diff --git a/README.md b/README.md
index 28147cd..7949371 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Plateforme de publication d'articles scientifiques et de science-fiction avec sy
 
 ## Features
 
-- **NostrConnect Integration**: Authenticate using NostrConnect (default: use.nsec.app)
+- **Nostr Wallet Integration**: Authenticate using nos2x extension (NIP-07) or NostrConnect bridge (NIP-46)
 - **Free Previews**: Public notes showing article previews
 - **Paid Content**: Private notes containing full content, unlocked after 800 sats zap
 - **Lightning Payments**: Integrated Alby/WebLN for Lightning payments (works with Alby and other Lightning wallets)
@@ -28,7 +28,7 @@ npm run dev
 ## Environment Variables
 
 - `NEXT_PUBLIC_NOSTR_RELAY_URL`: Nostr relay URL (default: wss://relay.damus.io)
-- `NEXT_PUBLIC_NOSTRCONNECT_BRIDGE`: NostrConnect bridge URL (default: https://use.nsec.app)
+- `NEXT_PUBLIC_NOSTRCONNECT_BRIDGE`: NostrConnect bridge URL (optional, nos2x extension is used by default)
 
 ## Lightning Wallet Setup
 
diff --git a/docs/faq.md b/docs/faq.md
index 90342e2..3c4a1df 100644
--- a/docs/faq.md
+++ b/docs/faq.md
@@ -38,7 +38,7 @@ Le sponsoring permet de soutenir directement un auteur avec **0.046 BTC** :
 
 ### Comment me connecter ?
 
-Cliquez sur "Connect with Nostr" et autorisez la connexion avec votre portefeuille Nostr. L'application utilise NostrConnect (par défaut via `use.nsec.app`).
+Cliquez sur "Connect with Nostr" et autorisez la connexion avec votre portefeuille Nostr. L'application utilise l'extension nos2x (NIP-07) par défaut, ou un pont NostrConnect (NIP-46) si configuré.
 
 ### J'ai besoin d'un compte ?
 
diff --git a/docs/rizful-api-setup.md b/docs/rizful-api-setup.md
index a90f300..88a287b 100644
--- a/docs/rizful-api-setup.md
+++ b/docs/rizful-api-setup.md
@@ -57,7 +57,7 @@ RIZFUL_API_URL=https://api.rizful.com
 
