Add contributors documentations

docs/contributors/environment.rst

@@ -0,0 +1,39 @@
+Development environment
+=======================
+
+Docker containers
+-----------------
+
+The development environment is quite similar to the production one. You should always use
+the ``testing`` version when developping. Simply uncomment the ``build`` directive on
+containers that you are working on and run:
+
+.. code-block:: bash
+
+  docker-compose build
+
+whenever you want to re-build them.
+
+Web administration
+------------------
+
+The administration Web interface requires a proper dev environment that can easily be setup using ``virtualenv`` (make sure you are using Python 3) :
+
+.. code-block:: bash
+
+  cd admin
+  virtualenv .
+  source bin/activate
+  pip install -r requirements.txt
+
+You can then export the path to the development database (use four slashes for absolute path):
+
+.. code-block:: bash
+
+  export SQLALCHEMY_DATABASE_URI=sqlite:///path/to/dev.db
+
+And finally run the server with debug enabled:
+
+.. code-block:: bash
+
+  python manage.py runserver