diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index bc656e1..4b34505 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -42,7 +42,7 @@
 
 	// Use 'postCreateCommand' to run commands after the container is created.
 	"postCreateCommand": "poetry install",
-	"postAttachCommand": "poetry shell",
+	// "postAttachCommand": "poetry shell",
 	// Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
 	"remoteUser": "vscode",
 	"features": {
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..4e9273d
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+test:  ## Run the tests in current environment
+	pytest tests/ --verbose