diff --git a/addUser.php b/addUser.php
index de7e4eb..e1ed3ec 100644
--- a/addUser.php
+++ b/addUser.php
@@ -1,8 +1,9 @@
 <?php
+require 'config.php';
 session_start();
 header('Content-Type: application/json');
 
-$usersFile = 'users.txt';
+$usersFile = USERS_FILE;
 
 // Determine if we are in setup mode:
 // - Query parameter setup=1 is passed
diff --git a/auth.php b/auth.php
index 322de1a..c17190d 100644
--- a/auth.php
+++ b/auth.php
@@ -1,8 +1,9 @@
 <?php
+require 'config.php';
 session_start();
 header('Content-Type: application/json');
 
-$usersFile = 'users.txt';
+$usersFile = USERS_FILE;
 
 // Function to authenticate user
 function authenticate($username, $password) {
diff --git a/checkAuth.php b/checkAuth.php
index 493ef83..01af5a8 100644
--- a/checkAuth.php
+++ b/checkAuth.php
@@ -1,9 +1,10 @@
 <?php
+require 'config.php';
 session_start();
 header('Content-Type: application/json');
 
 // Check if users.txt is empty or doesn't exist
-$usersFile = __DIR__ . '/users.txt';
+$usersFile = USERS_FILE;
 if (!file_exists($usersFile) || trim(file_get_contents($usersFile)) === '') {
     // Return JSON indicating setup mode
     echo json_encode(["setup" => true]);
diff --git a/config.php b/config.php
index 72078be..282a9d7 100644
--- a/config.php
+++ b/config.php
@@ -5,5 +5,6 @@ define('BASE_URL', 'http://yourwebsite/uploads/');
 define('TIMEZONE', 'America/New_York');
 define('DATE_TIME_FORMAT', 'm/d/y  h:iA');
 define('TOTAL_UPLOAD_SIZE', '5G');
+define('USERS_FILE', '/var/www/uploads/users.txt');
 date_default_timezone_set(TIMEZONE);
 ?>
diff --git a/getUsers.php b/getUsers.php
index 9e46464..3f32913 100644
--- a/getUsers.php
+++ b/getUsers.php
@@ -1,4 +1,5 @@
 <?php
+require 'config.php';
 session_start();
 header('Content-Type: application/json');
 if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true ||
@@ -6,7 +7,7 @@ if (!isset($_SESSION['authenticated']) || $_SESSION['authenticated'] !== true ||
     echo json_encode(["error" => "Unauthorized"]);
     exit;
 }
-$usersFile = 'users.txt';
+$usersFile = USERS_FILE;
 $users = [];
 if (file_exists($usersFile)) {
     $lines = file($usersFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
diff --git a/removeUser.php b/removeUser.php
index 663742e..60245b8 100644
--- a/removeUser.php
+++ b/removeUser.php
@@ -1,8 +1,9 @@
 <?php
+require 'config.php';
 session_start();
 header('Content-Type: application/json');
 
-$usersFile = 'users.txt';
+$usersFile = USERS_FILE;
 
 // Only allow admins to remove users
 if (