diff --git a/README.md b/README.md
index b920a085..dca281bc 100644
--- a/README.md
+++ b/README.md
@@ -12,8 +12,12 @@ This application is designed for reserving rooms at the 370J Media Commons Room.
 
 ## Deployment
 
-We employ GitHub workflows for our deployment process.
-Any merges into the main branch automatically trigger a deployment to the production Google App Script.
+We employ GitHub workflows for our deployment process. Pushing or merging to different branches will automatically trigger different Google App Script deploys:
+- `main` branch: triggers the DEVELOPMENT deploy, which serves from localhost and reads/writes the development calendars
+- `staging` branch: triggers the STAGING deploy, which serves from the GAS project and reads/writes the development calendars
+- `prod` branch: triggers the PRODUCTION deploy, which serves from the GAS project and reads/writes the **production** calendars
+
+The `NODE_ENV` environment variable controls where we serve from, and the `CALENDAR_ENV` environment variable controls which calendars we use. These values are specified in the `package.json` commands triggered by the workflows
 
 ## Preparation