diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index bd342edf..98d2165d 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -12,7 +12,7 @@ In short, this is how that works.
 3. Install development dependencies:
 
    ```bash
-   pip install -r requirements-dev.txt
+   pip install -e .[dev]
    ```
 
 4. Make sure all tests pass:
diff --git a/src/compas_xr/ghpython/app_settings.py b/src/compas_xr/ghpython/app_settings.py
index 854a6f70..6112d23a 100644
--- a/src/compas_xr/ghpython/app_settings.py
+++ b/src/compas_xr/ghpython/app_settings.py
@@ -9,9 +9,7 @@ def ToString(self):
         return str(self)
 
     def __str__(self):
-        return "AppSettings, project_name={}, storage_folder={}, z_to_y_remap={}".format(
-            self.project_name, self.storage_folder, self.z_to_y_remap
-        )
+        return "AppSettings, project_name={}, storage_folder={}, z_to_y_remap={}".format(self.project_name, self.storage_folder, self.z_to_y_remap)
 
     def __data__(self):
         return {
diff --git a/src/compas_xr/ghpython/firebase_config.py b/src/compas_xr/ghpython/firebase_config.py
index bd489468..015752d2 100644
--- a/src/compas_xr/ghpython/firebase_config.py
+++ b/src/compas_xr/ghpython/firebase_config.py
@@ -10,9 +10,7 @@ def ToString(self):
         return str(self)
 
     def __str__(self):
-        return "FirebaseConfig, api_key={}, auth_domain={}, database_url={}, storage_bucket={}".format(
-            self.api_key, self.auth_domain, self.database_url, self.storage_bucket
-        )
+        return "FirebaseConfig, api_key={}, auth_domain={}, database_url={}, storage_bucket={}".format(self.api_key, self.auth_domain, self.database_url, self.storage_bucket)
 
     def __data__(self):
         return {
diff --git a/src/compas_xr/ghpython/trajectory_manager.py b/src/compas_xr/ghpython/trajectory_manager.py
index 0d9c0557..1f3e79b3 100644
--- a/src/compas_xr/ghpython/trajectory_manager.py
+++ b/src/compas_xr/ghpython/trajectory_manager.py
@@ -1,6 +1,3 @@
-from compas_robots import Configuration
-
-
 class TrajectoryResultManager(object):
     trajectory = None
     requested_element_id = None
@@ -10,9 +7,7 @@ def ToString(self):
         return str(self)
 
     def __str__(self):
-        return "Planning result for element {} with {} points".format(
-            self.requested_element_id, len(self.trajectory.points)
-        )
+        return "Planning result for element {} with {} points".format(self.requested_element_id, len(self.trajectory.points))
 
     def format_trajectory(self, trajectory, robot_name):
         configs_dicts = []
diff --git a/src/compas_xr/mqtt/messages.py b/src/compas_xr/mqtt/messages.py
index e9e35fa8..e8b4a2c8 100644
--- a/src/compas_xr/mqtt/messages.py
+++ b/src/compas_xr/mqtt/messages.py
@@ -103,9 +103,7 @@ class Header(Message):
     _shared_response_id_counter = None
     _device_id = None
 
-    def __init__(
-        self, increment_response_ID=False, sequence_id=None, response_id=None, device_id=None, time_stamp=None
-    ):
+    def __init__(self, increment_response_ID=False, sequence_id=None, response_id=None, device_id=None, time_stamp=None):
         super(Header, self).__init__()
         self["sequence_id"] = sequence_id or self._ensure_sequence_id()
         self["response_id"] = response_id or self._ensure_response_id(increment_response_ID)
diff --git a/src/compas_xr/realtime_database/realtime_database_cli.py b/src/compas_xr/realtime_database/realtime_database_cli.py
index d0fe43f3..599b6dc3 100644
--- a/src/compas_xr/realtime_database/realtime_database_cli.py
+++ b/src/compas_xr/realtime_database/realtime_database_cli.py
@@ -23,10 +23,8 @@
 clr.AddReference("LiteDB.dll")
 clr.AddReference("System.Reactive.dll")
 
-from Firebase.Auth import FirebaseAuthClient
-from Firebase.Auth import FirebaseAuthConfig
-from Firebase.Database import FirebaseClient
-from Firebase.Database.Query import QueryExtensions
+from Firebase.Database import FirebaseClient  # noqa: E402
+from Firebase.Database.Query import QueryExtensions  # noqa: E402
 
 
 class RealtimeDatabase(RealtimeDatabaseInterface):
@@ -96,11 +94,12 @@ def _get_file_from_remote(self, url):
         It also checks if the data is None or == null (firebase return if no data)
         """
         try:
-            get = urlopen(url).read()
-        except:
-            raise Exception("unable to get file from url {}".format(url))
-        if get is not None and get != "null":
-            return get
+            file_content = urlopen(url).read()
+        except Exception as e:
+            raise Exception("Unable to get file from url {}. Error={}".format(url, str(e)))
+
+        if file_content is not None and file_content != "null":
+            return file_content
         else:
             raise Exception("unable to get file from url {}".format(url))
 
diff --git a/src/compas_xr/storage/storage_cli.py b/src/compas_xr/storage/storage_cli.py
index 8845ff69..afa0c57e 100644
--- a/src/compas_xr/storage/storage_cli.py
+++ b/src/compas_xr/storage/storage_cli.py
@@ -25,9 +25,7 @@
 clr.AddReference("Firebase.dll")
 clr.AddReference("Firebase.Storage.dll")
 
-from Firebase.Auth import FirebaseAuthClient
-from Firebase.Auth import FirebaseAuthConfig
-from Firebase.Storage import FirebaseStorage
+from Firebase.Storage import FirebaseStorage  # noqa: E402
 
 
 class Storage(StorageInterface):
@@ -94,13 +92,12 @@ def _get_file_from_remote(self, url):
         It also checks if the data is None or == null (firebase return if no data)
         """
         try:
-            get = urlopen(url).read()
+            file_content = urlopen(url).read()
+        except Exception as e:
+            raise Exception("Unable to get file from url {}. Error={}".format(url, str(e)))
 
-        except:
-            raise Exception("unable to get file from url {}".format(url))
-
-        if get is not None and get != "null":
-            return get
+        if file_content is not None and file_content != "null":
+            return file_content
 
         else:
             raise Exception("unable to get file from url {}".format(url))
diff --git a/src/compas_xr/storage/storage_pyrebase.py b/src/compas_xr/storage/storage_pyrebase.py
index 0a776594..433d7f18 100644
--- a/src/compas_xr/storage/storage_pyrebase.py
+++ b/src/compas_xr/storage/storage_pyrebase.py
@@ -67,8 +67,8 @@ def _get_file_from_remote(self, url):
         """
         try:
             file_content = urlopen(url).read().decode()
-        except:
-            raise Exception("unable to get file from url {}".format(url))
+        except Exception as e:
+            raise Exception("Unable to get file from url {}. Error={}".format(url, str(e)))
 
         if file_content is not None and file_content != "null":
             return file_content