diff --git a/release/pack-raylib.py b/release/pack-raylib.py
index 964093c4dd..a128e46d78 100755
--- a/release/pack-raylib.py
+++ b/release/pack-raylib.py
@@ -11,9 +11,8 @@ from pathlib import Path
 from openpilot.common.basedir import BASEDIR
 
 
-ENTRYPOINT = 'main'
+EXTS = ['.png', '.py']
 INTERPRETER = '/usr/bin/env python3'
-EXTS = ['.py', '.png']
 
 
 def copy(src, dest, follow_symlinks=False):
@@ -22,9 +21,10 @@ def copy(src, dest, follow_symlinks=False):
 
 
 if __name__ == '__main__':
-  parser = ArgumentParser(prog='pack-raylib.py', description='Package a raylib UI into a portable executable.', epilog='comma.ai')
+  parser = ArgumentParser(prog='pack-raylib.py', description="package openpilot's raylib code into a portable executable", epilog='comma.ai')
+  parser.add_argument('-e', '--entrypoint', help="function to call in module, default is 'main'", default='main')
   parser.add_argument('-o', '--output', help='output file')
-  parser.add_argument('module')
+  parser.add_argument('module', help="the module to target, e.g. 'openpilot.system.ui.spinner'")
   args = parser.parse_args()
 
   if not args.output:
@@ -36,13 +36,13 @@ if __name__ == '__main__':
     print(f'{args.module} not found, typo?')
     sys.exit(1)
 
-  if not hasattr(mod, ENTRYPOINT):
-    print(f'{args.module} does not have a {ENTRYPOINT}() function')
+  if not hasattr(mod, args.entrypoint):
+    print(f'{args.module} does not have a {args.entrypoint}() function, typo?')
     sys.exit(1)
 
   with tempfile.TemporaryDirectory() as tmp:
     shutil.copytree(BASEDIR + '/openpilot', tmp, symlinks=False, dirs_exist_ok=True, copy_function=copy)
-    entry = f'{args.module}:{ENTRYPOINT}'
+    entry = f'{args.module}:{args.entrypoint}'
     zipapp.create_archive(tmp, target=args.output, interpreter=INTERPRETER, main=entry)
 
   print(f'created executable {Path(args.output).resolve()}')