From 4f6e25e16e5e047cb136f63b8d4757ea393ffb6b Mon Sep 17 00:00:00 2001
From: kferjaoui <khalilferjaoui@yahoo.fr>
Date: Sat, 13 Dec 2025 16:42:16 +0100
Subject: [PATCH 1/6] fix: avoid import-time cfg lookups; init globals after
 CLI parse

- Remove Redis-backed cfg access from globals.py module scope
- Avoid cfg.temserver as argparse default (prevents ValueError at startup)
- Initialize globals via globals.init() after parsing args and resolving cfg
---
 jungfrau_gui/globals.py |  62 +++++++++++++-------
 jungfrau_gui/main_ui.py | 125 ++++++++++++++++++++++++++--------------
 2 files changed, 125 insertions(+), 62 deletions(-)

diff --git a/jungfrau_gui/globals.py b/jungfrau_gui/globals.py
index 1db1125a..70f4b755 100644
--- a/jungfrau_gui/globals.py
+++ b/jungfrau_gui/globals.py
@@ -1,7 +1,6 @@
 import ctypes
 import numpy as np
 import multiprocessing as mp
-from epoc import ConfigurationClient, auth_token, redis_host
 import subprocess
 
 def get_git_info():
@@ -49,46 +48,69 @@ def get_git_info():
         # Git not installed or command failed
         return defaults
 
-cfg = ConfigurationClient(redis_host(), token=auth_token())
+# ----------------------------
+# Runtime-configurable globals
+# ----------------------------
 stream = "tcp://localhost:4545"
 tem_mode = True
-# jfj = False
-
-tem_host = cfg.temserver
+tem_host = "localhost"
 dev = False
-#Configuration
-nrow = cfg.nrows 
-ncol = cfg.ncols
+
+nrow = 0
+ncol = 0
 
 dtype = np.float32
 cdtype = ctypes.c_float
 
-# fitterWorkerReady = mp.Value(ctypes.c_bool)
-# fitterWorkerReady.value = False
-
 accframes = 0
-acc_image = np.zeros((nrow,ncol), dtype = dtype)
+acc_image = np.zeros((0, 0), dtype=dtype)  # allocated properly in init()
 
 exit_flag = mp.Value(ctypes.c_bool)
 exit_flag.value = False
 
-#Data type to write to file
+# Data type to write to file
 file_dt = np.int32
 
-#Data type to receive from the stream
+# Data type to receive from the stream
 stream_dt = np.float32
 
 # Flags for non-updated magnification values in MAG and DIFF modes
-mag_value_img = [1, 'X', 'X1']
-mag_value_diff = [1, 'mm', '1cm']
+mag_value_img = [1, "X", "X1"]
+mag_value_diff = [1, "mm", "1cm"]
 
-tag, branch, commit  = get_git_info()
+# Version info (safe at import; no Redis!)
+tag, branch, commit = get_git_info()
 
 # constants, presets
 UM_TO_NM = 1e3
 MM_TO_UM = 1e3
-KV_TO_V = 1e3 
-PIXEL = 0.075 # mm
+KV_TO_V = 1e3
+PIXEL = 0.075  # mm
 
-default_HT = 200000.00 # V
+default_HT = 200000.00  # V
 backlash = [100, 80, 0, 0]
+
+
+def init(*, stream_, dtype_, cdtype_, tem_mode_, tem_host_, dev_, nrow_, ncol_):
+    """
+    Initialize globals that previously depended on Redis at import-time.
+
+    Call this exactly once in launch_gui.py *before* importing modules that use globals.
+    """
+    global stream, dtype, cdtype, tem_mode, tem_host, dev, nrow, ncol, acc_image
+
+    stream = stream_
+    dtype = np.dtype(dtype_)
+    cdtype = cdtype_
+
+    tem_mode = bool(tem_mode_)
+    tem_host = str(tem_host_)
+    dev = bool(dev_)
+
+    nrow = int(nrow_)
+    ncol = int(ncol_)
+
+    if nrow <= 0 or ncol <= 0:
+        raise ValueError(f"Invalid detector geometry: nrow={nrow}, ncol={ncol}")
+
+    acc_image = np.zeros((nrow, ncol), dtype=dtype)
\ No newline at end of file
diff --git a/jungfrau_gui/main_ui.py b/jungfrau_gui/main_ui.py
index ac62a19b..6b1f34a6 100755
--- a/jungfrau_gui/main_ui.py
+++ b/jungfrau_gui/main_ui.py
@@ -20,6 +20,26 @@
 import os
 import datetime
 
+def _cfg_get(cfg, name: str, default=None):
+    """
+    Safely read a config attribute from ConfigurationClient.
+
+    Some properties (e.g. cfg.temserver) raise ValueError if missing.
+    """
+    try:
+        return getattr(cfg, name)
+    except (ValueError, AttributeError):
+        return default
+
+
+def _parse_dtype(dtype_str: str) -> np.dtype:
+    s = (dtype_str or "").strip().lower()
+    if s in ("float32", "f4", "np.float32"):
+        return np.dtype(np.float32)
+    if s in ("float64", "double", "f8", "np.float64", "np.double"):
+        return np.dtype(np.float64)
+    raise ValueError(f"Unknown dtype '{dtype_str}'. Use float32 or float64.")
+
 class CustomFormatter(logging.Formatter):
     # Define color codes for different log levels and additional styles
     # Foreground (text) colors
@@ -85,73 +105,94 @@ def format(self, record):
 
 def main():
     os.environ["QT_LOGGING_RULES"] = "qt.core.qobject.connect=false"
-
+    
     app = QApplication(sys.argv)
     app.setStyle("Fusion")
     
-    cfg = ConfigurationClient(redis_host(), token=auth_token())
-
+    # ---- Command-Line Interface FIRST (no Redis-backed defaults!) ----
     parser = argparse.ArgumentParser()
-    parser.add_argument('-s', '--stream', type=str, default="tcp://noether:5501", help="zmq stream") # default="tcp://localhost:4545"
-    parser.add_argument("-d", "--dtype", help="Data type", type = np.dtype, default=np.float32)
-    parser.add_argument("-p", "--playmode", action="store_true", help="Activates simplified GUI")
-    parser.add_argument("-th", "--temhost", default=cfg.temserver, help="Choose host for tem-gui communication")
-    parser.add_argument('-l', '--log', default='INFO', help='Set the logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)')
-    parser.add_argument("-f", "--logfile", action="store_true", help="File-output of logging")
-    parser.add_argument("-e", "--dev", action="store_true", help="Activate developing function")
-    parser.add_argument("-v", "--version", action="store_true", help="Detailed version description")
+    parser.add_argument("-s", "--stream", type=str, default="tcp://noether:5501", help="ZMQ stream endpoint",)
+    parser.add_argument("-d", "--dtype",  type=str, default="float32", help="Data type (float32 or float64)",)
+    parser.add_argument("-p", "--playmode", action="store_true", help="Activates simplified GUI",)
+    parser.add_argument("-th", "--temhost", default=None, help="Host for tem-gui communication (defaults to cfg.temserver if set)",)
+    parser.add_argument("--nrow", type=int, default=None, help="Override detector rows (defaults to cfg.nrows)",)
+    parser.add_argument("--ncol", type=int, default=None, help="Override detector cols (defaults to cfg.ncols)",)
+    parser.add_argument("-l", "--log", default="INFO", help="Set logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)",)
+    parser.add_argument("-f", "--logfile",  action="store_true", help="File-output of logging",)
+    parser.add_argument("-e", "--dev", action="store_true", help="Activate developing function",)
+    parser.add_argument("-v", "--version", action="store_true", help="Detailed version description",)
 
     args = parser.parse_args()
 
