diff --git a/README.md b/README.md
index 79ccf95..fdbc081 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ You can get these values by running `bbb-conf --secret` on your BBB server.
 https://devcenter.heroku.com/articles/build-docker-images-heroku-yml
 ```
 heroku login
-heroku create
+heroku create --region eu bbb-stress-test
 heroku stack:set container
 git push heroku master
 ```
diff --git a/set-heroku-env.sh b/set-heroku-env.sh
index c7210c0..29523c5 100644
--- a/set-heroku-env.sh
+++ b/set-heroku-env.sh
@@ -1,12 +1,10 @@
-# BBB URL and secret can be retrieved by running bbb-conf --secret on the BBB server.
-heroku config:set BBB_URL=https://bbb.joefix.it/bigbluebutton/
-heroku config:set BBB_SECRET=
-
-# Meeting ID can be retrieved by running `make list-meetings`
-heroku config:set BB_MEETING_ID="Demo Meeting"
+URL=https://bbb.joefix.it/bigbluebutton/
+SECRET=
+ID="Demo Meeting"
+TEST_DURATION=300
+LISTEN_ONLY=5
+MIC=0
+WEBCAM=1
 
-# Test parameters
-heroku config:set BBB_TEST_DURATION=60
-heroku config:set BBB_CLIENTS_LISTEN_ONLY=0
-heroku config:set BBB_CLIENTS_MIC=0
-heroku config:set BBB_CLIENTS_WEBCAM=3
+# BBB URL and secret can be retrieved by running bbb-conf --secret on the BBB server.
+heroku config:set BBB_URL=$URL BBB_SECRET=$SECRET BBB_MEETING_ID="$ID" BBB_TEST_DURATION=$TEST_DURATION BBB_CLIENTS_LISTEN_ONLY=$LISTEN_ONLY BBB_CLIENTS_MIC=$MIC BBB_CLIENTS_WEBCAM=$WEBCAM