diff --git a/config/services.yaml b/config/services.yaml
index f75d8efc..ba8e1745 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -8,10 +8,12 @@ parameters:
     BOOK_FILE_NAMING_FORMAT: '%env(BOOK_FILE_NAMING_FORMAT)%'
     KOBO_PROXY_ENABLED: '%env(bool:KOBO_PROXY_ENABLED)%'
     env(KOBO_PROXY_ENABLED): true
-    KOBO_PROXY_USE_DEV: '%env(bool:KOBO_PROXY_USE_DEV)%'
-    env(KOBO_PROXY_USE_DEV): false
     KOBO_PROXY_USE_EVERYWHERE: '%env(bool:KOBO_PROXY_USE_EVERYWHERE)%'
     env(KOBO_PROXY_USE_EVERYWHERE): false
+    env(KOBO_API_URL): "https://storeapi.kobo.com"
+    KOBO_API_URL:  '%env(KOBO_API_URL)%'
+    env(KOBO_IMAGE_API_URL): "https://cdn.kobo.com/book-images"
+    KOBO_IMAGE_API_URL:  '%env(KOBO_IMAGE_API_URL)%'
 services:
     # default configuration for services in *this* file
     _defaults:
@@ -92,7 +94,8 @@ services:
 
     App\Kobo\Proxy\KoboProxyConfiguration:
       calls:
-        - [ setUseDevProxy, ['%KOBO_PROXY_USE_DEV%'] ]
+        - [ setStoreApiUrl, ['%KOBO_API_URL%'] ]
+        - [ setImageApiUrl, ['%KOBO_IMAGE_API_URL%'] ]
         - [ setEnabled, ['%KOBO_PROXY_ENABLED%'] ]
         - [ setUseProxyEverywhere, ['%KOBO_PROXY_USE_EVERYWHERE%'] ]
 
diff --git a/src/Kobo/Proxy/KoboProxyConfiguration.php b/src/Kobo/Proxy/KoboProxyConfiguration.php
index 877c358e..5c5c9aa2 100644
--- a/src/Kobo/Proxy/KoboProxyConfiguration.php
+++ b/src/Kobo/Proxy/KoboProxyConfiguration.php
@@ -7,15 +7,11 @@
 
 class KoboProxyConfiguration
 {
-    public const KOBO_STOREAPI_URL_PROD = 'https://storeapi.kobo.com';
-    public const KOBO_IMAGEHOST_URL_PROD = 'https://cdn.kobo.com/book-images';
-    public const KOBO_STOREAPI_URL_SAFE = 'https://books-proxy.example.com';
-    public const KOBO_IMAGEHOST_URL_SAFE = 'https://books-proxy.example.com';
-    private bool $useDevProxy = true;
     private bool $useProxy = true;
-    private bool $useProxyEverywhere = true;
+    private bool $useProxyEverywhere = false;
 
-    private bool $useRedirect = false;
+    private string $imageApiUrl = '';
+    private string $storeApiUrl = '';
 
     public function useProxy(): bool
     {
@@ -27,19 +23,29 @@ public function useProxyEverywhere(): bool
         return $this->useProxyEverywhere;
     }
 
-    protected function useDevProxy(): bool
+    public function getStoreApiUrl(): string
     {
-        return $this->useDevProxy;
+        if ($this->storeApiUrl === '') {
+            throw new \InvalidArgumentException('Store API URL is not set');
+        }
+
+        return $this->storeApiUrl;
     }
 
-    public function getStoreApiUrl(): string
+    public function setStoreApiUrl(string $storeApiUrl): self
     {
-        return $this->useDevProxy() ? self::KOBO_STOREAPI_URL_SAFE : self::KOBO_STOREAPI_URL_PROD;
+        $this->storeApiUrl = $storeApiUrl;
+
+        return $this;
     }
 
     public function getImageApiUrl(): string
     {
-        return $this->useDevProxy() ? self::KOBO_IMAGEHOST_URL_SAFE : self::KOBO_IMAGEHOST_URL_PROD;
+        if ($this->storeApiUrl === '') {
+            throw new \InvalidArgumentException('Image API URL is not set');
+        }
+
+        return $this->imageApiUrl;
     }
 
     public function isImageHostUrl(Request|RequestInterface $request): bool
@@ -51,9 +57,9 @@ public function isImageHostUrl(Request|RequestInterface $request): bool
             || str_ends_with($uri, '.jpeg');
     }
 
-    public function setUseDevProxy(bool $useDevProxy): KoboProxyConfiguration
+    public function setImageApiUrl(string $imageApiUrl): KoboProxyConfiguration
     {
-        $this->useDevProxy = $useDevProxy;
+        $this->imageApiUrl = $imageApiUrl;
 
         return $this;
     }
@@ -65,30 +71,6 @@ public function setEnabled(bool $useProxy): KoboProxyConfiguration
         return $this;
     }
 
-    public function setUseProxyEverywhere(bool $useProxyEverywhere): KoboProxyConfiguration
-    {
-        $this->useProxyEverywhere = $useProxyEverywhere;
-
-        return $this;
-    }
-
-    public function isBlacklistedForEveryWhere(Request $request): bool
-    {
-        return false;
-    }
-
-    public function setUseRedirect(bool $useRedirect): KoboProxyConfiguration
-    {
-        $this->useRedirect = $useRedirect;
-
-        return $this;
-    }
-
-    public function isUseRedirect(): bool
-    {
-        return $this->useRedirect;
-    }
-
     public function getNativeInitializationJson(): array
     {
         return [
@@ -242,4 +224,11 @@ public function getNativeInitializationJson(): array
             'wishlist_page' => 'https://store.kobobooks.com/{region}/{language}/account/wishlist',
         ];
     }
+
+    public function setUseProxyEverywhere(bool $useProxyEverywhere): self
+    {
+        $this->useProxyEverywhere = $useProxyEverywhere;
+
+        return $this;
+    }
 }