diff --git a/invenio_utilities_tuw/cli/__init__.py b/invenio_utilities_tuw/cli/__init__.py
index 117c642fc9ed3087cf343bce03b8e0a25636f821..409319b32bbc4443cda082697ae001ca4dba5267 100644
--- a/invenio_utilities_tuw/cli/__init__.py
+++ b/invenio_utilities_tuw/cli/__init__.py
@@ -10,4 +10,4 @@
 
 from .cli import utilities
 
-__all__ = (utilities,)
+__all__ = ("utilities",)
diff --git a/invenio_utilities_tuw/ext.py b/invenio_utilities_tuw/ext.py
index ab88fbe69418bb0216803ce1dd4572441a5e4843..93cb7d751e931a9b8bf396e8f1f57aafad168ee9 100644
--- a/invenio_utilities_tuw/ext.py
+++ b/invenio_utilities_tuw/ext.py
@@ -8,20 +8,14 @@
 
 """Some utilities for InvenioRDM."""
 
-from flask_babelex import gettext as _
-
 from . import config
 
 
-class InvenioUtilitiesTUW(object):
+class InvenioUtilitiesTUW:
     """Invenio-Utilities-TUW extension."""
 
     def __init__(self, app=None):
         """Extension initialization."""
-        # TODO: This is an example of translation string with comment. Please
-        # remove it.
-        # NOTE: This is a note to a translator.
-        _("A translation string")
         if app:
             self.init_app(app)
 
@@ -32,12 +26,6 @@ class InvenioUtilitiesTUW(object):
 
     def init_config(self, app):
         """Initialize configuration."""
-        # Use theme's base template if theme is installed
-        if "BASE_TEMPLATE" in app.config:
-            app.config.setdefault(
-                "UTILITIES_TUW_BASE_TEMPLATE",
-                app.config["BASE_TEMPLATE"],
-            )
         for k in dir(config):
             if k.startswith("UTILITIES_TUW_"):
                 app.config.setdefault(k, getattr(config, k))