diff --git a/README.md b/README.md
index 41c12ad..85bbdf8 100644
--- a/README.md
+++ b/README.md
@@ -19,10 +19,10 @@ python exporter.py
 
 ## Configuration
 
-Currently, the exporter can only be configured by modifying the source code. The following variables can be changed:
+The exporter can be configured using environment variables or command line arguments.
 
-- `PINS_DIR`: The directory where the CryptPad pins are stored. Default: `/srv/cryptpad/data/pins`
-- `PORT`: The port the exporter listens on. Default: `8000`
+- `PINS_DIR`/`--pins-dir`: The directory where the CryptPad pins are stored. Default: `/srv/cryptpad/data/pins`
+- `PORT`/`--port`: The port the exporter listens on. Default: `8000`
 
 ## License
 
diff --git a/exporter.py b/exporter.py
index 13db130..9ba5684 100644
--- a/exporter.py
+++ b/exporter.py
@@ -1,22 +1,26 @@
 import os
+from argparse import ArgumentParser
 from prometheus_client import start_http_server, Gauge
 import time
 
 # Configuration (replace with your actual path)
-PINS_DIR = '/srv/cryptpad/data/pins/'
+PINS_DIR = "/srv/cryptpad/data/pins/"
 PORT = 8000
 
 # Prometheus metric
-registered_users_gauge = Gauge('cryptpad_registered_users', 'Number of registered users')
+registered_users_gauge = Gauge(
+    "cryptpad_registered_users", "Number of registered users"
+)
 
-def count_registered_users(pins_dir: os.PathLike) -> int:
-    """Returns the number of registered users by counting the number of folders in the user data directory
 
-    This emulates the way CryptPad counts registered users in the admin dashboard, see: 
+def count_registered_users(pins_dir: os.PathLike = PINS_DIR) -> int:
+    f"""Returns the number of registered users by counting the number of folders in the user data directory
+
+    This emulates the way CryptPad counts registered users in the admin dashboard, see:
     https://github.com/cryptpad/cryptpad/blob/7dbec1bd25b46e514ba82adad209961627410025/lib/commands/admin-rpc.js#L105
 
     Args:
-        pins_dir (os.PathLike): Path to the user pins directory (e.g. /srv/cryptpad/data/pins/)
+        pins_dir (os.PathLike): Path to the user pins directory (default: {PINS_DIR})
 
     Returns:
         int: Number of registered users
@@ -33,22 +37,46 @@ def count_registered_users(pins_dir: os.PathLike) -> int:
         print(f"Error counting registered users: {e}")
         return 0
 
-def update_metrics():
-    """Update the Prometheus metrics with the current number of registered users"""
-    user_count = count_registered_users(PINS_DIR)
+
+def update_metrics(pins_dir: os.PathLike = PINS_DIR):
+    f"""Update the Prometheus metrics with the current number of registered users
+
+    Args:
+        pins_dir (os.PathLike, optional): Path to the user pins directory (default: {PINS_DIR})
+    """
+    user_count = count_registered_users(pins_dir)
     registered_users_gauge.set(user_count)
     print(f"Updated registered users count: {user_count}")
 
+
 def main():
+    parser = ArgumentParser(description="CryptPad Prometheus exporter")
+    parser.add_argument(
+        "--pins-dir",
+        type=str,
+        default=PINS_DIR,
+        help=f"Path to the user pins directory (default: {PINS_DIR})",
+    )
+    parser.add_argument(
+        "--port",
+        type=int,
+        default=PORT,
+        help=f"Port to expose the Prometheus metrics (default: {PORT})",
+    )
+    args = parser.parse_args()
+
+    pins_dir = args.pins_dir or os.environ.get("PINS_DIR") or PINS_DIR
+    port = int(args.port or os.environ.get("PORT") or PORT)
+
     # Start up the server to expose the metrics.
-    start_http_server(PORT)
-    print("Prometheus exporter started on port " + PORT)
+    start_http_server(port)
+    print("Prometheus exporter started on port " + port)
 
     # Update metrics every 30 seconds
     while True:
-        update_metrics()
+        update_metrics(pins_dir)
         time.sleep(30)
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()