Developing-on-apps-test.awesim.org.md

@@ -29,10 +29,24 @@ fi
 
 Note that we now use Ruby 2.2.2 (instead of Ruby 2.0.0).
 
-#### 3. Access https://apps-test.awesim.org for accessing and testing apps
+#### 3. Install gems of an app in `vendor/bundle`
+
+Gems are no longer system installed. All the gems your app requires should be installed with the app by running:
+
+```
+bin/bundle install --path vendor/bundle
+```
+
+This will install all the gems from GitHub or rubygems.org into `$APPROOT/vendor/bundle`
+
+#### 4. Dev apps are at ~/awesim/dev and shared apps are at ~/awesim/share
+
+Dev apps are any directory under ~/awesim/dev. You don't need to name the directories "rails#" anymore.
+
+#### 5. Access https://apps-test.awesim.org for accessing and testing apps
 
 Use this until apps.awesim.org is switched over
 
-#### 4. The web hosts are isolated from the clusters
+#### 6. The web hosts are isolated from the clusters
 
 The web hosts have access to project space and the user home directories, but not to software installed on Oakley or Ruby or access to the module system.
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