diff --git a/index.php b/index.php
index 123f6ecd..69071aa2 100644
--- a/index.php
+++ b/index.php
@@ -8,8 +8,8 @@ require_once __DIR__ . '/lib/bootstrap.php';

 Configuration::verifyInstallation();
 $customConfig = [];
-if (file_exists(__DIR__ . '/config.ini.php')) {
-    $customConfig = parse_ini_file(__DIR__ . '/config.ini.php', true, INI_SCANNER_TYPED);
+if (file_exists(getenv('RSSBRIDGE_DATA') . '/config.ini.php')) {
+    $customConfig = parse_ini_file(getenv('RSSBRIDGE_DATA') . '/config.ini.php', true, INI_SCANNER_TYPED);
 }
 Configuration::loadConfiguration($customConfig, getenv());

diff --git a/lib/BridgeFactory.php b/lib/BridgeFactory.php
index ad433287..195c7af1 100644
--- a/lib/BridgeFactory.php
+++ b/lib/BridgeFactory.php
@@ -13,12 +13,18 @@ final class BridgeFactory
         $this->cache = RssBridge::getCache();
         $this->logger = RssBridge::getLogger();

-        // Create all possible bridge class names from fs
+        // Create all possible bridge class names from original fs
         foreach (scandir(__DIR__ . '/../bridges/') as $file) {
             if (preg_match('/^([^.]+Bridge)\.php$/U', $file, $m)) {
                 $this->bridgeClassNames[] = $m[1];
             }
         }
+        // Create all possible bridge class names from additional fs
+        foreach (scandir(PATH_BRIDGES) as $file) {
+            if (preg_match('/^([^.]+Bridge)\.php$/U', $file, $m)) {
+                $this->bridgeClassNames[] = $m[1];
+            }
+        }

         $enabledBridges = Configuration::getConfig('system', 'enabled_bridges');
         if ($enabledBridges === null) {
diff --git a/lib/Configuration.php b/lib/Configuration.php
index c6fed0fd..672a5699 100644
--- a/lib/Configuration.php
+++ b/lib/Configuration.php
@@ -92,8 +92,8 @@ final class Configuration
             }
         }

-        if (file_exists(__DIR__ . '/../whitelist.txt')) {
-            $enabledBridges = trim(file_get_contents(__DIR__ . '/../whitelist.txt'));
+        if (file_exists(getenv('RSSBRIDGE_DATA') . '/whitelist.txt')) {
+            $enabledBridges = trim(file_get_contents(getenv('RSSBRIDGE_DATA') . '/whitelist.txt'));
             if ($enabledBridges === '*') {
                 self::setConfig('system', 'enabled_bridges', ['*']);
             } else {
diff --git a/lib/bootstrap.php b/lib/bootstrap.php
index a95de9dd..e8ed317f 100644
--- a/lib/bootstrap.php
+++ b/lib/bootstrap.php
@@ -7,7 +7,10 @@ const PATH_LIB_FORMATS = __DIR__ . '/../formats/';
 const PATH_LIB_CACHES = __DIR__ . '/../caches/';

 /** Path to the cache folder */
-const PATH_CACHE = __DIR__ . '/../cache/';
+define('PATH_CACHE', getenv('RSSBRIDGE_DATA') . '/cache/');
+
+/** Path to extra bridge files */
+define('PATH_BRIDGES', getenv('RSSBRIDGE_DATA') . '/bridges/');

 /** URL to the RSS-Bridge repository */
 const REPOSITORY = 'https://github.com/RSS-Bridge/rss-bridge/';
@@ -41,6 +44,7 @@ spl_autoload_register(function ($className) {
         __DIR__ . '/../caches/',
         __DIR__ . '/../formats/',
         __DIR__ . '/../lib/',
+        PATH_BRIDGES,
     ];
     foreach ($folders as $folder) {
         $file = $folder . $className . '.php';