-    # Initialize logger
+    # ---- Logger setup ----
     logger = logging.getLogger()
-
-    # Dynamically set the log level based on args.log
-    log_level = getattr(logging, args.log.upper(), None) 
+    log_level = getattr(logging, args.log.upper(), None)
     if log_level is None:
-        raise ValueError(f"Invalid log level: {args.log}. Choose from DEBUG, INFO, WARNING, ERROR, CRITICAL.")
-
+        raise ValueError(
+            f"Invalid log level: {args.log}. Choose from DEBUG, INFO, WARNING, ERROR, CRITICAL."
+        )
     logger.setLevel(log_level)
 
-    # Create the handler for console output
     console_handler = logging.StreamHandler()
-
-    # Apply the custom formatter to the handler
-    formatter = CustomFormatter('%(asctime)s - %(levelname)s - %(message)s')
+    formatter = CustomFormatter("%(asctime)s - %(levelname)s - %(message)s")
     console_handler.setFormatter(formatter)
-
-    # Add the handler to the logger
     logger.addHandler(console_handler)
 
     if args.logfile:
-
-        # Determine the directory of the script being run
         launch_script_path = Path(sys.argv[0]).resolve().parent
         log_file_path = launch_script_path / f'JFGUI{time.strftime("_%Y%m%d-%H%M%S.log", time.localtime())}'
+        logging.info(f"Writing console loggings to: {log_file_path}")
 
-        logging.info(f"Writing console loggings to: {log_file_path}")  # Debugging line to verify file creation
-        
         file_handler = logging.FileHandler(log_file_path.as_posix())
         file_handler.setLevel(log_level)
-        file_formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s', datefmt='%H:%M:%S')
+        file_formatter = logging.Formatter(
+            "%(asctime)s - %(levelname)s - %(message)s",
+            datefmt="%H:%M:%S",
+        )
         file_handler.setFormatter(file_formatter)
         logger.addHandler(file_handler)
 
-    if args.dtype == np.float32:
-        globals.cdtype = ctypes.c_float
-    elif args.dtype == np.double:
-        cdtype = ctypes.c_double
+    # ---- Resolve dtype ----
+    dtype = _parse_dtype(args.dtype)
+    if dtype == np.dtype(np.float32):
+        cdtype = ctypes.c_float
     else:
-        raise ValueError("unknown data type")
-
-    # Update the type of global variables
-    globals.stream = args.stream 
-    globals.dtype = args.dtype
-    globals.acc_image = np.zeros((globals.nrow,globals.ncol), dtype = args.dtype)
-    globals.tem_mode = not args.playmode
-    globals.tem_host = args.temhost
-    globals.dev = args.dev
-    
+        cdtype = ctypes.c_double
+
+    # ---- Connect to config (Redis) AFTER parsing ----
+    cfg = ConfigurationClient(redis_host(), token=auth_token())
+
+    # Resolve TEM host safely (missing key should NOT crash)
+    tem_host = args.temhost or _cfg_get(cfg, "temserver", default=None)
+    if tem_host is None:
+        # pick a sensible fallback; you can change this
+        tem_host = "localhost"
+        logging.warning("cfg.temserver not set; defaulting tem_host to 'localhost'.")
+
+    # Resolve detector geometry safely
+    nrow = args.nrow if args.nrow is not None else _cfg_get(cfg, "nrows", default=None)
+    ncol = args.ncol if args.ncol is not None else _cfg_get(cfg, "ncols", default=None)
+
+    if nrow is None or ncol is None:
+        raise RuntimeError(
+            "Detector geometry missing (nrows/ncols). "
+            "Set cfg.nrows/cfg.ncols in Redis or pass --nrow/--ncol."
+        )
+
+    # ---- Initialize globals explicitly (NO import-time Redis reads) ----
+    from jungfrau_gui import globals
+
+    globals.init(
+        stream_=args.stream,
+        dtype_=dtype,
+        cdtype_=cdtype,
+        tem_mode_=not args.playmode,
+        tem_host_=tem_host,
+        dev_=args.dev,
+        nrow_=nrow,
+        ncol_=ncol,
+    )
+
     logging.info(f"{get_gui_info()}")
 
     if args.version:

From 5bf0870a8ca3e59ebe83c610e229715cd05432c8 Mon Sep 17 00:00:00 2001
From: kferjaoui <khalilferjaoui@yahoo.fr>
Date: Sat, 13 Dec 2025 20:08:51 +0100
Subject: [PATCH 2/6] refactor: normalize imports to jungfrau_gui.* absolute
 paths

---
 jungfrau_gui/main_ui.py                       |  8 +++----
 .../metadata_update_client.py                 |  2 +-
 .../file_operations/file_operations.py        | 12 +++++-----
 .../file_operations/processresult_updater.py  |  1 -
 .../tem_controls/connectivity_inspector.py    |  2 +-
 .../tem_controls/gaussian_fitter.py           |  2 +-
 .../tem_controls/gaussian_fitter_mp.py        |  6 ++---
 .../tem_controls/task/beam_focus_task.py      |  4 ++--
 .../tem_controls/task/get_teminfo_task.py     |  2 +-
 .../tem_controls/task/record_task.py          |  9 ++++---
 .../tem_controls/task/stage_centering_task.py |  5 ++--
 .../tem_controls/task/task_manager.py         | 24 +++++++------------
 .../ui_components/tem_controls/tem_action.py  | 17 ++++++-------
 .../tem_controls/tem_controls.py              | 16 ++++++-------
 .../tem_controls/toolbox/config.py            |  2 +-
 .../toolbox/fit_beam_intensity.py             |  2 +-
 .../tem_controls/toolbox/plot_dialog.py       |  2 +-
 .../tem_controls/toolbox/tool.py              |  2 +-
 .../tem_controls/ui_tem_specific.py           |  6 ++---
 .../visualization_panel/reader.py             |  2 +-
 .../visualization_panel.py                    | 20 +++++++---------
 jungfrau_gui/ui_main_window.py                | 14 +++++------
 jungfrau_gui/zmq_receiver.py                  |  4 ++--
 23 files changed, 75 insertions(+), 89 deletions(-)

diff --git a/jungfrau_gui/main_ui.py b/jungfrau_gui/main_ui.py
index 6b1f34a6..2c24e242 100755
--- a/jungfrau_gui/main_ui.py
+++ b/jungfrau_gui/main_ui.py
@@ -9,10 +9,10 @@
 from PySide6.QtWidgets import QApplication
 from PySide6.QtCore import QCoreApplication
 
-from . import globals
-from .ui_components import palette
-from .zmq_receiver import ZmqReceiver
-from .ui_main_window import ApplicationWindow, get_gui_info
+from jungfrau_gui import globals
+from jungfrau_gui.ui_components import palette
+from jungfrau_gui.zmq_receiver import ZmqReceiver
+from jungfrau_gui.ui_main_window import ApplicationWindow, get_gui_info
 
 from pathlib import Path
 from epoc import ConfigurationClient, auth_token, redis_host
diff --git a/jungfrau_gui/metadata_uploader/metadata_update_client.py b/jungfrau_gui/metadata_uploader/metadata_update_client.py
index 30b29494..958b4fea 100644
--- a/jungfrau_gui/metadata_uploader/metadata_update_client.py
+++ b/jungfrau_gui/metadata_uploader/metadata_update_client.py
@@ -8,7 +8,7 @@
 from datetime import datetime
 import argparse
 from pathlib import Path
-from .. import globals
+from jungfrau_gui import globals
 
