diff --git a/.gitignore b/.gitignore
index 9be4aa0..1c5efe0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,4 +40,6 @@ nosetests.xml
 # Virtualenv
 venv/
 
-.idea
\ No newline at end of file
+.idea/
+
+site/
\ No newline at end of file
diff --git a/README.md b/README.md
index af41f6a..e50965c 100644
--- a/README.md
+++ b/README.md
@@ -24,14 +24,17 @@ This library requires **Python 3.6** or higher. To compile it by yourself, Cytho
 ### Using Pip
 * `pip3 install pyquadkey2`
 
-Currently, there are pre-built `linux_x86_64` for Python 3.6, 3.7 and 3.8. If you're on a Linux system, you can simply use pip without any additional requirements.
-On other systems, you might need to install Cython first (`pip3 install cython`). If you encounter problems while installing, please report them as a new issue.
-
-### From Source
-* `git clone https://github.com/n1try/pyquadkey2`
-* `pip3 install cython`
-* `cd pyquadkey2/quadkey/tilesystem && python3 setup.py build_ext --inplace && ../../`
-* `pip3 install .`
+If you encounter problems while installing, please report them as a new issue.
+
+### From archive
+* Download the latest [release](https://github.com/n1try/pyquadkey2/releases) as archive (`.tar.gz`) or wheel (`.whl`), e.g. `0.1.1.tar.gz`
+* Install it with pip: `pip3 install 0.1.1.tar.gz`
+
+### From source
+* Clone repository: `git clone https://github.com/n1try/pyquadkey2`
+* Make sure Cython is installed: `pip3 install cython`
+* Compile Cython modules: `cd pyquadkey2/quadkey/tilesystem && python3 setup.py build_ext --inplace && ../../`
+* Install the library with Pip: `pip3 install .`
 
 ### Troubleshooting
 * `ImportError: cannot import name 'tilesystem'`: Simply try `pip3 install --upgrade pyquadkey2` once again. Second time usually works, as required build extensions are installed then. This is a known issue and will be fixed in the future.
diff --git a/docs/installation.md b/docs/installation.md
index 4f37639..bc41d7c 100644
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -1,17 +1,22 @@
+# Installation
+
 ## Requirements
 This library requires **Python 3.6** or higher. To compile it by yourself, Cython is required in addition.
 
 ## Using Pip
 * `pip3 install pyquadkey2`
 
-Currently, there are pre-built `linux_x86_64` for Python 3.6, 3.7 and 3.8. If you're on a Linux system, you can simply use pip without any additional requirements.
-On other systems, you might need to install Cython first (`pip3 install cython`). If you encounter problems while installing, please report them as a new issue.
+If you encounter problems while installing, please report them as a new issue.
+
+## From archive
+* Download the latest [release](https://github.com/n1try/pyquadkey2/releases) as archive (`.tar.gz`) or wheel (`.whl`), e.g. `0.1.1.tar.gz`
+* Install it with pip: `pip3 install 0.1.1.tar.gz`
 
-## From Source
-* `git clone https://github.com/n1try/pyquadkey2`
-* `pip3 install cython`
-* `cd pyquadkey2/quadkey/tilesystem && python3 setup.py build_ext --inplace && ../../`
-* `pip3 install .`
+## From source
+* Clone repository: `git clone https://github.com/n1try/pyquadkey2`
+* Make sure Cython is installed: `pip3 install cython`
+* Compile Cython modules: `cd pyquadkey2/quadkey/tilesystem && python3 setup.py build_ext --inplace && ../../`
+* Install the library with Pip: `pip3 install .`
 
 ## Troubleshooting
-* `ImportError: cannot import name 'tilesystem'`: Simply try `pip3 install --upgrade pyquadkey2` once again. Second time usually works, as required build extensions are installed then. This is a known issue and will be fixed in the future.
\ No newline at end of file
+* `ImportError: cannot import name 'tilesystem'`: Simply try `pip3 install --upgrade pyquadkey2` once again. Second time usually works, as required build extensions are installed then. This is a known issue and will be fixed in the future.
diff --git a/docs/instantiation.md b/docs/instantiation.md
index 5b5c252..5d4168f 100644
--- a/docs/instantiation.md
+++ b/docs/instantiation.md
@@ -1,19 +1,36 @@
+# Instantiation
+
 There are **three ways** of instantiating a QuadKey.
 
