diff --git a/src/heurams/interface/main.py b/src/heurams/interface/__main__.py
similarity index 83%
rename from src/heurams/interface/main.py
rename to src/heurams/interface/__main__.py
index fe36e28..6ada380 100644
--- a/src/heurams/interface/main.py
+++ b/src/heurams/interface/__main__.py
@@ -2,17 +2,18 @@ from textual.app import App, ComposeResult
 from textual.widgets import Button, Header, Label, Footer
 
 class HeurAMSApp(App):
-    #CSS_PATH = "question02.tcss"
     TITLE = "潜进"
     SUB_TITLE = "启发式辅助记忆调度器"
+    BINDINGS = [("q", "quit", "退出"), ("d", "toggle_dark", "改变色调")]
 
     def compose(self) -> ComposeResult:
         yield Header(show_clock = True)
-
+        
         yield Footer(show_command_palette = True)
     
     def on_mount(self) -> None:
-
+        pass
+    
     def on_button_pressed(self, event: Button.Pressed) -> None:
         self.exit(event.button.id)
 
diff --git a/src/heurams/interface/widgets/fileexpr.py b/src/heurams/interface/widgets/fileexpr.py
index e8dfa03..e69de29 100644
--- a/src/heurams/interface/widgets/fileexpr.py
+++ b/src/heurams/interface/widgets/fileexpr.py
@@ -1,25 +0,0 @@
-from textual.widget import Widget
-
-class FileSelector(Widget):
-    def __init__(self, *children: Widget, name: str | None = None, id: str | None = None, classes: str | None = None, disabled: bool = False, markup: bool = True) -> None:
-        super().__init__(*children, name=name, id=id, classes=classes, disabled=disabled, markup=markup)
-    def a(self):
-        file_list_widget = self.query_one("#file-list", ListView)
-        nucleon_path = pathlib.Path("./nucleon")
-        nucleon_files = sorted(
-            [f for f in nucleon_path.iterdir() if f.suffix == ".toml"],
-            key=lambda f: Glimpse(pt.NucleonUnion(f)).next_date,
-            reverse=True
-        )
-
-        if nucleon_files:
-            for file in nucleon_files:
-                text = self.item_desc_generator(pathlib.Path(file))
-                file_list_widget.append(ListItem(
-                    Label(text[0] + '\n' + text[1]),
-                    ))
-        else:
-            file_list_widget.append(
-                ListItem(Static("在 ./nucleon/ 中未找到任何内容源数据文件.\n请放置文件后重启应用.\n或者新建空的单元集."))
-            )
-            file_list_widget.disabled = True
diff --git a/src/heurams/kernel/reactor/fission.py b/src/heurams/kernel/reactor/fission.py
index 26f3593..46afaca 100644
--- a/src/heurams/kernel/reactor/fission.py
+++ b/src/heurams/kernel/reactor/fission.py
@@ -16,5 +16,5 @@ class Fission():
             if random.random() <= possibility:
                 self.puzzles.append(puz.puzzles[item])
             
-    def iterator(self):
+    def generate(self):
         yield from self.puzzles
\ No newline at end of file
diff --git a/src/heurams/providers/llm/openai_llm.py b/src/heurams/providers/llm/deepseek.py
similarity index 100%
rename from src/heurams/providers/llm/openai_llm.py
rename to src/heurams/providers/llm/deepseek.py
diff --git a/src/heurams/providers/llm/openai.py b/src/heurams/providers/llm/openai.py
new file mode 100644
index 0000000..e69de29