 # Handle imports correctly when running as a standalone script
 if __name__ == "__main__" and __package__ is None:
diff --git a/jungfrau_gui/ui_components/file_operations/file_operations.py b/jungfrau_gui/ui_components/file_operations/file_operations.py
index 4e0052aa..931bf2cd 100644
--- a/jungfrau_gui/ui_components/file_operations/file_operations.py
+++ b/jungfrau_gui/ui_components/file_operations/file_operations.py
@@ -4,14 +4,14 @@
 from PySide6.QtWidgets import (QGroupBox, QVBoxLayout, QHBoxLayout, QLabel, QLineEdit, QSpinBox, QCheckBox, QComboBox, QCompleter)
 
 
-from ...ui_components.toggle_button import ToggleButton
-from ...ui_components.utils import create_horizontal_line_with_margin
-from ...ui_components.palette import *
-from ...ui_components.tem_controls.toolbox.tool import send_with_retries
-from ...metadata_uploader.metadata_update_client import MetadataNotifier
+from jungfrau_gui.ui_components.toggle_button import ToggleButton
+from jungfrau_gui.ui_components.utils import create_horizontal_line_with_margin
+from jungfrau_gui.ui_components.palette import *
+from jungfrau_gui.ui_components.tem_controls.toolbox.tool import send_with_retries
+from jungfrau_gui.metadata_uploader.metadata_update_client import MetadataNotifier
 
 from epoc import ConfigurationClient, auth_token, redis_host
-from ... import globals
+from jungfrau_gui import globals
 
 import os
 import re
diff --git a/jungfrau_gui/ui_components/file_operations/processresult_updater.py b/jungfrau_gui/ui_components/file_operations/processresult_updater.py
index 637a0a34..9355ddde 100644
--- a/jungfrau_gui/ui_components/file_operations/processresult_updater.py
+++ b/jungfrau_gui/ui_components/file_operations/processresult_updater.py
@@ -5,7 +5,6 @@
 from datetime import datetime
 import argparse
 from pathlib import Path
-# from .. import globals
 from PySide6.QtCore import Signal, Slot, QObject
 import time
 
diff --git a/jungfrau_gui/ui_components/tem_controls/connectivity_inspector.py b/jungfrau_gui/ui_components/tem_controls/connectivity_inspector.py
index 29ca6ea1..1f813e91 100644
--- a/jungfrau_gui/ui_components/tem_controls/connectivity_inspector.py
+++ b/jungfrau_gui/ui_components/tem_controls/connectivity_inspector.py
@@ -3,7 +3,7 @@
 
 from simple_tem import TEMClient
 
-from ... import globals
+from jungfrau_gui import globals
 
 class TEM_Connector(QObject):
     finished = Signal(bool)
diff --git a/jungfrau_gui/ui_components/tem_controls/gaussian_fitter.py b/jungfrau_gui/ui_components/tem_controls/gaussian_fitter.py
index 90af1957..d68d0ed9 100644
--- a/jungfrau_gui/ui_components/tem_controls/gaussian_fitter.py
+++ b/jungfrau_gui/ui_components/tem_controls/gaussian_fitter.py
@@ -3,7 +3,7 @@
 from PySide6.QtCore import QObject, Signal, Slot
 # from line_profiler import LineProfiler
 
-from .toolbox.fit_beam_intensity import gaussian2d_rotated, super_gaussian2d_rotated, fit_2d_gaussian_roi_NaN
+from jungfrau_gui.ui_components.tem_controls.toolbox.fit_beam_intensity import gaussian2d_rotated, super_gaussian2d_rotated, fit_2d_gaussian_roi_NaN
 
 class GaussianFitter(QObject):
     finished = Signal(object)
diff --git a/jungfrau_gui/ui_components/tem_controls/gaussian_fitter_mp.py b/jungfrau_gui/ui_components/tem_controls/gaussian_fitter_mp.py
index 9197c25f..46c140b3 100644
--- a/jungfrau_gui/ui_components/tem_controls/gaussian_fitter_mp.py
+++ b/jungfrau_gui/ui_components/tem_controls/gaussian_fitter_mp.py
@@ -5,10 +5,10 @@
 from line_profiler import LineProfiler
 import zmq
 import cbor2
-from ...decoder import tag_hook
-from ... import globals
+from jungfrau_gui.decoder import tag_hook
+from jungfrau_gui. import globals
 
-from .toolbox.fit_beam_intensity import gaussian2d_rotated, super_gaussian2d_rotated, fit_2d_gaussian_roi_NaN_fast
+from jungfrau_gui.ui_components.tem_controls.toolbox.fit_beam_intensity import gaussian2d_rotated, super_gaussian2d_rotated, fit_2d_gaussian_roi_NaN_fast
 from datetime import datetime
 
 # import globals
diff --git a/jungfrau_gui/ui_components/tem_controls/task/beam_focus_task.py b/jungfrau_gui/ui_components/tem_controls/task/beam_focus_task.py
index c1811829..5064f356 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/beam_focus_task.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/beam_focus_task.py
@@ -2,9 +2,9 @@
 import time
 import logging
 import numpy as np
-from .task import Task
+from jungfrau_gui.ui_components.tem_controls.task import Task
 
-from .... import globals
+from jungfrau_gui import globals
 from PySide6.QtCore import Qt, QMetaObject, Signal
 from datetime import datetime
 
diff --git a/jungfrau_gui/ui_components/tem_controls/task/get_teminfo_task.py b/jungfrau_gui/ui_components/tem_controls/task/get_teminfo_task.py
index a7ad573b..ec9694dc 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/get_teminfo_task.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/get_teminfo_task.py
@@ -2,7 +2,7 @@
 import logging
 import numpy as np
 
-from .task import Task
+from jungfrau_gui.ui_components.tem_controls.task import Task
 from epoc import ConfigurationClient, auth_token, redis_host
 
 class GetInfoTask(Task):
diff --git a/jungfrau_gui/ui_components/tem_controls/task/record_task.py b/jungfrau_gui/ui_components/tem_controls/task/record_task.py
index 27b8e7f9..1b5c0bea 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/record_task.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/record_task.py
@@ -3,16 +3,15 @@
 import h5py
 import logging
 import numpy as np
-from .task import Task
 from PySide6.QtWidgets import QMessageBox
 from PySide6.QtCore import Signal, Qt, QMetaObject
 from simple_tem import TEMClient
 from epoc import ConfigurationClient, auth_token, redis_host
-from ..toolbox.tool import send_with_retries
 
