diff --git a/backend/src/main/java/com/storycove/StoryCoveApplication.java b/backend/src/main/java/com/storycove/StoryCoveApplication.java
index d991e5e..5bf617c 100644
--- a/backend/src/main/java/com/storycove/StoryCoveApplication.java
+++ b/backend/src/main/java/com/storycove/StoryCoveApplication.java
@@ -2,10 +2,11 @@ package com.storycove;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.security.servlet.UserDetailsServiceAutoConfiguration;
 import org.springframework.scheduling.annotation.EnableAsync;
 import org.springframework.scheduling.annotation.EnableScheduling;
 
-@SpringBootApplication
+@SpringBootApplication(exclude = {UserDetailsServiceAutoConfiguration.class})
 @EnableScheduling
 @EnableAsync
 public class StoryCoveApplication {
diff --git a/backend/src/main/java/com/storycove/config/DatabaseMigrationRunner.java b/backend/src/main/java/com/storycove/config/DatabaseMigrationRunner.java
index 1ec673a..e64cc91 100644
--- a/backend/src/main/java/com/storycove/config/DatabaseMigrationRunner.java
+++ b/backend/src/main/java/com/storycove/config/DatabaseMigrationRunner.java
@@ -1,5 +1,6 @@
 package com.storycove.config;
 
+import com.storycove.service.LibraryService;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -11,7 +12,6 @@ import org.springframework.stereotype.Component;
 import javax.sql.DataSource;
 import java.sql.Connection;
 import java.sql.Statement;
-import java.util.Arrays;
 import java.util.List;
 
 /**
@@ -28,20 +28,15 @@ public class DatabaseMigrationRunner implements CommandLineRunner {
     @Autowired
     private DataSource dataSource;
 
+    @Autowired
+    private LibraryService libraryService;
+
     @Value("${spring.datasource.username}")
     private String dbUsername;
 
     @Value("${spring.datasource.password}")
     private String dbPassword;
 
-    // List of all library databases that need migrations
-    private static final List<String> LIBRARY_DATABASES = Arrays.asList(
-        "storycove",           // default database
-        "storycove_afterdark",
-        "storycove_clas",
-        "storycove_secret"
-    );
-
     // SQL for last_completed_at column migration (idempotent)
     private static final String LAST_COMPLETED_AT_MIGRATION =
         "ALTER TABLE stories ADD COLUMN IF NOT EXISTS last_completed_at TIMESTAMP;";
@@ -78,7 +73,12 @@ public class DatabaseMigrationRunner implements CommandLineRunner {
     public void run(String... args) throws Exception {
         logger.info("🗄️  Starting database migrations...");
 
-        for (String database : LIBRARY_DATABASES) {
+        List<String> databases = libraryService.getAllLibraries().stream()
+                .map(lib -> libraryService.getDbNameForLibrary(lib.getId()))
+                .filter(db -> db != null && !db.isBlank())
+                .collect(java.util.stream.Collectors.toList());
+
+        for (String database : databases) {
             try {
                 applyMigrations(database);
                 logger.info("✅ Successfully applied migrations to database: {}", database);
diff --git a/backend/src/main/java/com/storycove/service/LibraryService.java b/backend/src/main/java/com/storycove/service/LibraryService.java
index 62b4a08..042e0c0 100644
--- a/backend/src/main/java/com/storycove/service/LibraryService.java
+++ b/backend/src/main/java/com/storycove/service/LibraryService.java
@@ -33,12 +33,15 @@ public class LibraryService implements ApplicationContextAware {
     
     @Value("${spring.datasource.url}")
     private String baseDbUrl;
-    
+
     @Value("${spring.datasource.username}")
     private String dbUsername;
-    
+
     @Value("${spring.datasource.password}")
     private String dbPassword;
+
+    @Value("${storycove.auth.password}")
+    private String appPassword;
     
     
     private final ObjectMapper objectMapper = new ObjectMapper();
@@ -252,6 +255,11 @@ public class LibraryService implements ApplicationContextAware {
         return current != null ? current.getImagePath() : "/images/default";
     }
     
+    public String getDbNameForLibrary(String libraryId) {
+        Library library = libraries.get(libraryId);
+        return library != null ? library.getDbName() : null;
+    }
+
     public String getImagePathForLibrary(String libraryId) {
         if (libraryId == null) {
             return "/images/default";
@@ -358,21 +366,17 @@ public class LibraryService implements ApplicationContextAware {
         
         Library defaultLibrary = new Library(
             "main",
-            "Main Library", 
-            "Your existing story collection (migrated)",
-            passwordEncoder.encode("temp-password-change-me"), // Temporary password
-            existingDbName // Use existing database name
+            "Main Library",
+            "Your story collection",
+            passwordEncoder.encode(appPassword),
+            existingDbName
         );
-        defaultLibrary.setInitialized(true); // Mark as initialized since it has existing data
-        
+        defaultLibrary.setInitialized(true);
+
         libraries.put("main", defaultLibrary);
         saveLibrariesToFile();
-        
-        logger.warn("=".repeat(80));
-        logger.warn("MIGRATION: Created 'Main Library' for your existing data");
-        logger.warn("Temporary password: 'temp-password-change-me'");
-        logger.warn("IMPORTANT: Please set a proper password in Settings > Library Settings");
-        logger.warn("=".repeat(80));
+
+        logger.info("Created default library 'Main Library' using APP_PASSWORD");
     }
     
     private String extractDatabaseName(String jdbcUrl) {