M4lF3s/README.md

## README.md

      
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              README.md
            
          
    Initial Setup


Flash SD Card (use official Raspbian Imager -> saves you the hassle to Setup Wifi, Pi User, etc. headless)
Insert and Boot
Run sudo raspi-config and expand the FileSystem
Update with
sudo apt-get update
sudo apt-get upgrade

If asked for what to do with modified sshd config, choose: keep the local version currently installed
Reboot


Python Setup with PyEnv and virtualenv


Install Git
sudo apt-get install git

Run PyEnv Installer Script and Setup Environment
curl https://pyenv.run | bash
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
echo 'command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(pyenv init -)"' >> ~/.bashrc
echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.bashrc
exec "$SHELL"

Install Prerequisites for Python 3.9 Installation through PyEnv
sudo apt-get install build-essential zlib1g-dev libffi-dev libssl-dev libbz2-dev libreadline-dev libsqlite3-dev liblzma-dev

Install Python 3.9
pyenv install 3.9.13

Create virtualenv for development
pyenv virtualenv 3.9.13 venv39


Compiling SDL from Source for Kivy


Install Prerequisites for Kivy
sudo apt install pkg-config libgl1-mesa-dev libgles2-mesa-dev \
libgstreamer1.0-dev \
gstreamer1.0-plugins-{bad,base,good,ugly} \
gstreamer1.0-alsa libmtdev-dev \
xclip xsel libjpeg-dev

Install Prerequisites for SDL2
sudo apt-get install libfreetype6-dev libgl1-mesa-dev libgles2-mesa-dev libdrm-dev libgbm-dev libudev-dev libasound2-dev liblzma-dev libjpeg-dev libtiff-dev libwebp-dev git build-essential

sudo apt-get install gir1.2-ibus-1.0 libdbus-1-dev libegl1-mesa-dev libibus-1.0-5 libibus-1.0-dev libice-dev libsm-dev libsndio-dev libwayland-bin libwayland-dev libxi-dev libxinerama-dev libxkbcommon-dev libxrandr-dev libxss-dev libxt-dev libxv-dev x11proto-randr-dev x11proto-scrnsaver-dev x11proto-video-dev x11proto-xinerama-dev

Install SDL2
wget https://libsdl.org/release/SDL2-2.0.22.tar.gz
tar -zxvf SDL2-2.0.22.tar.gz
pushd SDL2-2.0.22
./configure --enable-video-kmsdrm --disable-video-opengl --disable-video-x11 --disable-video-rpi
Output of ./configure ... should be someting like:
...
Enabled modules : atomic audio video render events joystick haptic hidapi sensor power filesystem threads timers file misc locale loadso cpuinfo assembly
Assembly Math   :
Audio drivers   : disk dummy oss alsa(dynamic) sndio(dynamic)
Video drivers   : dummy kmsdrm(dynamic) opengl_es1 opengl_es2 vulkan wayland(dynamic)
Input drivers   : linuxev linuxkd
Enable virtual joystick APIs : YES
Using libsamplerate : NO
Using libudev       : YES
Using dbus          : YES
Using ime           : YES
Using ibus          : YES
Using fcitx         : YES

Now Compile and Install
make -j4
sudo make install
popd

Install SDL2_image
wget https://libsdl.org/projects/SDL_image/release/SDL2_image-2.0.5.tar.gz
tar -zxvf SDL2_image-2.0.5.tar.gz
pushd SDL2_image-2.0.5
./configure
make -j4
sudo make install
popd

Install SDL2_mixer
wget https://github.com/libsdl-org/SDL_mixer/releases/download/release-2.6.1/SDL2_mixer-2.6.1.tar.gz
tar -zxvf SDL2_mixer-2.6.1.tar.gz
pushd SDL2_mixer-2.6.1
./configure
make -j4
sudo make install
popd

Install SDL2_ttf
wget https://github.com/libsdl-org/SDL_ttf/releases/download/release-2.20.0/SDL2_ttf-2.20.0.tar.gz
tar -zxvf SDL2_ttf-2.20.0.tar.gz
pushd SDL2_ttf-2.20.0
./configure
make -j4
sudo make install
popd

Update dynamic libraries cache
sudo ldconfig -v


Compile Kivy from source


Change into a Project Directory


Set Python Env to Virtualenv created above
pyenv local venv39


Upgrade Python libraries
python -m pip install --upgrade pip setuptools


Install Kivy 2.1.0 from source
python -m pip install "kivy[base] @ https://github.com/kivy/kivy/archive/023bd79b90f9831b45bb8eb449346648aa5fe5f8.zip"


Test Everything with a simple HelloWorld Program:
main.py
from kivy.app import App
from kivy.uix.label import Label


class MainApp(App):
    def build(self):
        return Label(text="Hello, World")


MainApp().run()


Run it with
python main.py