shell: no duplicate + daemon option

src/caelestia/parser.py

@@ -18,6 +18,7 @@ def parse_args() -> (argparse.ArgumentParser, argparse.Namespace):
     shell_parser = command_parser.add_parser("shell", help="start or message the shell")
     shell_parser.set_defaults(cls=shell.Command)
     shell_parser.add_argument("message", nargs="*", help="a message to send to the shell")
+    shell_parser.add_argument("-d", "--daemon", action="store_true", help="start the shell detached")
     shell_parser.add_argument("-s", "--show", action="store_true", help="print all shell IPC commands")
     shell_parser.add_argument(
         "-l",

src/caelestia/subcommands/shell.py

@@ -20,7 +20,10 @@ class Command:
             self.message(*self.args.message)
         else:
             # Start the shell
-            subprocess.Popen(["qs", "-c", "caelestia"]).wait()
+            args = ["qs", "-n", "-c", "caelestia"]
+            if self.args.daemon:
+                args.append("-d")
+            subprocess.run(args)
 
     def shell(self, *args: list[str]) -> str:
         return subprocess.check_output(["qs", "-c", "caelestia", *args], text=True)