-from ....metadata_uploader.metadata_update_client import MetadataNotifier
-
-from .... import globals
+from jungfrau_gui import globals
+from jungfrau_gui.ui_components.tem_controls.toolbox.tool import send_with_retries
+from jungfrau_gui.ui_components.tem_controls.task import Task
+from jungfrau_gui.metadata_uploader.metadata_update_client import MetadataNotifier
 
 class RecordTask(Task):
     reset_rotation_signal = Signal()
diff --git a/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py b/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py
index 20a6917b..da25d24d 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py
@@ -1,10 +1,11 @@
 import time
 import logging
 import numpy as np
-from .task import Task
+
+from jungfrau_gui import globals
+from jungfrau_gui.ui_components.tem_controls.task import Task
 
 from simple_tem import TEMClient
-from .... import globals
 from epoc import ConfigurationClient, auth_token, redis_host
 from jungfrau_gui.ui_components.tem_controls.toolbox import config as cfg_jf
 
diff --git a/jungfrau_gui/ui_components/tem_controls/task/task_manager.py b/jungfrau_gui/ui_components/tem_controls/task/task_manager.py
index 1a9b16e7..1f4520c9 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/task_manager.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/task_manager.py
@@ -7,25 +7,19 @@
 
 from PySide6.QtCore import Signal, Slot, QObject, QThread, QMetaObject, Qt, QTimer
 
-from .task import Task
-from .record_task import RecordTask
-
-from .beam_focus_task import AutoFocusTask
-
-from .get_teminfo_task import GetInfoTask
-from .stage_centering_task import CenteringTask
+from jungfrau_gui import globals
+import jungfrau_gui.ui_threading_helpers as thread_manager
+from jungfrau_gui.ui_components.tem_controls.task import Task
+from jungfrau_gui.ui_components.tem_controls.task.record_task import RecordTask
+from jungfrau_gui.ui_components.tem_controls.task.beam_focus_task import AutoFocusTask
+from jungfrau_gui.ui_components.tem_controls.task.get_teminfo_task import GetInfoTask
+from jungfrau_gui.ui_components.tem_controls.task.stage_centering_task import CenteringTask
+from jungfrau_gui.ui_components.tem_controls.toolbox import tool as tools
+from jungfrau_gui.ui_components.tem_controls.gaussian_fitter_mp import GaussianFitterMP
 
 from simple_tem import TEMClient
-from ..toolbox import tool as tools
-
 from epoc import ConfigurationClient, auth_token, redis_host
 
-import jungfrau_gui.ui_threading_helpers as thread_manager
-
-from .... import globals
-
-from ..gaussian_fitter_mp import GaussianFitterMP
-
 def on_new_best_result_in_main_thread(result_dict):
     # This runs in the main thread. We can safely update GUI elements, logs, etc.
     print("New best result =>", result_dict)
diff --git a/jungfrau_gui/ui_components/tem_controls/tem_action.py b/jungfrau_gui/ui_components/tem_controls/tem_action.py
index 9ee91cdd..f97b330a 100644
--- a/jungfrau_gui/ui_components/tem_controls/tem_action.py
+++ b/jungfrau_gui/ui_components/tem_controls/tem_action.py
@@ -5,18 +5,15 @@
 from PySide6.QtCore import QRectF, QObject, QTimer, Qt, QMetaObject, Signal, Slot
 from PySide6.QtGui import QFont, QTransform
 
-from .toolbox.tool import *
-from .toolbox import config as cfg_jf
-
-from .task.task_manager import *
+import jungfrau_gui.ui_threading_helpers as thread_manager
+from jungfrau_gui.ui_components.tem_controls.toolbox.tool import *
+from jungfrau_gui.ui_components.tem_controls.toolbox import config as cfg_jf
+from jungfrau_gui.ui_components.tem_controls.task.task_manager import *
+from jungfrau_gui.ui_components.tem_controls.connectivity_inspector import TEM_Connector
+from jungfrau_gui.ui_components.file_operations.processresult_updater import ProcessedDataReceiver
+from jungfrau_gui.ui_components.tem_controls.tem_status_updater import TemUpdateWorker
 
 from epoc import ConfigurationClient, auth_token, redis_host
-
-from .connectivity_inspector import TEM_Connector
-from ..file_operations.processresult_updater import ProcessedDataReceiver
-from .tem_status_updater import TemUpdateWorker
-
-import jungfrau_gui.ui_threading_helpers as thread_manager
 import time
 
 from jungfrau_gui import globals
diff --git a/jungfrau_gui/ui_components/tem_controls/tem_controls.py b/jungfrau_gui/ui_components/tem_controls/tem_controls.py
index e2025768..9171f654 100644
--- a/jungfrau_gui/ui_components/tem_controls/tem_controls.py
+++ b/jungfrau_gui/ui_components/tem_controls/tem_controls.py
@@ -1,7 +1,8 @@
 import math
 import logging
+import threading
 import numpy as np
-from ... import globals
+from jungfrau_gui import globals
 import pyqtgraph as pg
 from datetime import datetime
 from PySide6.QtCore import QThread, Qt, QRectF, QMetaObject, Slot, Signal, QTimer
@@ -9,18 +10,17 @@
 from PySide6.QtWidgets import (QGroupBox, QVBoxLayout, QHBoxLayout, QLabel, QSpinBox,
                                QDoubleSpinBox, QCheckBox, QGraphicsEllipseItem, QGraphicsRectItem)
 
-from .toolbox.plot_dialog import PlotDialog
-from .gaussian_fitter import GaussianFitter
+from jungfrau_gui.ui_components.tem_controls.toolbox.plot_dialog import PlotDialog
+from jungfrau_gui.ui_components.tem_controls.gaussian_fitter import GaussianFitter
 
-from ...ui_components.toggle_button import ToggleButton
-from .ui_tem_specific import TEMStageCtrl, TEMTasks #, XtalInfo
-from .tem_action import TEMAction
+from jungfrau_gui.ui_components.toggle_button import ToggleButton
+from jungfrau_gui.ui_components.tem_controls.ui_tem_specific import TEMStageCtrl, TEMTasks #, XtalInfo
+from jungfrau_gui.ui_components.tem_controls.tem_action import TEMAction
 
 import jungfrau_gui.ui_threading_helpers as thread_manager
 
 from epoc import ConfigurationClient, auth_token, redis_host
-from ...ui_components.palette import *
-import threading
+from jungfrau_gui.ui_components.palette import *
 from PySide6.QtWidgets import QApplication
 
 class TemControls(QGroupBox):
diff --git a/jungfrau_gui/ui_components/tem_controls/toolbox/config.py b/jungfrau_gui/ui_components/tem_controls/toolbox/config.py
index 67c03b58..4bead7fc 100644
--- a/jungfrau_gui/ui_components/tem_controls/toolbox/config.py
+++ b/jungfrau_gui/ui_components/tem_controls/toolbox/config.py
@@ -12,7 +12,7 @@
 from PySide6.QtCore import QRectF
 
 from epoc import ConfigurationClient, auth_token, redis_host
-from .... import globals
+from jungfrau_gui import globals
 
 f = files('jungfrau_gui').joinpath('ui_components/tem_controls/toolbox/jfgui2_config.json')
 parser = json.loads(f.read_text())
diff --git a/jungfrau_gui/ui_components/tem_controls/toolbox/fit_beam_intensity.py b/jungfrau_gui/ui_components/tem_controls/toolbox/fit_beam_intensity.py
index c5e5b039..17f38a17 100644
--- a/jungfrau_gui/ui_components/tem_controls/toolbox/fit_beam_intensity.py
+++ b/jungfrau_gui/ui_components/tem_controls/toolbox/fit_beam_intensity.py
@@ -7,7 +7,7 @@
 from scipy.interpolate import griddata
 from line_profiler import LineProfiler
 
-from .... import globals
+from jungfrau_gui import globals
 
 def filter_outliers(im_roi, lower_percentile=1, upper_percentile=99.99):
     """
diff --git a/jungfrau_gui/ui_components/tem_controls/toolbox/plot_dialog.py b/jungfrau_gui/ui_components/tem_controls/toolbox/plot_dialog.py
index 1cde965b..724fc5eb 100644
--- a/jungfrau_gui/ui_components/tem_controls/toolbox/plot_dialog.py
+++ b/jungfrau_gui/ui_components/tem_controls/toolbox/plot_dialog.py
@@ -4,7 +4,7 @@
 from PySide6.QtWidgets import QPushButton, QVBoxLayout, QDialog
 from PySide6.QtCore import QTime
 
-from ... import palette
+from jungfrau_gui.ui_components import palette
 
 
 class PlotDialog(QDialog):
diff --git a/jungfrau_gui/ui_components/tem_controls/toolbox/tool.py b/jungfrau_gui/ui_components/tem_controls/toolbox/tool.py
index 0f41f058..088dec88 100644
--- a/jungfrau_gui/ui_components/tem_controls/toolbox/tool.py
+++ b/jungfrau_gui/ui_components/tem_controls/toolbox/tool.py
@@ -3,7 +3,7 @@
 import logging
 import zmq
 
-from .... import globals
+from jungfrau_gui import globals
 
 def create_full_mapping(info_queries, more_queries, init_queries, info_queries_client, more_queries_client, init_queries_client):
     """
diff --git a/jungfrau_gui/ui_components/tem_controls/ui_tem_specific.py b/jungfrau_gui/ui_components/tem_controls/ui_tem_specific.py
index b52af456..556c8c74 100644
--- a/jungfrau_gui/ui_components/tem_controls/ui_tem_specific.py
+++ b/jungfrau_gui/ui_components/tem_controls/ui_tem_specific.py
@@ -2,12 +2,12 @@
                                QRadioButton, QPushButton, QCheckBox, QDoubleSpinBox, QSizePolicy, QComboBox,
                                QSpinBox, QWidget, QGridLayout)
 from PySide6.QtGui import QFont
-from ..toggle_button import ToggleButton
-from ..utils import create_horizontal_line_with_margin
+from jungfrau_gui.ui_components.toggle_button import ToggleButton
+from jungfrau_gui.ui_components.utils import create_horizontal_line_with_margin
+from jungfrau_gui import globals
 
 from epoc import ConfigurationClient, auth_token, redis_host
 
-from ... import globals
 import pyqtgraph as pg
 import numpy as np
 
diff --git a/jungfrau_gui/ui_components/visualization_panel/reader.py b/jungfrau_gui/ui_components/visualization_panel/reader.py
index 5b852f64..d1885c64 100644
--- a/jungfrau_gui/ui_components/visualization_panel/reader.py
+++ b/jungfrau_gui/ui_components/visualization_panel/reader.py
@@ -1,6 +1,6 @@
 import logging
 import numpy as np 
-from ... import globals
+from jungfrau_gui import globals
 
 from PySide6.QtCore import QObject, Signal, Slot
 
diff --git a/jungfrau_gui/ui_components/visualization_panel/visualization_panel.py b/jungfrau_gui/ui_components/visualization_panel/visualization_panel.py
index f7a2120d..93644b48 100644
--- a/jungfrau_gui/ui_components/visualization_panel/visualization_panel.py
+++ b/jungfrau_gui/ui_components/visualization_panel/visualization_panel.py
@@ -9,22 +9,18 @@
                                 QLabel, QPushButton, QSpinBox, QCheckBox,
                                 QGridLayout, QSizePolicy, QSpacerItem, QMessageBox)
 
-from epoc import ConfigurationClient, auth_token, redis_host
-
-from .reader import Reader
-
-from ... import globals
-from ...ui_components.toggle_button import ToggleButton
-from ..tem_controls.ui_tem_specific import TEMDetector
-from ...ui_components.utils import create_horizontal_line_with_margin
-
+from jungfrau_gui import globals
 import jungfrau_gui.ui_threading_helpers as thread_manager
+from jungfrau_gui.ui_components.palette import *
+from jungfrau_gui.ui_components.toggle_button import ToggleButton
+from jungfrau_gui.ui_components.utils import create_horizontal_line_with_margin
+from jungfrau_gui.ui_components.tem_controls.toolbox import config as cfg_jf
+from jungfrau_gui.ui_components.tem_controls.ui_tem_specific import TEMDetector
+from jungfrau_gui.ui_components.tem_controls.toolbox.progress_pop_up import ProgressPopup
+from jungfrau_gui.ui_components.visualization_panel.reader import Reader
 
 from epoc import JungfraujochWrapper, ConfigurationClient, auth_token, redis_host
-from ...ui_components.palette import *
 from rich import print
-from ..tem_controls.toolbox.progress_pop_up import ProgressPopup
-from jungfrau_gui.ui_components.tem_controls.toolbox import config as cfg_jf
 
 font_big = QFont("Arial", 11)
 font_big.setBold(True)
diff --git a/jungfrau_gui/ui_main_window.py b/jungfrau_gui/ui_main_window.py
index fec1eeee..17801c92 100644
--- a/jungfrau_gui/ui_main_window.py
+++ b/jungfrau_gui/ui_main_window.py
@@ -1,19 +1,19 @@
 import logging
-from . import globals
+from jungfrau_gui import globals
 import numpy as np
 import pyqtgraph as pg
-from .ui_components.overlay import draw_overlay 
+from jungfrau_gui.ui_components.overlay import draw_overlay 
 from pyqtgraph.dockarea import Dock
 from PySide6.QtWidgets import (QMainWindow, QVBoxLayout, QWidget,
                                 QHBoxLayout, QPushButton, QGridLayout,
                                 QMessageBox, QTabWidget, QLabel)
 from PySide6.QtCore import Qt, QObject, QEvent, QTimer
 from PySide6.QtGui import QShortcut, QKeySequence
-from .ui_components.visualization_panel.visualization_panel import VisualizationPanel
-from .ui_components.tem_controls.tem_controls import TemControls
-from .ui_components.file_operations.file_operations import FileOperations
-from .ui_components.utils import create_gaussian
-from .ui_components.toggle_button import ToggleButton
+from jungfrau_gui.ui_components.visualization_panel.visualization_panel import VisualizationPanel
+from jungfrau_gui.ui_components.tem_controls.tem_controls import TemControls
+from jungfrau_gui.ui_components.file_operations.file_operations import FileOperations
+from jungfrau_gui.ui_components.utils import create_gaussian
+from jungfrau_gui.ui_components.toggle_button import ToggleButton
 
 import jungfrau_gui.ui_threading_helpers as thread_manager
 
diff --git a/jungfrau_gui/zmq_receiver.py b/jungfrau_gui/zmq_receiver.py
index 019f8b2f..7d6feee8 100644
--- a/jungfrau_gui/zmq_receiver.py
+++ b/jungfrau_gui/zmq_receiver.py
@@ -2,9 +2,9 @@
 import time
 import logging
 import numpy as np
-from . import globals
+from jungfrau_gui import globals
 import cbor2
-from .decoder import tag_hook
+from jungfrau_gui.decoder import tag_hook
 
 
 # Receiver of the ZMQ stream

From b874e6990bd48d5e50487404799eee335b4987c4 Mon Sep 17 00:00:00 2001
From: kferjaoui <khalilferjaoui@yahoo.fr>
Date: Sat, 13 Dec 2025 20:58:49 +0100
Subject: [PATCH 3/6] fix: correct global imports

