diff --git a/README.md b/README.md
index 70fa353..184618c 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,10 @@
 py-gmail-unread
 ===============
+
+I wanted to inject the number of unread messages I have into my ZSH prompt and
+obviously I needed a way to get the unread count. This script should be set up
+in cron to run periodically as it's a bit too slow for inline calls. Depends on
+the EMAIL environment variable as well as your password being loaded up into
+the OSX keychain under the name "email" using your password as the account. The
+script saves the unread count out to /tmp/GMAIL_UNREAD and then you can do
+whatever the fuck you want do to with it, as long as it's not illegal.
diff --git a/gmail-unread.py b/gmail-unread.py
new file mode 100755
index 0000000..96e27d1
--- /dev/null
+++ b/gmail-unread.py
@@ -0,0 +1,15 @@
+#!/usr/bin/env python3
+
+from __future__ import print_function
+import imaplib
+import os
+
+email    = os.environ['EMAIL']
+password = os.popen('security find-generic-password -w -s email -a "' + email + '"').read().replace('\n', '')
+
+imap = imaplib.IMAP4_SSL('imap.gmail.com', '993')
+imap.login(email, password)
+imap.select()
+
+fp = open('/tmp/GMAIL_UNREAD', 'w')
+print(len(imap.search(None,'UnSeen')[1][0].split()), file=fp)