Update firstinterhacktions.md: add hatchery instructions

en/firstinterhacktions.md

@@ -53,6 +53,21 @@ The first number entered is the index for selecting the r0ket LED. You can choos
 
 ## Using card10 in USB storage mode
 
+TODO: this is how you can turn your commands into a python script and add it to the card10
+
+## Adding your app to the hatchery
+
+Once you have a nice app that runs on your card10, you can share it with the rest of the world by adding it to the hatchery. 
+If your app is not quite ready yet, but you want to share it, you can also add it the hatchery and keep it unpublished.
+Additionally, the hatchery is a great place to have a look at other people's apps and learn how they implemented their ideas!
+
+Go to the [hatchery](https://badge.team/?badge=card10), register an account, and choose the badge model card10.
+Klick on 'Add' to create an egg for your app in the hatchery.  Pick a category, select _card10_ for the compatibility, and add a title and description.
+You can even use libraries from existing apps, which you can add as dependencies in the next menu.
+
+Your app comes with an empty `__init__.py` file, this is needed by python. You can then upload your script file(s) in addition to it.
+Once you are satisfied, you can publish it in an official revision. As you improve your code, you can re-upload your files and publish new versions.
+
 ### Closing a session
 To close a session in screen, press `Ctrl+A` then `k` then `y`.  In picocom, exit using `Ctrl+A`, then `Ctrl+Q`.