diff --git a/.config/cypress-devcontainer.yml b/.config/cypress-devcontainer.yml
index 91dce35155..ef72ad28d0 100644
--- a/.config/cypress-devcontainer.yml
+++ b/.config/cypress-devcontainer.yml
@@ -2,6 +2,19 @@
 # Misskey configuration
 #━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
+#   ┌───────────────┐
+#───┘ Initial Setup Password └─────────────────────────────────────────────────────
+
+# Password to initiate setting up admin account.
+# It will not be used after the initial setup is complete.
+#
+# Be sure to change this when you set up Misskey via the Internet.
+#
+# The provider of the service who sets up Misskey on behalf of the customer should
+# set this value to something unique when generating the Misskey config file,
+# and provide it to the customer.
+initialPassword: example_password_please_change_this_or_you_will_get_hacked
+
 #   ┌─────┐
 #───┘ URL └─────────────────────────────────────────────────────