 ## From string representation
+Creates a new `QuadKey` object from a tile's string representation.
+
 `from_str(qk_str: str) -> 'QuadKey'`
 
 **Example:**
-```
+```python
 import quadkey
 qk = quadkey.from_str('010302121')                  # -> 010302121
 ```
 
 ## From integer representation
+Creates a new `QuadKey` object from a tile's integer representation
+
 `from_int(qk_int: int) -> 'QuadKey'`
 
 **Example:**
-```
+```python
 import quadkey
 qk = quadkey.from_int(1379860704579813385)          # -> 010302121
+```
+
+## From coordinates
+Creates a new `QuadKey` object from geo / GNSS coordinates
+
+`from_geo(geo: Tuple[float, float], level: int) -> 'QuadKey'`
+
+**Example:**
+```python
+import quadkey
+qk = quadkey.from_geo((49.011011, 8.414971), 9)     # -> 120203233
 ```
\ No newline at end of file
diff --git a/docs/methods.md b/docs/methods.md
index 76e3821..e38edf8 100644
--- a/docs/methods.md
+++ b/docs/methods.md
@@ -1,3 +1,5 @@
+# Methods
+
 ## children
 `children(self, at_level: int = -1) -> List['QuadKey']`
 
diff --git a/quadkey/__init__.py b/quadkey/__init__.py
index ce2f3ac..207a99b 100644
--- a/quadkey/__init__.py
+++ b/quadkey/__init__.py
@@ -3,7 +3,11 @@
 from enum import IntEnum
 from typing import Tuple, List, Iterable, Generator, Dict
 
-from .tilesystem import tilesystem
+try:
+    from pyquadkey2 import tilesystem
+except ModuleNotFoundError:
+    from .tilesystem import tilesystem
+
 from .util import precondition
 
 LAT_STR: str = 'lat'
diff --git a/setup.py b/setup.py
index 5080e68..a56c7e0 100644
--- a/setup.py
+++ b/setup.py
@@ -1,39 +1,41 @@
 #!/usr/bin/env python
 # https://packaging.python.org/tutorials/packaging-projects/
-import os
+# python3 setup.py sdist bdist_wheel
+# python3 -m twine upload --repository-url https://test.pypi.org/legacy/ dist/*.tar.gz
+# mkdocs build
 
+from setuptools import Extension
 from setuptools import setup, find_packages
-from setuptools.glob import glob
 
-try:
-    from Cython.Distutils.extension import Extension
-    from Cython.Build import build_ext
-except ImportError:
-    from setuptools import Extension
-
-    USING_CYTHON = False
-else:
-    USING_CYTHON = True
-
-ext = 'pyx' if USING_CYTHON else 'c'
-sources = glob('quadkey/tilesystem/*.%s' % (ext,))
-extensions = [Extension(source.split('.')[0].replace(os.path.sep, '.'), sources=[source]) for source in sources]
-cmdclass = {'build_ext': build_ext} if USING_CYTHON else {}
+with open('README.md', 'r') as fh:
+    long_description = fh.read()
 
 setup(
     name='pyquadkey2',
-    version='0.1.0',
+    version='0.1.1',
     description='Python implementation of geographical tiling using QuadKeys as proposed by Microsoft',
+    long_description=long_description,
+    long_description_content_type='text/markdown',
     author='Ferdinand Mütsch',
     author_email='ferdinand@muetsch.io',
     url='https://github.com/n1try/pyquadkey2',
     packages=find_packages(),
+    classifiers=[
+        'Development Status :: 4 - Beta',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Cython',
+        'License :: OSI Approved :: Apache Software License',
+        'Operating System :: OS Independent',
+        'Natural Language :: English',
+        'Topic :: Scientific/Engineering :: GIS',
+        'Typing :: Typed'
+    ],
     project_urls={
         'Bug Tracker': 'https://github.com/n1try/pyquadkey2/issues',
         'Source Code': 'https://github.com/n1try/pyquadkey2',
     },
     keywords='tiling quadkey quadtile geospatial geohash',
     python_requires='>=3.6',
-    ext_modules=extensions,
-    cmdclass=cmdclass
+    ext_modules=[Extension('tilesystem', ['quadkey/tilesystem/tilesystem.c'])],
+    ext_package='pyquadkey2'
 )