diff --git a/README.md b/README.md
index 67ccb5a..520a884 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,6 @@ Addok plugin to store documents in SQLite instead of Redis to reduce memory usag
 
 - **SQLite storage**: Store documents in a SQLite database instead of Redis
 - **Memory optimization**: Reduce Redis RAM usage for large datasets
-- **Automatic registration**: Plugin registers itself when installed
 
 ## Installation
 
@@ -16,11 +15,23 @@ pip install addok-sqlite-store
 
 ## Configuration
 
-The plugin will register itself when installed, by setting the correct
-`DOCUMENT_STORE_PYPATH`.
+Add the following to your Addok configuration file to activate the plugin:
 
-Define the path where the SQLite database will be created:
+```python
+# Use SQLite as document store
+DOCUMENT_STORE_PYPATH = 'addok_sqlite_store.SQLiteStore'
+```
+
+The SQLite database will be created at `addok.db` by default. You can customize the path:
 
 ```python
-SQLITE_DB_PATH = "/path/to/your/database.db"
+# Optional: customize the database path
+SQLITE_DB_PATH = '/path/to/your/database.db'
+```
+
+Or use environment variables:
+
+```bash
+export ADDOK_DOCUMENT_STORE_PYPATH='addok_sqlite_store.SQLiteStore'
+export ADDOK_SQLITE_DB_PATH='/path/to/your/database.db'  # optional
 ```
diff --git a/addok_sqlite_store/__init__.py b/addok_sqlite_store/__init__.py
index e512a8d..dc72b77 100644
--- a/addok_sqlite_store/__init__.py
+++ b/addok_sqlite_store/__init__.py
@@ -11,7 +11,10 @@ def __init__(self, *args, **kwargs):
         self.init()
 
     def init(self):
-        self.conn = sqlite3.connect(os.environ.get('SQLITE_DB_PATH') or config.SQLITE_DB_PATH)
+        self.db_path = (os.environ.get('ADDOK_SQLITE_DB_PATH') or 
+                        os.environ.get('SQLITE_DB_PATH') or 
+                        config.SQLITE_DB_PATH)
+        self.conn = sqlite3.connect(self.db_path)
         self.lock = Lock()
         with self.conn as conn:
             conn.execute('CREATE TABLE IF NOT EXISTS '
@@ -45,10 +48,9 @@ def remove(self, *keys):
         self.lock.release()
 
     def flushdb(self):
-        os.unlink(config.SQLITE_DB_PATH)
+        os.unlink(self.db_path)
         self.init()
 
 
 def preconfigure(config):
-    config.DOCUMENT_STORE_PYPATH = 'addok_sqlite_store.SQLiteStore'
     config.SQLITE_DB_PATH = 'addok.db'