diff --git a/app.py b/app.py
index 267b686..0766b34 100644
--- a/app.py
+++ b/app.py
@@ -2,7 +2,7 @@ from flask import Flask, jsonify
 from flask_apscheduler import APScheduler
 from datetime import datetime, timedelta
 from scanner import update_cache, get_cache_snapshot, get_sensor_summary, get_sensor_details, scan_macs
-from config import SCAN_INTERVAL_MINUTES
+from config import *
 
 app = Flask(__name__)
 scheduler = APScheduler()
diff --git a/scanner.py b/scanner.py
index 77be153..8bd80c0 100644
--- a/scanner.py
+++ b/scanner.py
@@ -5,9 +5,10 @@ from datetime import datetime, timezone
 from zoneinfo import ZoneInfo   # Python 3.9+
 from bleak import BleakScanner, BleakClient
 from typing import Set, Iterable
-from config import MAC_PREFIX
+from config import *
 from sensors import *
 from ble import *
+from redis import *
 
 # In-memory cache + thread-safe lock
 _mac_cache: Set[str] = set()
diff --git a/sensors.py b/sensors.py
index e3667f0..1d9ccb6 100644
--- a/sensors.py
+++ b/sensors.py
@@ -4,6 +4,7 @@ import re
 from dataclasses import dataclass, field
 from datetime import datetime, timezone
 from typing import Any, Dict, List, Optional, Union
+from config import *
 
 # --------------------------------------------------------------------------- #
 #  Helper utilities