diff --git a/pyproject.toml b/pyproject.toml
index 0bb91b0..c1fd458 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,5 +8,8 @@ dependencies = [
     "tasklib>=2.5.1",
 ]
 
+[project.scripts]
+topen = "topen:main"
+
 [tool.pyright]
 typeCheckingMode = "standard"