feat: remove kivy python dependency, require system dependency in the readme

README.md

@@ -1,17 +1,27 @@
 Negro Mate Karaoke
 ==================
 
-Simple karaoke bideo browser.
+Simple karaoke video browser.
+
+This module provides one extra command to negromate:
+
+    negromate karaoke: GUI for negromate karaoke
+
+
+Uses Kivy, a fairly large python library. It could be more easy to install this
+package if Kivy is already installed in the system.
+
+VLC is also used to play the songs.
+
+Needs the following packages installed:
+
+ * python3-kivy (at least version 2.1.0)
+ * vlc
 
-Uses kivy, installation instructions here: https://kivy.org/doc/stable/installation/installation-devel.html
 
 Usage
 -----
 
-Launch:
-
-    negromate karaoke 
-
 Keyboard shortcuts:
 
 - A: Previous song
@@ -19,21 +29,3 @@ Keyboard shortcuts:
 - D: Next song
 
 The songs are played with vlc, so to exit a playing song: `Ctrl-C`.
-
-
-Install Mini-howto
-------------------
-Instalation uses the pep517 packaging format, whichs requires pip version
-19 or newer.
-
-    pip install "pip>=19"
-
-Install dependencies for Kivy:
-
-    apt-get install python3-dev python-setuptools python-pygame python-opengl \
-      python-enchant python-dev build-essential python-pip libgl1-mesa-dev \
-      libgles2-mesa-dev zlib1g-dev
-
-Install this package
-
-    pip install .

negromate/karaoke/karaoke.py

@@ -3,7 +3,7 @@ import os
 import subprocess
 
 import kivy
-kivy.require('2.0.0')
+kivy.require('2.1.0')
 
 from kivy.app import App
 from kivy.core.text import LabelBase

requirements.txt

@@ -1,2 +1 @@
-Kivy==2.0.0
 negromate.songs==1.4

setup.cfg

@@ -22,7 +22,6 @@ packages = find_namespace:
 zip_safe = false
 python_requires = >= 3.4
 install_requires =
-    kivy
     negromate.songs ==1.4
 
 [options.entry_points]