diff --git a/README.md b/README.md
index f02eede..5bdd42e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
-# halfAPI
+# HalfAPI
+
+
 
 This Python-based ASGI application aims to provide the core functionality to
 multiple API domains.
@@ -6,57 +8,106 @@ multiple API domains.
 It's developed at the [LIRMM](https://lirmm.fr) in Montpellier, France.
 
 The name "halfAPI" comes from the deep relationship between it and
-[halfORM](https://gite.lirmm.fr/newsi/halfORM), a project authored by 
+[halfORM](https://gite.lirmm.fr/newsi/halfORM), a project authored by
 [Joël Maizi](https://gite.lirmm.fr/maizi).
 
+You'll need a database with the API details. You can find the database model in halfapi/models/api.sql
 
-## how-to
+With halfORM's "hop" command, we generate the models that describe the database from the database schema itself. You can find the details in [hop_api](https://gite.lirmm.fr/newsi/db/hop_api) repository.
+
+
+
+**NOTE : The authentication module is deeply linked with [auth_lirmm](https://gite.lirmm.fr/newsi/auth_lirmm), so if you need to use the acl.connected function, you will need a running auth_lirmm server to get a token.**
+
+**TODO :** include a token generation tool for testing purpose.
+
+
+
+## Dependencies
+
+- python3
+- python3-pip
+- python3-virtualenv
+
+
+### pip
+
+- poetry
+
+
+
+## Installing
 
 As the project uses the [poetry]() package manager, you first have to install it globally. It will replace virtualenv, pip, etc...
 
-`pip install poetry`
+
+`pip3 install poetry`
+
 
 Be sur to include the bin directory of pip in your PATH.
 
-
+### Virtual Environment (optional)
 Then, cd in the halfapi repo, and chose your python version :
 
-`poetry env use 3.8`
 
-- at this point, every time you come into the folder, when you launch something with "poetry run", it is launched within the virtual environment for this project -
+`POETRY_VIRTUALENV_PATH=$HOME/.pyvenv poetry env use 3.7`
+
+
+**NOTE : The virtualenv will be automatically be activated each time you run a command with the `poetry` tool. If you want to do it the classical way, or even without virtual environment, it's up to your choice.**
+
+
+Installation of the deps :
 
-And install the deps :
 
 `poetry install`
 
-If you need a domain, i.e: organigramme, just add *-E organigramme* avec *install*.
 
-`poetry install -E organigramme`
+If you need a domain, i.e: organigramme, just add `-E organigramme` to the command.
+
+
+**NOTE : You need to run `poetry install` before installing any domains (that depends on halfapi).**
+
+
+
+## API database
+
+Populate the API database with te server information, the domain's routes, and their ACL by running the following command :
+
+
+`poetry run halfapi dbupdate`
+
+
+**NOTE: You need to have the domain's package installed if you want to populate the api routes module, as it check for the existence of the acl functions.**
+
+
+### Database configuration
+
+The api and domains' databases connection settings are stored by default in `/etc/half_orm`. Check halfORM documentation for more information on how to write these configuration files.
+
+You can set the `HALFORM_SECRET` environment variable if you want to specify an authentication secret.
+
+
+**TODO :** find a modular way to configure the database connection for each mounted domain
+
+
+
+## Running
+
+
+### Development mode
+
+In the halfapi repository, type :
 
-Then, to run the server :
 
 `poetry run halfapi`
 
 
 If you need to launch the test suite (only works if you have pytest installed) :
 
+
 `poetry run pytest`
 
-# API database
 
-You just need to run the following command to insert the right data into the api database :
+### Production
 
-`poetry run halfapi dbupdate`
-
-# API database configuration
-
-You can set the HALFORM_SECRET and HALFORM_DSN variables to setup the way you connect to the API database.
-
-HALFORM_SECRET="wtfqwertz"
-HALFORM_DSN="dbname=api user=api password=api host=127.0.0.1 port=5432"
-
-## Warning
-
-For the domains' databases, for now the database connection string is hardcoded (check app.mount_domains).
-
-@TODO find a modular way to configure the database connection for each mounted domain
+The production server may use different init systems. As our main server is Debian-based, we use systemd services to manage the api server. Find the right service files and configure them properly in order to make your production setup perfect.