 # Variables publiques (client-side)
 NEXT_PUBLIC_NOSTR_RELAY_URL=wss://relay.damus.io
-NEXT_PUBLIC_NOSTRCONNECT_BRIDGE=https://use.nsec.app
+NEXT_PUBLIC_NOSTRCONNECT_BRIDGE=  # Optional: nos2x extension is used by default
 ```
 
 **⚠️ Important** :
diff --git a/docs/user-guide.md b/docs/user-guide.md
index b1fd3ef..15b12a1 100644
--- a/docs/user-guide.md
+++ b/docs/user-guide.md
@@ -62,7 +62,7 @@ Pour effectuer des paiements Lightning, vous devez installer une extension de po
 
 1. Cliquez sur le bouton **"Connect with Nostr"** en haut à droite
 2. Une fenêtre s'ouvrira pour vous connecter avec votre portefeuille Nostr
-3. Par défaut, l'application utilise `use.nsec.app` comme pont NostrConnect
+3. Par défaut, l'application utilise l'extension nos2x (NIP-07). Un pont NostrConnect (NIP-46) peut être configuré via la variable d'environnement `NEXT_PUBLIC_NOSTRCONNECT_BRIDGE`
 4. Autorisez la connexion dans votre portefeuille Nostr
 
 ### Que se passe-t-il après la connexion ?
diff --git a/features/features.md b/features/features.md
index 03873a8..698124c 100644
--- a/features/features.md
+++ b/features/features.md
@@ -7,7 +7,7 @@
 ### Nostr Paywall → zapwall4Science
 - Publication d'articles avec aperçus gratuits et contenu payant
 - Paiement Lightning via Alby/WebLN (remplacement de Rizful)
-- Connexion via NostrConnect (use.nsec.app)
+- Connexion via nos2x extension (NIP-07) ou NostrConnect bridge (NIP-46)
 - Interface TypeScript/Next.js
 
 ### Services principaux
diff --git a/lib/nostrRemoteSigner.ts b/lib/nostrRemoteSigner.ts
index 3447471..0dd9239 100644
--- a/lib/nostrRemoteSigner.ts
+++ b/lib/nostrRemoteSigner.ts
@@ -4,15 +4,15 @@ import { nostrConnectService } from './nostrconnect'
 import { nostrService } from './nostr'
 
 /**
- * Remote signer using NostrConnect
- * Supports both direct signing (if private key available) and remote signing via bridge
+ * Remote signer using nos2x (NIP-07) or NostrConnect (NIP-46)
+ * Supports nos2x extension (window.nostr) and NostrConnect bridge
  */
 export class NostrRemoteSigner {
   /**
    * Sign an event template
-   * Requires private key to be available
+   * Uses nos2x (NIP-07) if available, otherwise falls back to private key signing
    */
-  signEvent(eventTemplate: EventTemplate): Event | null {
+  async signEvent(eventTemplate: EventTemplate): Promise<Event | null> {
     // Get the event hash first
     const pubkey = nostrService.getPublicKey()
     if (!pubkey) {
@@ -26,14 +26,28 @@ export class NostrRemoteSigner {
     }
     const eventId = getEventHash(unsignedEvent)
 
-    // Try to get private key from nostrService (if available from NostrConnect)
-    const privateKey = nostrService.getPrivateKey()
+    // Try nos2x (NIP-07) first
+    if (typeof window !== 'undefined' && window.nostr) {
+      try {
+        const signedEvent = await window.nostr.signEvent({
+          kind: unsignedEvent.kind,
+          created_at: unsignedEvent.created_at,
+          tags: unsignedEvent.tags,
+          content: unsignedEvent.content,
+        })
+        return signedEvent as Event
+      } catch (e) {
+        console.error('Error signing with nos2x:', e)
+        throw new Error('Failed to sign event with nos2x extension')
+      }
+    }
 
+    // Fallback to private key signing
+    const privateKey = nostrService.getPrivateKey()
     if (!privateKey) {
       throw new Error(
         'Private key required for signing. ' +
-        'Please use a NostrConnect wallet that provides signing capabilities, ' +
-        'or ensure your wallet is properly connected.'
+        'Please install nos2x extension or use a NostrConnect wallet that provides signing capabilities.'
       )
     }
 
diff --git a/lib/nostrconnect.ts b/lib/nostrconnect.ts
index c1ed1ec..4830c55 100644
--- a/lib/nostrconnect.ts
+++ b/lib/nostrconnect.ts
@@ -2,9 +2,10 @@ import type { NostrConnectState } from '@/types/nostr'
 import { nostrService } from './nostr'
 import { handleNostrConnectMessage } from './nostrconnectHandler'
 
-// NostrConnect uses NIP-46 protocol
-// use.nsec.app provides a bridge for remote signing
-const NOSTRCONNECT_BRIDGE = process.env.NEXT_PUBLIC_NOSTRCONNECT_BRIDGE ?? 'https://use.nsec.app'
+// Support for nos2x extension (NIP-07) and NostrConnect (NIP-46)
+// nos2x uses window.nostr API directly
+// NostrConnect uses a bridge for remote signing
+const NOSTRCONNECT_BRIDGE = process.env.NEXT_PUBLIC_NOSTRCONNECT_BRIDGE ?? ''
 
 export class NostrConnectService {
   private state: NostrConnectState = {
@@ -36,6 +37,9 @@ export class NostrConnectService {
   }
 
   private createConnectUrl(): string {
+    if (!NOSTRCONNECT_BRIDGE) {
+      throw new Error('NostrConnect bridge not configured')
+    }
     const appName = 'zapwall4Science'
     const appUrl = window.location.origin
 
diff --git a/lib/nostrconnectMessageHandler.ts b/lib/nostrconnectMessageHandler.ts
index 92af5e7..a8e7769 100644
--- a/lib/nostrconnectMessageHandler.ts
+++ b/lib/nostrconnectMessageHandler.ts
@@ -1,7 +1,7 @@
 import type { NostrConnectState } from '@/types/nostr'
 import { nostrService } from './nostr'
 
-const NOSTRCONNECT_BRIDGE = process.env.NEXT_PUBLIC_NOSTRCONNECT_BRIDGE ?? 'https://use.nsec.app'
+const NOSTRCONNECT_BRIDGE = process.env.NEXT_PUBLIC_NOSTRCONNECT_BRIDGE ?? ''
 
 interface MessageData {
   type?: string
diff --git a/next.config.js b/next.config.js
index 1fa66c2..87b3e2d 100644
--- a/next.config.js
+++ b/next.config.js
@@ -3,7 +3,7 @@ const nextConfig = {
   reactStrictMode: true,
   env: {
     NOSTR_RELAY_URL: process.env.NEXT_PUBLIC_NOSTR_RELAY_URL || 'wss://relay.damus.io',
-    NOSTRCONNECT_BRIDGE: process.env.NEXT_PUBLIC_NOSTRCONNECT_BRIDGE || 'https://use.nsec.app',
+    NOSTRCONNECT_BRIDGE: process.env.NEXT_PUBLIC_NOSTRCONNECT_BRIDGE || '',
   },
 }
 
diff --git a/pages/_app.tsx b/pages/_app.tsx
index 6d53573..1e6546e 100644
--- a/pages/_app.tsx
+++ b/pages/_app.tsx
@@ -1,7 +1,6 @@
 import '@/styles/globals.css'
 import type { AppProps } from 'next/app'
 import { useI18n } from '@/hooks/useI18n'
-import { getLocale } from '@/lib/i18n'
 
 function I18nProvider({ children }: { children: React.ReactNode }) {
   // Get saved locale from localStorage or default to French
diff --git a/types/nostr-window.d.ts b/types/nostr-window.d.ts
new file mode 100644
index 0000000..53613ae
--- /dev/null
+++ b/types/nostr-window.d.ts
@@ -0,0 +1,30 @@
+// Type definitions for NIP-07 (nos2x extension)
+declare global {
+  interface Window {
+    nostr?: {
+      getPublicKey(): Promise<string>
+      signEvent(event: {
+        kind: number
+        created_at: number
+        tags: string[][]
+        content: string
+      }): Promise<{
+        id: string
+        sig: string
+        kind: number
+        created_at: number
+        tags: string[][]
+        content: string
+        pubkey: string
+      }>
+      getRelays?(): Promise<Record<string, { read: boolean; write: boolean }>>
+      nip04?: {
+        encrypt(pubkey: string, plaintext: string): Promise<string>
+        decrypt(pubkey: string, ciphertext: string): Promise<string>
+      }
+    }
+  }
+}
+
+export {}
+