* `calculator` implements the portable graphical interface using the _app.nit_ framework
* `calculator_test` test `CalculatorContext` as a black box.
-# Usage
+# Compilation
-1. Compile with a call to `make`.
-2. Run with either:
- 1. The desktop version, `bin/calculator`.
- 2. The Android version by install the APK at `bin/calculator.apk`.
+* Compile and run on the desktop (GNU/Linux and OS X) with:
+
+ ~~~
+ make
+ bin/calculator
+ ~~~
+
+* Compile for Android and install on a device or emulator with:
+
+ ~~~
+ make bin/android.apk
+ adb install -r bin/calculator.apk
+ ~~~
+
+* Compile for iOS and run on the simulator with:
+
+ ~~~
+ make bin/android.app
+ ios-sim launch bin/calculator.app
+ ~~~