diff --git a/init_postgres.sql b/init_postgres.sql
new file mode 100644
index 0000000..841c827
--- /dev/null
+++ b/init_postgres.sql
@@ -0,0 +1,25 @@
+-- Script d'initialisation PostgreSQL pour les annonces
+CREATE TABLE IF NOT EXISTS announcements (
+    id SERIAL PRIMARY KEY,
+    title VARCHAR(255) NOT NULL,
+    content TEXT NOT NULL,
+    priority VARCHAR(20) DEFAULT 'normal' CHECK (priority IN ('normal', 'important', 'urgent')),
+    author_id VARCHAR(255) NOT NULL,
+    group_id INTEGER,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Index pour améliorer les performances
+CREATE INDEX IF NOT EXISTS idx_announcements_priority ON announcements(priority);
+CREATE INDEX IF NOT EXISTS idx_announcements_created_at ON announcements(created_at);
+CREATE INDEX IF NOT EXISTS idx_announcements_group_id ON announcements(group_id);
+
+-- Insertion de données de test
+INSERT INTO announcements (title, content, priority, author_id, group_id) VALUES
+('Bienvenue dans le système d''informations', 'Ce nouveau système remplace l''ancienne carte des commandes clients. Vous pouvez maintenant créer et gérer des annonces importantes.', 'important', 'admin', 1),
+('Maintenance programmée', 'Une maintenance système aura lieu dimanche prochain de 2h à 4h du matin.', 'normal', 'admin', NULL)
+ON CONFLICT DO NOTHING;
+
+-- Afficher le résultat
+SELECT COUNT(*) as total_announcements FROM announcements;
\ No newline at end of file
diff --git a/server/announcementStorage.ts b/server/announcementStorage.ts
index 77cfddd..e3ffd6a 100644
--- a/server/announcementStorage.ts
+++ b/server/announcementStorage.ts
@@ -103,6 +103,7 @@ class AnnouncementMemoryStorage {
     const announcement: Announcement = {
       id,
       ...announcementData,
+      priority: announcementData.priority || 'normal',
       groupId: announcementData.groupId || null,
       createdAt: new Date(),
       updatedAt: new Date(),
@@ -178,27 +179,18 @@ class AnnouncementMemoryStorage {
     
     return deleted;
   }
-
-  // Méthode utilitaire pour obtenir le nombre d'annonces
-  getCount(): number {
-    return this.announcements.size;
-  }
-
-  // Méthode utilitaire pour nettoyer toutes les annonces (si nécessaire)
-  clear(): void {
-    this.announcements.clear();
-    this.idCounter = 1;
-    console.log('🧹 Toutes les annonces ont été supprimées');
-  }
 }
 
-// Instance singleton pour partager entre production et développement
-let announcementStorage: AnnouncementMemoryStorage | null = null;
+// Instance globale partagée
+let globalAnnouncementStorage: AnnouncementMemoryStorage | null = null;
 
-export function getAnnouncementStorage(usersGetter: () => Promise<User[]>, groupsGetter: () => Promise<Group[]>): AnnouncementMemoryStorage {
-  if (!announcementStorage) {
-    announcementStorage = new AnnouncementMemoryStorage(usersGetter, groupsGetter);
-    console.log('📢 Système d\'annonces en mémoire initialisé (max 5 annonces)');
+export function getAnnouncementStorage(
+  usersGetter: () => Promise<User[]>,
+  groupsGetter: () => Promise<Group[]>
+): AnnouncementMemoryStorage {
+  if (!globalAnnouncementStorage) {
+    globalAnnouncementStorage = new AnnouncementMemoryStorage(usersGetter, groupsGetter);
+    console.log('📢 Stockage mémoire des annonces initialisé');
   }
-  return announcementStorage;
+  return globalAnnouncementStorage;
 }
\ No newline at end of file
diff --git a/server/db.ts b/server/db.ts
index 8a1c88d..aa22022 100644
--- a/server/db.ts
+++ b/server/db.ts
@@ -14,15 +14,15 @@ console.log('🔗 Database initialization:', {
 let db: any;
 let pool: any;
 
-if (isProduction && dbUrl && (dbUrl.includes('logiflow-db') || dbUrl.includes('localhost') || dbUrl.includes('127.0.0.1'))) {
-  // Standard PostgreSQL for production Docker
-  console.log('🐳 PRODUCTION: Using standard PostgreSQL');
+if (dbUrl && (isProduction || process.env.FORCE_POSTGRES === 'true')) {
+  // Use PostgreSQL for production or when forced
+  console.log('🐘 Using PostgreSQL database');
   const { Pool } = await import('pg');
   const { drizzle } = await import('drizzle-orm/node-postgres');
   
   pool = new Pool({ 
     connectionString: dbUrl,
-    ssl: false,
+    ssl: dbUrl.includes('localhost') ? false : { rejectUnauthorized: false },
     max: 10,
     idleTimeoutMillis: 30000,
     connectionTimeoutMillis: 5000,
@@ -38,25 +38,15 @@ if (isProduction && dbUrl && (dbUrl.includes('logiflow-db') || dbUrl.includes('l
     });
   } catch (error) {
     console.error('❌ PostgreSQL connection test failed:', error);
-  }
-} else {
-  // Fallback: use Neon for development (but will be overridden by MemStorage)
-  console.log('🔧 DEV: Using Neon (fallback, will use MemStorage)');
-  const { Pool, neonConfig } = await import('@neondatabase/serverless');
-  const { drizzle } = await import('drizzle-orm/neon-serverless');
-  const ws = await import('ws');
-  
-  neonConfig.webSocketConstructor = ws.default;
-  
-  if (dbUrl) {
-    pool = new Pool({ connectionString: dbUrl });
-    db = drizzle({ client: pool, schema });
-  } else {
-    // Create dummy instances for development
+    // Continue anyway, will use MemStorage as fallback
     pool = null;
     db = null;
-    console.log('🔧 DEV: No DATABASE_URL, using MemStorage');
   }
+} else {
+  // Development fallback: use MemStorage
+  console.log('🔧 DEV: Using MemStorage (development fallback)');
+  pool = null;
+  db = null;
 }
 
 export { db, pool };
\ No newline at end of file
diff --git a/server/storage.ts b/server/storage.ts
index e417c42..a700116 100644
--- a/server/storage.ts
+++ b/server/storage.ts
@@ -68,6 +68,7 @@ import {
 } from "@shared/schema";
 import { db } from "./db";
 import { eq, and, inArray, desc, sql, gte, lte, lt, or, isNull, isNotNull, asc } from "drizzle-orm";
+import { getAnnouncementStorage } from "./announcementStorage";
 
 
 export interface IStorage {