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+# Freedom Units!
+
+This is a demo Toga app implementing a Fahrenheit to Celsius converter.
+
+## Initial setup
+
+1. Create and activate a virtual environment:
+
+       $ python -m venv venv
+       $ . ./venv/bin/activate
+
+2. Install the demo requirements:
+
+       $ pip install -r requirements.txt
+
+### Development details
+
+This demo bakes a pre-compiled version of pyscript into the `server/pyscript`
+directory.
+
+It also includes an experimental version of toga-core, toga-web and toga-flask,
+packaged as wheels in the `server/wheels` directory.
+
+If any changes are made to the Toga sources or to PyScript, these vendored
+resources will need to be updated.
+
+## Web app
+
+The web app is a demo Flask server, serving a web app version of Toga at the
+root URL. To run the web demo server:
+
+    $ cd server
+    $ PYTHONPATH=../freedom/src python -m demo
+
+then point your browser at http://localhost:8081/
+
+Enter a value in the "farenheit" input, and click the "calculate" button.
+
+It may take a few seconds for this button to become live; look for the
+"Collecting nodes..." entry in the console log.
+
+## Desktop app
+
+To run this app in development mode:
+
+    $ briefcase dev
+
+To build and run an app bundle:
+
+    $ briefcase run
+
+If you're on an M1 macOS, this will raise an error on first run; if you get this error, run:
+
+    $ briefcase package -p app --adhoc-sign
+
+then re-run `briefcase run`
+
+## iOS app
+
+To run this in the iOS simulator, run:
+
+    $ briefcase run iOS
+
+To run this in the Android simulator, run:
+
+    $ briefcase run android
+
+Note that these builds have extensive requirements that must be installed -
+Xcode for iOS, and the Android SDKs for Android. These are multiple gigabyte
+downloads. Briefcase will detect when these tools aren't available, and either
+prompt you to download them, or perform a download for you. As a result, your
+first build may take up to 20 minutes to complete, depending on the speed of
+your conection.
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+#!/bin/sh
+
+mkdir -p ../server/static/wheels
+cd src
+unzip ../base-wheel.zip
+zip ../../server/static/wheels/freedom-0.0.1-py3-none-any.whl -r freedom*
+rm -rf freedom-0.0.1.dist-info
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+[build-system]
+requires = ["briefcase"]
+
+[tool.briefcase]
+project_name = "Freedom Units"
+bundle = "org.beeware"
+version = "0.0.1"
+url = "https://beeware.org"
+license = "BSD license"
+author = 'Tiberius Yak'
+author_email = "tiberius@beeware.org"
+
+[tool.briefcase.app.freedom]
+formal_name = "Freedom Units"
+description = "A testing app"
+sources = ['src/freedom']
+requires = [
+    '../server/static/wheels/toga_core-0.3.0.dev33-py3-none-any.whl',
+    '../server/static/wheels/travertino-0.1.3-py3-none-any.whl',
+]
+
+
+[tool.briefcase.app.freedom.macOS]
+requires = [
+    'git+https://github.com/beeware/toga.git#egg=toga-cocoa&subdirectory=src/cocoa',
+    'std-nslog>=1.0.0',
+]
+
+[tool.briefcase.app.freedom.linux]
+requires = [
+    'git+https://github.com/beeware/toga.git#egg=toga-gtk&subdirectory=src/gtk',
+]
+
+[tool.briefcase.app.freedom.windows]
+requires = [
+    'git+https://github.com/beeware/toga.git#egg=toga-winforms&subdirectory=src/winforms',
+]
+
+# Mobile deployments
+[tool.briefcase.app.freedom.iOS]
+requires = [
+    'git+https://github.com/beeware/toga.git#egg=toga-iOS&subdirectory=src/iOS',
+    'std-nslog>=1.0.0',
+]
+
+[tool.briefcase.app.freedom.android]
+requires = [
+    'git+https://github.com/beeware/toga.git#egg=toga-android&subdirectory=src/android',
+]
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+from freedom.app import main
+
+print("IN FREEDOM", main)
+
+if __name__ == '__main__':
+    main().main_loop()
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+
+import toga
+from toga.style.pack import LEFT, RIGHT, COLUMN, ROW, Pack
+
+
+class FreedomApp(toga.App):
+    def calculate(self, widget):
+        try:
+            self.c_input.value = (float(self.f_input.value) - 32.0) * 5.0 / 9.0
+        except ValueError:
+            self.c_input.value = '???'
+
+    def startup(self):
+        self.main_window = toga.MainWindow(title=self.name)
+
+        c_box = toga.Box()
+        f_box = toga.Box()
+        box = toga.Box()
+
+        self.c_input = toga.TextInput(id="c_input", readonly=True)
+        self.f_input = toga.TextInput(id="f_input")
+
+        c_label = toga.Label('Celsius', style=Pack(text_align=LEFT))
+        f_label = toga.Label('Fahrenheit', style=Pack(text_align=LEFT))
+        join_label = toga.Label('is equivalent to', style=Pack(text_align=RIGHT))
+
+        button = toga.Button('Calculate', id="calculate", on_press=self.calculate)
+
+        f_box.add(self.f_input)
+
+        c_box.add(join_label)
+        c_box.add(self.c_input)
+        c_box.add(c_label)
+
+        box.add(f_box)
+        box.add(c_box)
+        box.add(button)
+
+        box.style.update(direction=COLUMN, padding_top=10)
+        f_box.style.update(direction=ROW, padding=5)
+        c_box.style.update(direction=ROW, padding=5)
+
+        self.c_input.style.update(flex=1)
+        self.f_input.style.update(flex=1, padding_left=160)
+        c_label.style.update(width=100, padding_left=10)
+        f_label.style.update(width=100, padding_left=10)
+        join_label.style.update(width=150, padding_right=10)
+
+        button.style.update(padding=15, flex=1)
+
+        self.main_window.content = box
+        self.main_window.show()
+
+
+def main():
+    return FreedomApp('Freedom Units', 'org.beeware.freedom')
+
+
+if __name__ == '__main__':
+    main().main_loop()
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+setuptools
+wheel
+check-manifest
+briefcase
+flask==2.1.1
+server/static/wheels/toga_core-0.3.0.dev33-py3-none-any.whl
+server/static/wheels/toga_flask-0.3.0.dev33-py3-none-any.whl
+server/static/wheels/toga_web-0.3.0.dev33-py3-none-any.whl
+server/static/wheels/travertino-0.1.3-py3-none-any.whl
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+from flask import Flask
+
+from toga_flask import TogaApp
+
+from freedom import app as freedom
+
+app = Flask(__name__)
+
+app.add_url_rule('/', view_func=TogaApp.as_view("foo", app_module=freedom))
+
+
+if __name__ == '__main__':
+    app.run(port=8081, debug=True)