Remove fixes that work around buggy behaviour

docs/tildagon-apps/development.md

@@ -36,12 +36,6 @@ class ExampleApp(app.App):
 __app_export__ = ExampleApp
 ```
 
-If you place this code in a file called `app.py`, you may also need to add a separate file called `__init__.py` containing this line:
-
-```python
-from .app import ExampleApp
-```
-
 To test the app, you can use the [simulator](./simulate.md) or [use `mpremote` to copy the app onto your real-life badge](#use-mpremote-to-test-an-app-on-your-badge). Once you're ready with development, you can [publish it](./publish.md) to the [app store](https://apps.badge.emfcamp.org/).
 
 ## The `App` class
@@ -426,13 +420,12 @@ You can also create your own user interfaces using the [`ctx` graphics library](
 
 You can test your app on-device, without publishing it, using [`mpremote`](https://docs.micropython.org/en/latest/reference/mpremote.html).
 
-1. Create a `metadata.json` file in your app's directory. This is necessary **only** during development. Remove this file before publishing your app to the app store. You may also need to specify a `callable` -- this should be the same as the name of your app's main class.
+1. Create a `metadata.json` file in your app's directory. This is necessary **only** during development. Remove this file before publishing your app to the app store.
 
     ```json
     {
         "name": "<app-name>",
-        "path": "apps.<folder-name>.app",
-        "callable": "ExampleApp"
+        "path": "apps.<folder-name>.app"
     }
     ```
 
@@ -441,8 +434,7 @@ You can test your app on-device, without publishing it, using [`mpremote`](https
     ```json
     {
         "name": "The OG Snake app",
-        "path": "apps.snake.app",
-        "callable": "SnakeApp"
+        "path": "apps.snake.app"
     }
     ```