diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0d20b64
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.pyc
diff --git a/foucault/__pycache__/__init__.cpython-313.pyc b/foucault/__pycache__/__init__.cpython-313.pyc
deleted file mode 100644
index 8513b21..0000000
Binary files a/foucault/__pycache__/__init__.cpython-313.pyc and /dev/null differ
diff --git a/foucault/__pycache__/gui.cpython-313.pyc b/foucault/__pycache__/gui.cpython-313.pyc
deleted file mode 100644
index 51e83fa..0000000
Binary files a/foucault/__pycache__/gui.cpython-313.pyc and /dev/null differ
diff --git a/foucault/gui.py b/foucault/gui.py
index c890b3b..18d06a5 100644
--- a/foucault/gui.py
+++ b/foucault/gui.py
@@ -86,6 +86,7 @@ class SubprocessController():
 
     @classmethod
     def from_toml(cls, filename: os.PathLike):
+        logger.info(f"Load from TOML {filename}")
         path = pathlib.Path(filename) 
         name = path.stem
         args = []
@@ -93,7 +94,7 @@ class SubprocessController():
             data = tomllib.load(fp)
             print(data)
         
-        for arg in data['arguments']:
+        for arg in data.get('arguments', []):
             args.append(Argument.from_dict(arg))
         
         sc = cls(
@@ -198,10 +199,34 @@ class Foucault():
     def __init__(self):
         self.processes: list[SubprocessController] = []
         self.uis: list[SubprocessUI] = []
+        self.directories: list[pathlib.Path] = []
 
     def add_process(self, sc: SubprocessController):
+        logger.info(f"add process {sc.as_bash_string()}")
         self.processes.append(sc)
         self.uis.append(SubprocessUI(sc))
+        self.ui.refresh()
+
+    def watch(self, path: os.PathLike):
+        path = pathlib.Path(path).resolve()
+        if path.is_dir():
+            if path in self.directories:
+                logger.warning(f"Path already watched {path}")
+            self.directories.append(path)
+            self.update_watched()
+        elif path.suffix == 'toml':
+            self.add_process(SubprocessController.from_toml(path))
+        else:
+            raise RuntimeError(f"Not a valid path {path}")
+    
+    def update_watched(self):
+        # TODO)) It would be great to use e.g. Watchdog
+        fns = [scu.sc.filename for scu in self.uis]
+        for d in self.directories:
+            config_files = d.glob("**/*.toml")
+            for path in config_files:
+                if path not in fns:
+                    self.add_process(SubprocessController.from_toml(path))
 
     def run_all(self):
         for p in self.processes:
@@ -217,6 +242,7 @@ class Foucault():
         self.stop_all()
         self.run_all()
 
+    @ui.refreshable_method
     def ui(self):
         with ui.row():
             ui.button('▶', on_click=self.run_all)
@@ -248,6 +274,7 @@ class Foucault():
             i+=1
             # if we're only interested in running, we can use os.waitpid(), but we also check config changes
             time.sleep(.3) 
+            self.update_watched()
             for proc_ui in self.uis:
                 state = proc_ui.sc.state()
                 if state != states[proc_ui.sc]:
@@ -262,7 +289,7 @@ class SubprocessUI:
     
     @ui.refreshable_method
     def ui(self):
-        card_class = "bg-teal" if self.sc.is_running() else ("bg-warning" if self.sc.return_code() else "bg-gray")
+        card_class = "bg-teal" if self.sc.is_running() else ("bg-warning" if self.sc.return_code() and math.abs(self.sc.return_code()) != 15 else "bg-gray")
         with ui.card().classes(card_class):
             with ui.row(align_items="stretch").classes('w-full'):
                 if self.sc.return_code():
@@ -276,7 +303,7 @@ class SubprocessUI:
                     ui.button('↺', on_click=self.sc.restart, color='red' if self.sc.is_stale() else "primary")
             
             
-            ui.label(f'Running: {self.sc.is_running()}')
+            ui.label(f'Running: {self.sc.is_running()}' + f"({self.sc.return_code()})")
             ui.code(f'{" ".join(self.sc.cmd)}')
             ui.code(self.sc.as_bash_string())
             ui.separator()
diff --git a/main.py b/main.py
index 2e24fb4..ab8c673 100644
--- a/main.py
+++ b/main.py
@@ -2,21 +2,9 @@ from pathlib import Path
 from foucault.gui import *
 
 
-# print(sc)
-
 logging.basicConfig(level=logging.INFO)
 
 conductofconduct = Foucault()
-sc = SubprocessController.from_toml(Path('processes/tail.toml'))
-sc2 = SubprocessController.from_toml(Path('processes/tail2.toml'))
-sc3 = SubprocessController.from_toml(Path('processes/tail.toml'))
-conductofconduct.add_process(sc)
-conductofconduct.add_process(sc2)
-conductofconduct.add_process(sc3)
-# conductofconduct.add_process(SubprocessController("test1" , ["tail"], ['-f', "gui.py"]))
-# conductofconduct.add_process(SubprocessController("test2" , ["tail"], ['-f', "gui.py"]))
-# conductofconduct.add_process(SubprocessController("test3 broken" , ["tail"], ['-f', "nonexistent.py"]))
-# conductofconduct.add_process(SubprocessController("system status" , ["uv run status.py"], ['-f', "nonexistent.py"]))
-
+conductofconduct.watch("processes")
 conductofconduct.run()