diff --git a/src/cristallina/channels.py b/src/cristallina/channels.py
index bae3242..413cd1e 100644
--- a/src/cristallina/channels.py
+++ b/src/cristallina/channels.py
@@ -20,4 +20,7 @@ PSSS_COM = 'SARFE10-PSSS059:SPECT-COM'
 # Beam position monitors
 PBPS149_intensity = "SAROP31-PBPS149:INTENSITY_UJ"
 PBPS113_intensity = "SAROP31-PBPS113:INTENSITY_UJ"
-PBPS053_intensity = "SARFE10-PBPS053:INTENSITY"
\ No newline at end of file
+PBPS053_intensity = "SARFE10-PBPS053:INTENSITY"
+
+# X-ray eye
+XEYE = "SARES30-CAMS156-XE:FPICTURE"
diff --git a/src/cristallina/jupyter_helper.py b/src/cristallina/jupyter_helper.py
index cf70615..83d8b32 100644
--- a/src/cristallina/jupyter_helper.py
+++ b/src/cristallina/jupyter_helper.py
@@ -19,10 +19,12 @@ import jupyter_collaboration
 
 if Version(jupyter_collaboration.__version__) < Version("1.9"):
     from ypy_websocket.ystore import SQLiteYStore
-   
-else:   
-    # approach for >=2.0
+elif Version(jupyter_collaboration.__version__) >= Version("2.0") and Version(jupyter_collaboration.__version__) < Version("3.0a1"):   
+    # approach for >=2.0 but smaller than 3.0
     from jupyter_collaboration.stores import SQLiteYStore
+elif Version(jupyter_collaboration.__version__) >= Version("3.0a1"):   
+    # approach for >=3.0
+    from jupyter_server_ydoc.stores import SQLiteYStore
 
 class MySQLiteYStore(SQLiteYStore):
     """