Add install and build info before first build

Signed-off-by: Jan-Christoph Borchardt <[email protected]>

README.md

@@ -1,18 +1,28 @@
 <p align="center">
-    <img src="https://raw.githubusercontent.com/keeporsweep/keeporsweep-desktop/master/images/icon-128.png" height="64">
-    <h3 align="center">Keep or Sweep</h3>
-    <p align="center">Randomly clean data off your computer!<p>
+    <img src="https://raw.githubusercontent.com/keeporsweep/keeporsweep-desktop/master/images/icon-256.png" height="128">
 </p>
+<h3 align="center">Keep or Sweep</h3>
+<p align="center">Randomly clean data off your computer!<p>
+<p align="center">
+    <img src="https://raw.githubusercontent.com/keeporsweep/keeporsweep-desktop/master/images/screenshot.png" height="500">
+</p>
+
+
 
+## Install
 
-## Info
+This is the desktop version for ⊞Windows, 🍏macOS & 🐧Linux. We are still preparing easy-to-launch apps for the platforms. Meanwhile check out the development setup to get the app running.
 
-This is the desktop version for Windows, macOS & Linux. There’s also a [Nextcloud app](https://github.com/keeporsweep/keeporsweep), and more info at [keeporsweep.net](http://keeporsweep.net).
+There’s also a [☁️Nextcloud app](https://github.com/keeporsweep/keeporsweep), and more info at [🔀keeporsweep.net](http://keeporsweep.net).
 
-![](images/screenshot.png)
 
 
-## Installation
+## Contribute
+
+Contributions are always welcome! 😍 Check out the [list of issues](https://github.com/keeporsweep/keeporsweep-desktop/issues) and see what you like to contribute.
+
+
+### Development setup
 
 1. Install the dependencies: We need [Pillow](https://pillow.readthedocs.io/en/latest/installation.html) (Python library for image handling) and [Send2Trash](https://github.com/hsoft/send2trash) (to move files to trash cross-platform instead of permanently removing them). Type these commands in a terminal window:
 ```
@@ -22,3 +32,18 @@ pip3 install Send2Trash
 ```
 2. Make `keeporsweep.py` executable by right-click → Properties → Allow executing file as program. (Or in the terminal with `chmod +x keeporsweep.py`)
 3. Then place `keeporsweep.py` in any folder and click it! 🎉 (Or in the terminal run `python3 keeporsweep.py`)
+
+
+### Building an executable app
+
+1. Install [PyInstaller](https://www.pyinstaller.org/) via terminal:
+```
+pip3 install pyinstaller
+```
+2. Then use this command to build the application for your operating system:
+```
+pyinstaller --name="Keep or Sweep" --onefile --noconsole --icon="images/icon.ico" --clean keeporsweep.py
+```
+(Use icon.icns when building on macOS)
+
+In case the icon was changed, we need to generate those again. Windows .ico uses the 256px icon and can be saved using [GIMP](https://www.gimp.org/), macOS .icns uses icons ranging from 16px to 1024px and can be generated using [png2icns](https://dentrassi.de/2014/02/25/creating-mac-os-x-icons-icns-on-linux/).

keeporsweep.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# 💻🔀🗑️ Keep or Sweep
+# 💻🔀🗑️ Keep or Sweep, v0.1.0 for desktop
 # Show a random file so you can clean your stuff
 # Simply make executable and click (or run as python3 keeporsweep.py)
 # http://keeporsweep.net