---
 jungfrau_gui/ui_components/tem_controls/gaussian_fitter_mp.py   | 2 +-
 jungfrau_gui/ui_components/tem_controls/task/beam_focus_task.py | 2 +-
 .../ui_components/tem_controls/task/get_teminfo_task.py         | 2 +-
 jungfrau_gui/ui_components/tem_controls/task/record_task.py     | 2 +-
 .../ui_components/tem_controls/task/stage_centering_task.py     | 2 +-
 jungfrau_gui/ui_components/tem_controls/task/task_manager.py    | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/jungfrau_gui/ui_components/tem_controls/gaussian_fitter_mp.py b/jungfrau_gui/ui_components/tem_controls/gaussian_fitter_mp.py
index 46c140b3..131eadae 100644
--- a/jungfrau_gui/ui_components/tem_controls/gaussian_fitter_mp.py
+++ b/jungfrau_gui/ui_components/tem_controls/gaussian_fitter_mp.py
@@ -6,7 +6,7 @@
 import zmq
 import cbor2
 from jungfrau_gui.decoder import tag_hook
-from jungfrau_gui. import globals
+from jungfrau_gui import globals
 
 from jungfrau_gui.ui_components.tem_controls.toolbox.fit_beam_intensity import gaussian2d_rotated, super_gaussian2d_rotated, fit_2d_gaussian_roi_NaN_fast
 from datetime import datetime
diff --git a/jungfrau_gui/ui_components/tem_controls/task/beam_focus_task.py b/jungfrau_gui/ui_components/tem_controls/task/beam_focus_task.py
index 5064f356..b6e8bdb1 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/beam_focus_task.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/beam_focus_task.py
@@ -2,7 +2,7 @@
 import time
 import logging
 import numpy as np
-from jungfrau_gui.ui_components.tem_controls.task import Task
+from jungfrau_gui.ui_components.tem_controls.task.task import Task
 
 from jungfrau_gui import globals
 from PySide6.QtCore import Qt, QMetaObject, Signal
diff --git a/jungfrau_gui/ui_components/tem_controls/task/get_teminfo_task.py b/jungfrau_gui/ui_components/tem_controls/task/get_teminfo_task.py
index ec9694dc..ec9e8bff 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/get_teminfo_task.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/get_teminfo_task.py
@@ -2,7 +2,7 @@
 import logging
 import numpy as np
 
-from jungfrau_gui.ui_components.tem_controls.task import Task
+from jungfrau_gui.ui_components.tem_controls.task.task import Task
 from epoc import ConfigurationClient, auth_token, redis_host
 
 class GetInfoTask(Task):
diff --git a/jungfrau_gui/ui_components/tem_controls/task/record_task.py b/jungfrau_gui/ui_components/tem_controls/task/record_task.py
index 1b5c0bea..7c4b462d 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/record_task.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/record_task.py
@@ -10,7 +10,7 @@
 
 from jungfrau_gui import globals
 from jungfrau_gui.ui_components.tem_controls.toolbox.tool import send_with_retries
-from jungfrau_gui.ui_components.tem_controls.task import Task
+from jungfrau_gui.ui_components.tem_controls.task.task import Task
 from jungfrau_gui.metadata_uploader.metadata_update_client import MetadataNotifier
 
 class RecordTask(Task):
diff --git a/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py b/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py
index da25d24d..9e7c3031 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py
@@ -3,7 +3,7 @@
 import numpy as np
 
 from jungfrau_gui import globals
-from jungfrau_gui.ui_components.tem_controls.task import Task
+from jungfrau_gui.ui_components.tem_controls.task.task import Task
 
 from simple_tem import TEMClient
 from epoc import ConfigurationClient, auth_token, redis_host
diff --git a/jungfrau_gui/ui_components/tem_controls/task/task_manager.py b/jungfrau_gui/ui_components/tem_controls/task/task_manager.py
index 1f4520c9..d40d7fef 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/task_manager.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/task_manager.py
@@ -9,7 +9,7 @@
 
 from jungfrau_gui import globals
 import jungfrau_gui.ui_threading_helpers as thread_manager
-from jungfrau_gui.ui_components.tem_controls.task import Task
+from jungfrau_gui.ui_components.tem_controls.task.task import Task
 from jungfrau_gui.ui_components.tem_controls.task.record_task import RecordTask
 from jungfrau_gui.ui_components.tem_controls.task.beam_focus_task import AutoFocusTask
 from jungfrau_gui.ui_components.tem_controls.task.get_teminfo_task import GetInfoTask

From d0cd89a3db08ee337f3ffa071fbd956e00efa1e9 Mon Sep 17 00:00:00 2001
From: kferjaoui <khalilferjaoui@yahoo.fr>
Date: Sun, 14 Dec 2025 11:59:59 +0100
Subject: [PATCH 4/6] fix f-string

---
 .../ui_components/tem_controls/task/stage_centering_task.py     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py b/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py
index 9e7c3031..b61a7e4f 100644
--- a/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py
+++ b/jungfrau_gui/ui_components/tem_controls/task/stage_centering_task.py
@@ -72,7 +72,7 @@ def run(self):
         
         if tilt_X_abs < 5:
             if np.abs(movexy[0]) < self.thresholds['dxy_min'] and np.abs(movexy[1]) < self.thresholds['dxy_min']:
-                logging.info(f'Vector already small enough (< {self.thresholds['dxy_min']} um): {movexy[0]}, {movexy[1]}')
+                logging.info(f"Vector already small enough (< {self.thresholds['dxy_min']} um): {movexy[0]}, {movexy[1]}")
                 return
             logging.info(f'Move X: {movexy[0]} um,  Y: {movexy[1]} um with MAG: {magnification[2]}')
             self.control.trigger_movewithbacklash.emit(np.sign(movexy[0]) > 0, -movexy[0]*globals.UM_TO_NM, globals.backlash[0], False)            

From 108d9acf621fcbf6c693d646778c592961c514da Mon Sep 17 00:00:00 2001
From: kferjaoui <khalilferjaoui@yahoo.fr>
Date: Sun, 14 Dec 2025 21:08:27 +0100
Subject: [PATCH 5/6] fix: remove unused/redundant imports

---
 jungfrau_gui/main_ui.py | 2 --
 1 file changed, 2 deletions(-)

diff --git a/jungfrau_gui/main_ui.py b/jungfrau_gui/main_ui.py
index 2c24e242..fb940a66 100755
--- a/jungfrau_gui/main_ui.py
+++ b/jungfrau_gui/main_ui.py
@@ -7,9 +7,7 @@
 import numpy as np
 import time
 from PySide6.QtWidgets import QApplication
-from PySide6.QtCore import QCoreApplication
 
-from jungfrau_gui import globals
 from jungfrau_gui.ui_components import palette
 from jungfrau_gui.zmq_receiver import ZmqReceiver
 from jungfrau_gui.ui_main_window import ApplicationWindow, get_gui_info

From 4ce77e8d8d9efd3bd230e53a4ea680d16e1e5e3f Mon Sep 17 00:00:00 2001
From: Khalil Daniel Ferjaoui <ferjao_k@pc11979.psi.ch>
Date: Fri, 13 Feb 2026 10:20:48 +0100
Subject: [PATCH 6/6] refactor: make Redis mandatory at startup, add config
 bootstrap files

