diff --git a/bindings/matrix-sdk-ffi/src/client.rs b/bindings/matrix-sdk-ffi/src/client.rs
index b5913a7a1..b47b91514 100644
--- a/bindings/matrix-sdk-ffi/src/client.rs
+++ b/bindings/matrix-sdk-ffi/src/client.rs
@@ -32,6 +32,7 @@ use matrix_sdk::{
     },
     AuthApi, AuthSession, Client as MatrixClient, SessionChange,
 };
+use matrix_sdk_ui::notification_client::NotificationProcessSetup as MatrixNotificationProcessSetup;
 use ruma::{
     api::client::discovery::discover_homeserver::AuthenticationServerInfo,
     push::{HttpPusherData as RumaHttpPusherData, PushFormat as RumaPushFormat},
@@ -44,8 +45,11 @@ use url::Url;
 
 use super::{room::Room, session_verification::SessionVerificationController, RUNTIME};
 use crate::{
-    client, notification::NotificationClientBuilder, notification_settings::NotificationSettings,
-    sync_service::SyncServiceBuilder, ClientError,
+    client,
+    notification::NotificationClientBuilder,
+    notification_settings::NotificationSettings,
+    sync_service::{SyncService, SyncServiceBuilder},
+    ClientError,
 };
 
 #[derive(Clone, uniffi::Record)]
@@ -710,8 +714,11 @@ impl Client {
         })
     }
 
-    pub fn notification_client(&self) -> Result<Arc<NotificationClientBuilder>, ClientError> {
-        NotificationClientBuilder::new(self.inner.clone())
+    pub fn notification_client(
+        &self,
+        process_setup: NotificationProcessSetup,
+    ) -> Result<Arc<NotificationClientBuilder>, ClientError> {
+        NotificationClientBuilder::new(self.inner.clone(), process_setup.into())
     }
 
     pub fn sync_service(&self) -> Arc<SyncServiceBuilder> {
@@ -728,6 +735,27 @@ impl Client {
     }
 }
 
+#[derive(uniffi::Enum)]
+pub enum NotificationProcessSetup {
+    MultipleProcesses,
+    SingleProcess { sync_service: Arc<SyncService> },
+}
+
+impl From<NotificationProcessSetup> for MatrixNotificationProcessSetup {
+    fn from(value: NotificationProcessSetup) -> Self {
+        match value {
+            NotificationProcessSetup::MultipleProcesses => {
+                MatrixNotificationProcessSetup::MultipleProcesses
+            }
+            NotificationProcessSetup::SingleProcess { sync_service } => {
+                MatrixNotificationProcessSetup::SingleProcess {
+                    sync_service: sync_service.inner.clone(),
+                }
+            }
+        }
+    }
+}
+
 #[derive(uniffi::Record)]
 pub struct SearchUsersResults {
     pub results: Vec<UserProfile>,
diff --git a/bindings/matrix-sdk-ffi/src/notification.rs b/bindings/matrix-sdk-ffi/src/notification.rs
index 79f6e1bf4..95e27063d 100644
--- a/bindings/matrix-sdk-ffi/src/notification.rs
+++ b/bindings/matrix-sdk-ffi/src/notification.rs
@@ -3,7 +3,7 @@ use std::sync::Arc;
 use matrix_sdk_ui::notification_client::{
     NotificationClient as MatrixNotificationClient,
     NotificationClientBuilder as MatrixNotificationClientBuilder,
-    NotificationItem as MatrixNotificationItem,
+    NotificationItem as MatrixNotificationItem, NotificationProcessSetup,
 };
 use ruma::{EventId, RoomId};
 
@@ -80,9 +80,12 @@ pub struct NotificationClientBuilder {
 }
 
 impl NotificationClientBuilder {
-    pub(crate) fn new(client: matrix_sdk::Client) -> Result<Arc<Self>, ClientError> {
-        let builder =
-            RUNTIME.block_on(async { MatrixNotificationClient::builder(client).await })?;
+    pub(crate) fn new(
+        client: matrix_sdk::Client,
+        process_setup: NotificationProcessSetup,
+    ) -> Result<Arc<Self>, ClientError> {
+        let builder = RUNTIME
+            .block_on(async { MatrixNotificationClient::builder(client, process_setup).await })?;
         Ok(Arc::new(Self { builder }))
     }
 }
@@ -99,14 +102,9 @@ impl NotificationClientBuilder {
 
     /// Automatically retry decryption once, if the notification was received
     /// encrypted.
-    ///
-    /// The boolean indicates whether we're making use of a cross-process lock
-    /// for the crypto-store. This should be set to true, if and only if,
-    /// the notification is received in a process that's different from the
-    /// main app.
-    pub fn retry_decryption(self: Arc<Self>, with_cross_process_lock: bool) -> Arc<Self> {
+    pub fn retry_decryption(self: Arc<Self>) -> Arc<Self> {
         let this = unwrap_or_clone_arc(self);
-        let builder = this.builder.retry_decryption(with_cross_process_lock);
+        let builder = this.builder.retry_decryption();
         Arc::new(Self { builder })
     }
 
diff --git a/bindings/matrix-sdk-ffi/src/sync_service.rs b/bindings/matrix-sdk-ffi/src/sync_service.rs
index ef6897293..05d818f23 100644
--- a/bindings/matrix-sdk-ffi/src/sync_service.rs
+++ b/bindings/matrix-sdk-ffi/src/sync_service.rs
@@ -52,7 +52,7 @@ pub trait SyncServiceStateObserver: Send + Sync + Debug {
 
 #[derive(uniffi::Object)]
 pub struct SyncService {
-    inner: MatrixSyncService,
+    pub(crate) inner: Arc<MatrixSyncService>,
 }
 
 #[uniffi::export(async_runtime = "tokio")]
@@ -107,6 +107,6 @@ impl SyncServiceBuilder {
 
     pub async fn finish(self: Arc<Self>) -> Result<Arc<SyncService>, ClientError> {
         let this = unwrap_or_clone_arc(self);
-        Ok(Arc::new(SyncService { inner: this.builder.build().await? }))
+        Ok(Arc::new(SyncService { inner: Arc::new(this.builder.build().await?) }))
     }
 }