Preserve changes to override and added link button

src/window.py

@@ -54,6 +54,9 @@ class AlpacaWindow(Adw.ApplicationWindow):
     chats = {"chats": {_("New Chat"): {"messages": []}}, "selected_chat": "New Chat"}
     attached_image = {"path": None, "base64": None}
 
+    #Override elements
+    override_HSA_OVERRIDE_GFX_VERSION = Gtk.Template.Child()
+
     #Elements
     create_model_base = Gtk.Template.Child()
     create_model_name = Gtk.Template.Child()
@@ -325,6 +328,10 @@ class AlpacaWindow(Adw.ApplicationWindow):
         self.save_server_config()
         if not self.run_remote: local_instance.reset()
 
+    @Gtk.Template.Callback()
+    def link_button_handler(self, button):
+        webbrowser.open(button.get_name())
+
     def check_alphanumeric(self, editable, text, length, position):
         new_text = ''.join([char for char in text if char.isalnum() or char in ['-', '_']])
         if new_text != text: editable.stop_emission_by_name("insert-text")
@@ -1024,6 +1031,13 @@ class AlpacaWindow(Adw.ApplicationWindow):
                 self.keep_alive_spin.set_value(self.model_tweaks['keep_alive'])
                 #Overrides
                 if "ollama_overrides" in data: local_instance.overrides = data['ollama_overrides']
+                for override, element in {"HSA_OVERRIDE_GFX_VERSION": self.override_HSA_OVERRIDE_GFX_VERSION}.items():
+                    if override and override in local_instance.overrides:
+                        model = element.get_model()
+                        for i in range(model.get_n_items()):
+                            if model.get_string(i) == local_instance.overrides[override]:
+                                element.set_selected(i)
+
 
                 self.background_switch.set_active(self.run_on_background)
                 self.set_hide_on_close(self.run_on_background)

src/window.ui

@@ -367,11 +367,23 @@
               <property name="title" translatable="yes">Ollama Overrides</property>
               <property name="description" translatable="yes">Manage the arguments used on Ollama, any changes on this page only applies to the integrated instance, the instance will restart if you make changes</property>
               <child>
-                <object class="AdwComboRow" id="gfx_combo">
+                <object class="AdwComboRow" id="override_HSA_OVERRIDE_GFX_VERSION">
                   <signal name="notify" handler="override_changed"/>
                   <property name="name">HSA_OVERRIDE_GFX_VERSION</property>
                   <property name="title" translatable="no">AMD Radeon GFX</property>
                   <property name="subtitle" translatable="yes">HSA_OVERRIDE_GFX_VERSION</property>
+                  <child type="prefix">
+                    <object class="GtkButton">
+                      <signal name="clicked" handler="link_button_handler"/>
+                      <property name="name">https://github.com/ollama/ollama/blob/main/docs/gpu.md#overrides</property>
+                      <property name="vexpand">false</property>
+                      <property name="valign">3</property>
+                      <property name="icon-name">globe-symbolic</property>
+                      <style>
+                        <class name="success"/>
+                      </style>
+                    </object>
+                  </child>
                   <property name="model">
                     <object class="GtkStringList">
                       <items>