Entry point (main_ui.py):
- Remove graceful fallback for missing Redis connection; fail fast
  with logging.critical + sys.exit(1) instead
- Remove _cfg_get helper
- Simplify parameter resolution to: CLI override -> cfg attribute
- Update ABOUT_TEXT version description

New files:
- epoc-config.yaml: default Redis configuration template with
  documented fields for detector geometry, network endpoints,
  acquisition settings, and display overlays
- init_redis.py: bootstrap script to populate Redis from YAML
  (flush_db=True) for fresh deployments
---
 epoc-config.yaml                              |  42 +++++
 init_redis.py                                 |  11 ++
 jungfrau_gui/main_ui.py                       | 158 +++++++++++-------
 .../tem_controls/toolbox/config.py            |   4 +-
 4 files changed, 149 insertions(+), 66 deletions(-)
 create mode 100644 epoc-config.yaml
 create mode 100644 init_redis.py

diff --git a/epoc-config.yaml b/epoc-config.yaml
new file mode 100644
index 00000000..87048c4f
--- /dev/null
+++ b/epoc-config.yaml
@@ -0,0 +1,42 @@
+# EPOC Redis Configuration
+
+# Experiment metadata
+affiliation: "YourInstitution"
+PI_name: "DefaultPI"
+project_id: "ProjectID"
+experiment_class: "External"
+measurement_tag: "sample1"
+
+# Data directories
+base_data_dir: "/data/jungfrau"
+XDS_template: "/path/to/XDS.INP"
+cal_dir: "/path/to/calibration"
+
+# Detector settings (e.g. of 1 Megapixel JUNGFRAU)
+nrows: 1064
+ncols: 1030
+threshold: 5
+
+# Viewer settings
+viewer_interval: 20.0
+viewer_cmin: 0.0
+viewer_cmax: 12000.0
+
+# Network endpoints
+jfjoch_host: "http://jungfrau-server:5232"      # Replace by the HTTP address of the Jungfraujoch web GUI
+receiver_endpoint: "tcp://jungfrau-server:5000" # look at the ZMQ stream endpoint in the Jungfraujoch Web GUI
+temserver: "temserver"                          # IP address of the TEM control machine (define in /etc/hosts)
+
+# Acquisition settings
+rotation_speed_idx: 0
+file_id: 0
+
+# Display overlays (optional)
+overlays:
+ - {'type': 'circle', 'xy': [526, 253], 'radius': 188, 'ec': 'r', 'fill': False, 'lw': 2}
+ - {'type': 'circle', 'xy': [526, 253], 'radius': 5, 'ec': 'g', 'fill': False, 'lw': 2}
+ - {'type': 'rectangle', 'xy': [574, 52], 'width': 60, 'height': 31, 'angle': 27.5, 'ec': 'y', 'fill': False}
+ - {'type': 'rectangle', 'xy': [0, 0], 'width': 1000, 'height': 1, 'angle': 19.8, 'ec': 'r', 'fill': False}
+
+# Used affiliations list
+usedAffiliations: ["YourInstitution", "External"]
\ No newline at end of file
diff --git a/init_redis.py b/init_redis.py
new file mode 100644
index 00000000..5d0fe1bc
--- /dev/null
+++ b/init_redis.py
@@ -0,0 +1,11 @@
+from pathlib import Path
+from epoc import ConfigurationClient, auth_token, redis_host
+
+# Connect to Redis
+cfg = ConfigurationClient(redis_host(), token=auth_token())
+
+# Load configuration from YAML (flush_db=True clears any existing data)
+cfg.from_yaml(Path('epoc-config.yaml'), flush_db=True)
+
+print("Redis database initialized successfully!")
+print(cfg)
\ No newline at end of file
diff --git a/jungfrau_gui/main_ui.py b/jungfrau_gui/main_ui.py
index fb940a66..2b26debd 100755
--- a/jungfrau_gui/main_ui.py
+++ b/jungfrau_gui/main_ui.py
@@ -18,6 +18,41 @@
 import os
 import datetime
 
+import textwrap
+
+ABOUT_TEXT = textwrap.dedent("""\
+    ┌───────────────────────────────────────────────────────────────────┐
+    │  Graphical User Interface for Electron Diffraction (JUNGFRAU GUI) │
+    └───────────────────────────────────────────────────────────────────┘
+
+    Project:  EPOC (Electrostatic Potential Of Compounds ─ DOI: 10.55776/I6546)
+    Years:    2024–
+    Version:  {version}
+
+    Repositories:
+      - https://github.com/epoc-ed/GUI
+      - https://github.com/epoc-ed
+
+    Documentation:
+      - https://epoc-ed.github.io/manual/index.html
+
+    License:
+      - MIT License
+        This project is distributed under the MIT License.
+        See the LICENSE file for the full text.
+
+    Authors & Acknowledgments
+    Core contributors:
+      - Khalil Ferjaoui — PSI
+      - Kiyofumi Takaba — University of Vienna
+      - Erik Fröjd — PSI
+      - Tim Gruene — University of Vienna
+""")
+
+def log_version_info(version: str) -> None:
+    logging.info("\n%s", ABOUT_TEXT.format(version=version))
+
+
 def _cfg_get(cfg, name: str, default=None):
     """
     Safely read a config attribute from ConfigurationClient.
@@ -103,23 +138,32 @@ def format(self, record):
 
 def main():
     os.environ["QT_LOGGING_RULES"] = "qt.core.qobject.connect=false"
-    
+
     app = QApplication(sys.argv)
     app.setStyle("Fusion")
-    
-    # ---- Command-Line Interface FIRST (no Redis-backed defaults!) ----
-    parser = argparse.ArgumentParser()
-    parser.add_argument("-s", "--stream", type=str, default="tcp://noether:5501", help="ZMQ stream endpoint",)
-    parser.add_argument("-d", "--dtype",  type=str, default="float32", help="Data type (float32 or float64)",)
-    parser.add_argument("-p", "--playmode", action="store_true", help="Activates simplified GUI",)
-    parser.add_argument("-th", "--temhost", default=None, help="Host for tem-gui communication (defaults to cfg.temserver if set)",)
-    parser.add_argument("--nrow", type=int, default=None, help="Override detector rows (defaults to cfg.nrows)",)
-    parser.add_argument("--ncol", type=int, default=None, help="Override detector cols (defaults to cfg.ncols)",)
-    parser.add_argument("-l", "--log", default="INFO", help="Set logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)",)
-    parser.add_argument("-f", "--logfile",  action="store_true", help="File-output of logging",)
-    parser.add_argument("-e", "--dev", action="store_true", help="Activate developing function",)
-    parser.add_argument("-v", "--version", action="store_true", help="Detailed version description",)
 
+    # ---- CLI ----
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-s", "--stream",   type=str, default=None,
+                        help="ZMQ stream endpoint (overrides cfg.receiver_endpoint)")
+    parser.add_argument("-d", "--dtype",    type=str, default="float32",
+                        help="Data type (float32 or float64)")
+    parser.add_argument("-p", "--playmode", action="store_true",
+                        help="Activates simplified GUI")
+    parser.add_argument("-th", "--temhost", default=None,
+                        help="Host for tem-gui communication (overrides cfg.temserver)")
+    parser.add_argument("--nrow",           type=int, default=None,
+                        help="Override detector rows (overrides cfg.nrows)")
+    parser.add_argument("--ncol",           type=int, default=None,
+                        help="Override detector cols (overrides cfg.ncols)")
+    parser.add_argument("-l", "--log",      default="INFO",
+                        help="Set logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)")
+    parser.add_argument("-f", "--logfile",  action="store_true",
+                        help="File-output of logging")
+    parser.add_argument("-e", "--dev",      action="store_true",
+                        help="Activate developing function")
+    parser.add_argument("-v", "--version",  action="store_true",
+                        help="Detailed version description")
     args = parser.parse_args()
 
     # ---- Logger setup ----
@@ -127,7 +171,8 @@ def main():
     log_level = getattr(logging, args.log.upper(), None)
     if log_level is None:
         raise ValueError(
-            f"Invalid log level: {args.log}. Choose from DEBUG, INFO, WARNING, ERROR, CRITICAL."
+            f"Invalid log level: {args.log}. "
+            "Choose from DEBUG, INFO, WARNING, ERROR, CRITICAL."
         )
     logger.setLevel(log_level)
 
@@ -138,50 +183,41 @@ def main():
 
     if args.logfile:
         launch_script_path = Path(sys.argv[0]).resolve().parent
-        log_file_path = launch_script_path / f'JFGUI{time.strftime("_%Y%m%d-%H%M%S.log", time.localtime())}'
-        logging.info(f"Writing console loggings to: {log_file_path}")
-
+        log_file_path = launch_script_path / (
+            f'JFGUI{time.strftime("_%Y%m%d-%H%M%S.log", time.localtime())}'
+        )
+        logging.info("Writing console loggings to: %s", log_file_path)
         file_handler = logging.FileHandler(log_file_path.as_posix())
         file_handler.setLevel(log_level)
-        file_formatter = logging.Formatter(
-            "%(asctime)s - %(levelname)s - %(message)s",
-            datefmt="%H:%M:%S",
-        )
-        file_handler.setFormatter(file_formatter)
+        file_handler.setFormatter(logging.Formatter(
+            "%(asctime)s - %(levelname)s - %(message)s", datefmt="%H:%M:%S",
+        ))
         logger.addHandler(file_handler)
 
-    # ---- Resolve dtype ----
+    # ---- dtype ----
     dtype = _parse_dtype(args.dtype)
-    if dtype == np.dtype(np.float32):
-        cdtype = ctypes.c_float
-    else:
-        cdtype = ctypes.c_double
-
-    # ---- Connect to config (Redis) AFTER parsing ----
-    cfg = ConfigurationClient(redis_host(), token=auth_token())
-
-    # Resolve TEM host safely (missing key should NOT crash)
-    tem_host = args.temhost or _cfg_get(cfg, "temserver", default=None)
-    if tem_host is None:
-        # pick a sensible fallback; you can change this
-        tem_host = "localhost"
-        logging.warning("cfg.temserver not set; defaulting tem_host to 'localhost'.")
-
-    # Resolve detector geometry safely
-    nrow = args.nrow if args.nrow is not None else _cfg_get(cfg, "nrows", default=None)
-    ncol = args.ncol if args.ncol is not None else _cfg_get(cfg, "ncols", default=None)
-
-    if nrow is None or ncol is None:
-        raise RuntimeError(
-            "Detector geometry missing (nrows/ncols). "
-            "Set cfg.nrows/cfg.ncols in Redis or pass --nrow/--ncol."
-        )
+    cdtype = ctypes.c_float if dtype == np.dtype(np.float32) else ctypes.c_double
 
-    # ---- Initialize globals explicitly (NO import-time Redis reads) ----
+    # ---- Redis (mandatory) ----
+    try:
+        cfg = ConfigurationClient(redis_host(), token=auth_token())
+    except Exception as e:
+        logging.critical("Cannot connect to Redis configuration server: %s", e)
+        sys.exit(1)
+
+    logging.info("Connected to Redis configuration.")
+
+    # ---- Resolve parameters: CLI override  Redis ----
+    stream  = args.stream  or cfg.receiver_endpoint
+    tem_host = args.temhost or cfg.temserver
+    nrow    = args.nrow    if args.nrow is not None else cfg.nrows
+    ncol    = args.ncol    if args.ncol is not None else cfg.ncols
+
+    # ---- Initialize globals ----
     from jungfrau_gui import globals
 
     globals.init(
-        stream_=args.stream,
+        stream_=stream,
         dtype_=dtype,
         cdtype_=cdtype,
         tem_mode_=not args.playmode,
@@ -191,27 +227,21 @@ def main():
         ncol_=ncol,
     )
 
-    logging.info(f"{get_gui_info()}")
+    info = get_gui_info()
+    logging.info("%s", info)
 
     if args.version:
-        logging.info('''
-            **Detailed information of authors, years, project name, Github URL, license, contact address, etc.**
-            Graphical User Interface for Electron Diffraction with JUNGFRAU (2024-)
-            https://github.com/epoc-ed/GUI
-            EPOC Project (2024-)
-            https://github.com/epoc-ed
-            https://epoc-ed.github.io/manual/index.html
-        ''')
+        version = info.removeprefix("Jungfrau GUI ").strip()
+        log_version_info(version)
+        raise SystemExit(0)
 
-    Rcv = ZmqReceiver(endpoint=args.stream, dtype=args.dtype) 
+    Rcv = ZmqReceiver(endpoint=stream, dtype=dtype)
 
     viewer = ApplicationWindow(Rcv, app)
-    app_palette = palette.get_palette("dark")
-    viewer.setPalette(app_palette)
-
+    viewer.setPalette(palette.get_palette("dark"))
     viewer.show()
-    # QCoreApplication.processEvents()
 
     sys.exit(app.exec())
+
 if __name__ == "__main__":
     main()
diff --git a/jungfrau_gui/ui_components/tem_controls/toolbox/config.py b/jungfrau_gui/ui_components/tem_controls/toolbox/config.py
index 4bead7fc..7677bb75 100644
--- a/jungfrau_gui/ui_components/tem_controls/toolbox/config.py
+++ b/jungfrau_gui/ui_components/tem_controls/toolbox/config.py
@@ -16,7 +16,6 @@
 
 f = files('jungfrau_gui').joinpath('ui_components/tem_controls/toolbox/jfgui2_config.json')
 parser = json.loads(f.read_text())
-cfg = ConfigurationClient(redis_host(), token=auth_token())
 
 class lut:
     distance = parser['distances']
@@ -31,6 +30,7 @@ def __init__(self):
         self.array_data = np.array([list(d.values()) for d in self.distance])
         self.raw_grid = np.delete(self.array_data, [2, 4, 5, 6], -1)[:-3,:] # remove date, unit, mag, and brightness at the moment
         self.data_grid = np.array([[int(nominal[:-2])*10, int(ht_value), float(calibrated)] for nominal, calibrated, ht_value in self.raw_grid])
+        self.cfg = ConfigurationClient(redis_host(), token=auth_token())
 
     def _lookup(self, dic, key, label_search, label_get, index=0):
         df_lut = pd.json_normalize(dic)
@@ -89,7 +89,7 @@ def overlays_for_ht(self, ht_in_V):
         item_circle = QGraphicsEllipseItem(QRectF(x-r, y-r, 2*r, 2*r))
         item_circle.setPen(pg.mkPen('r', width=2))
 
-        r = cfg.overlays[0]['radius']
+        r = self.cfg.overlays[0]['radius']
         item_common = QGraphicsEllipseItem(QRectF(x-r, y-r, 2*r, 2*r))
         item_common.setPen(pg.mkPen('r', width=2))