true );
 require_once ABSPATH . 'wp-settings.php';
 PHP
@@ -159,6 +174,9 @@ public function testAddNewConstantsToWpConfigWithRequireWpSettings() {
 			<<<'PHP'
 <?php
 $table_prefix = 'wp_';
+define( 'DB_NAME', 'database_name_here' );
+define( 'SQLITE_JOURNAL_MODE', 'DELETE' );
+define( 'WP_SQLITE_UNSAFE_ENABLE_UNSUPPORTED_VERSIONS', true );
 define( 'WP_DEBUG', true );
 
 define( 'WP_MEMORY_LIMIT', '256M' );
diff --git a/components/Blueprints/Tests/Unit/Steps/RunSQLStepTest.php b/components/Blueprints/Tests/Unit/Steps/RunSQLStepTest.php
index bf346e1ac..682df4760 100644
--- a/components/Blueprints/Tests/Unit/Steps/RunSQLStepTest.php
+++ b/components/Blueprints/Tests/Unit/Steps/RunSQLStepTest.php
@@ -146,7 +146,7 @@ public function testRunMultipleSQLStatements() {
 	 * Test handling SQL errors
 	 */
 	public function testHandleSQLErrors() {
-		$sql = "CREATE TABLE test_table (id INT PRIMARY KEY); INSERT INTO nonexistent_table VALUES (1);";
+		$sql = "CREATE TABLE test_table (id INT PRIMARY KEY);\nINSERT INTO nonexistent_table VALUES (1);";
 		$this->execution_context->put_contents( 'test.sql', $sql );
 
 		$step = new RunSqlStep( DataReference::create( './test.sql', [
diff --git a/components/Blueprints/Tests/Unit/Steps/StepTestCase.php b/components/Blueprints/Tests/Unit/Steps/StepTestCase.php
index 9875880b2..a9d7ed97b 100644
--- a/components/Blueprints/Tests/Unit/Steps/StepTestCase.php
+++ b/components/Blueprints/Tests/Unit/Steps/StepTestCase.php
@@ -4,7 +4,6 @@
 
 use PHPUnit\Framework\TestCase;
 use WordPress\Blueprints\DataReference\AbsoluteLocalPath;
-use WordPress\Blueprints\DataReference\DataReference;
 use WordPress\Blueprints\Runner;
 use WordPress\Blueprints\RunnerConfiguration;
 use WordPress\Blueprints\Runtime;
@@ -65,7 +64,13 @@ public function setUp(): void {
 			;
 		}
 
-		$blueprint = array( 'version' => 2 );
+		$blueprint = array(
+			'version'   => 2,
+			'constants' => array(
+				'SQLITE_JOURNAL_MODE'                           => 'DELETE',
+				'WP_SQLITE_UNSAFE_ENABLE_UNSUPPORTED_VERSIONS' => true,
+			),
+		);
 		if ( PHP_VERSION_ID < 70400 ) {
 			$blueprint['wordpressVersion'] = '6.6.2';
 		}
@@ -78,9 +83,6 @@ public function setUp(): void {
 		$config
 			->set_blueprint( new AbsoluteLocalPath( wp_join_unix_paths( $this->execution_context_path, 'blueprint.json' ) ) )
 			->set_database_engine( 'sqlite' )
-			->set_sqlite_integration_plugin(
-				DataReference::create( 'https://downloads.wordpress.org/plugin/sqlite-database-integration.2.2.23.zip' )
-			)
 			->set_target_site_url( 'http://127.0.0.1:2456' );
 
 		$runner = new Runner( $config );