diff --git a/kiauh/components/webui_client/client_utils.py b/kiauh/components/webui_client/client_utils.py
index dc93d04..e313e25 100644
--- a/kiauh/components/webui_client/client_utils.py
+++ b/kiauh/components/webui_client/client_utils.py
@@ -78,10 +78,10 @@ def get_current_client_config() -> str:
     installed = [c for c in clients if c.client_config.config_dir.exists()]
 
     if not installed:
-        return Color.apply("-", Color.CYAN)
+        return str(Color.apply("-", Color.CYAN))
     elif len(installed) == 1:
         cfg = installed[0].client_config
-        return Color.apply(cfg.display_name, Color.CYAN)
+        return str(Color.apply(cfg.display_name, Color.CYAN))
 
     # at this point, both client config folders exists, so we need to check
     # which are actually included in the printer.cfg of all klipper instances
@@ -100,18 +100,18 @@ def get_current_client_config() -> str:
 
         # if both are included in the same file, we have a potential conflict
         if includes_mainsail and includes_fluidd:
-            return Color.apply("Conflict", Color.YELLOW)
+            return str(Color.apply("Conflict", Color.YELLOW))
 
     if not mainsail_includes and not fluidd_includes:
         # there are no includes at all, even though the client config folders exist
-        return Color.apply("-", Color.CYAN)
+        return str(Color.apply("-", Color.CYAN))
     elif len(fluidd_includes) > len(mainsail_includes):
         # there are more instances that include fluidd than mainsail
-        return Color.apply(fluidd.client_config.display_name, Color.CYAN)
+        return str(Color.apply(fluidd.client_config.display_name, Color.CYAN))
     else:
         # there are the same amount of non-conflicting includes for each config
         # or more instances include mainsail than fluidd
-        return Color.apply(mainsail.client_config.display_name, Color.CYAN)
+        return str(Color.apply(mainsail.client_config.display_name, Color.CYAN))
 
 
 def enable_mainsail_remotemode() -> None:
@@ -445,9 +445,9 @@ def get_client_port_selection(
     while True:
         _type = "Reconfigure" if reconfigure else "Configure"
         question = f"{_type} {client.display_name} for port"
-        port_input = get_number_input(question, min_value=80, default=port)
+        port_input: int | None = get_number_input(question, min_value=80, default=port)
 
-        if port_input not in ports_in_use:
+        if port_input and port_input not in ports_in_use:
             client_settings: WebUiSettings = settings[client.name]
             client_settings.port = port_input
             settings.save()
diff --git a/kiauh/components/webui_client/menus/client_install_menu.py b/kiauh/components/webui_client/menus/client_install_menu.py
index 8a5aed1..142b713 100644
--- a/kiauh/components/webui_client/menus/client_install_menu.py
+++ b/kiauh/components/webui_client/menus/client_install_menu.py
@@ -97,7 +97,7 @@ class ClientInstallMenu(BaseMenu):
         self.message_service.set_message(message)
 
     def _get_current_port(self) -> int:
-        curr_port = get_nginx_listen_port(self.client.nginx_config)
+        curr_port: int | None = get_nginx_listen_port(self.client.nginx_config)
         if curr_port is None:
             # if the port is not found in the config file we use
             # the default port from the kiauh settings as fallback
diff --git a/kiauh/utils/common.py b/kiauh/utils/common.py
index 19ce776..13b3ffa 100644
--- a/kiauh/utils/common.py
+++ b/kiauh/utils/common.py
@@ -42,7 +42,7 @@ def get_kiauh_version() -> str:
     Helper method to get the current KIAUH version by reading the latest tag
     :return: string of the latest tag or a default value if no tags exist
     """
-    tags = get_local_tags(Path(__file__).parent.parent)
+    tags: List[str] = get_local_tags(Path(__file__).parent.parent)
     if tags:
         return tags[-1]
     else:
diff --git a/kiauh/utils/input_utils.py b/kiauh/utils/input_utils.py
index 659a962..9c994ae 100644
--- a/kiauh/utils/input_utils.py
+++ b/kiauh/utils/input_utils.py
@@ -156,7 +156,7 @@ def format_question(question: str, default=None) -> str:
     if default is not None:
         formatted_q += f" (default={default})"
 
-    return Color.apply(f"###### {formatted_q}: ", Color.CYAN)
+    return str(Color.apply(f"###### {formatted_q}: ", Color.CYAN))
 
 
 def validate_number_input(value: str, min_count: int, max_count: int | None) -> int: