diff --git a/README.md b/README.md
index 66738b3..ade4038 100644
--- a/README.md
+++ b/README.md
@@ -18,40 +18,59 @@ Tested with a standard 3rd party `oauth2_provider` Django application from
 
 Supported Versions
 ------------------
-Python 2.7 and Django 1.11,
-Python 3.7 and Django 2.2
+- Python 2.7 and Django 1.11
+- Python 3.7 and Django 2.2
+- PostgreSQL >= 9.6.9
+
+Other versions may likely work too, but are not supported.
 
 Python and Django compatibility is maintained in `compat.py` and `test_compat.py`
 
-Quick Start
------------
+### Installation
+-------------
+#### Extras
+As of version `0.2.0` this project provides two extras, `JWT_grant` and `oauth2provider_command`:
+- `JWT_grant` - enables JWT grant type support, used e.g. by Salesforce. See
+[RFC](https://tools.ietf.org/html/rfc7523)
+- `oauth2provider_command` - enables `oauth2_provider.Application` creation by means of
+an `oauth2provider_app` Django management command
+
+Vanilla install, without extras, makes you able to:
+- talk to systems that use `client-credentials` grant type
 
-0. In requirements, add `pip install git+https://git@github.com/Livit/Labster.OAuth2Client.git@0.1.3`
+#### Steps
+-----
+1. In requirements, add `git+https://git@github.com/Livit/Labster.OAuth2Client.git@0.2.0` or
+`git+ssh://git@github.com/Livit/Labster.OAuth2Client.git@0.2.0#egg=oauth2-client[JWT_grant,oauth2provider_command]`,
+depending on if you need the extras
 
-1. Add "oauth2_client" to your INSTALLED_APPS setting like this:
+2. Add "oauth2_client" to your INSTALLED_APPS settings. If you installed also `oauth2provider_command`
+extras, you have to add also `oauth2_provider`
 
 ```
     INSTALLED_APPS = [
         ...
+        'oauth2_provider',  # only for `providerApp` extras
         'oauth2_client',
     ]
 ```
 
-2. Run migrate to create the oauth2_client models.
-
-3. On the receiver side, create Application model and fill with proper data:
+3. Run `python manage.py migrate` to create oauth2_client models.
 
+4. On the receiver side, create Application model and fill with proper data, e.g.:
+```
     {
         name="Client name",
         redirect_uris="http://localhost",  # for local development
         client_type=Application.CLIENT_CONFIDENTIAL,
         authorization_grant_type=Application.GRANT_CLIENT_CREDENTIALS,
     }
+```
 
-4. On the client side, create oauth2_client.Application model instance, and
+5. On the client side, create `oauth2_client.Application` model instance, and
 populate it. You can get help by calling `python manage.py oauth2client_app -h`.
 
-5. Instantiate the client via library calls, and use it for all api calls.
+6. Instantiate the client via library calls, and use it for all api calls.
 
 
 Tests and Development
diff --git a/setup.py b/setup.py
index fa599e8..9ea2dcb 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,5 @@
 import os
+
 from setuptools import find_packages, setup
 
 with open(os.path.join(os.path.dirname(__file__), 'README.md')) as readme:
@@ -27,8 +28,25 @@
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
         'Topic :: Internet :: WWW/HTTP',
         'Topic :: Internet :: WWW/HTTP :: Dynamic Content',
     ],
+    install_requires=[
+        'django>=1.11.17,<=1.11.24;python_version=="2.7"',
+        'django>=2.2;python_version>="3.7"',
+        'psycopg2 >= 2.7.3',
+        'pybreaker>=0.6.0',
+        'requests_oauthlib>=1.2.0',
+        'retrying>=1.3.3',
+    ],
+    extras_require={
+        "oauth2provider_command": [
+            'django-oauth-toolkit==1.0.0;python_version=="2.7"',
+            'django-oauth-toolkit>=1.2.0;python_version>="3.7"',
+        ],
+        "JWT_grant": [
+            'cryptography>=2.8',
+        ],
+    }
 )