diff --git a/items/api/app/Data/ItemsCollection.php b/items/api/app/Data/ItemsCollection.php
index 4080495..88ab98a 100644
--- a/items/api/app/Data/ItemsCollection.php
+++ b/items/api/app/Data/ItemsCollection.php
@@ -3,43 +3,56 @@
 namespace App\Data;
 
 use App\Exceptions\ItemNotFoundException;
+use Exception;
 use Illuminate\Support\Collection;
-use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Facades\File;
 use Illuminate\Support\Facades\Http;
 use Illuminate\Support\Str;
 use App\Config\GiteaConfig;
 
 class ItemsCollection
 {
-    protected Collection $items;
-    protected Collection $locales;
+    protected array $items;
+    protected array $locales;
 
-    private string $items_cache_key = 'items';
-    private string $locales_cache_key = 'locales';
+    private string $items_file_key = 'items.json';
+    private string $locales_file_key = 'locales.json';
 
+    /**
+     * @throws Exception
+     */
     public function __construct()
     {
-        if (!Cache::has($this->items_cache_key)) {
+        if (!File::exists(storage_path($this->items_file_key))) {
             $this->refreshItemsCache();
         } else {
-            $this->items = Cache::get($this->items_cache_key);
+            $content = file_get_contents(storage_path($this->items_file_key));
+            $this->items = json_decode($content, true);
         }
 
-        if (!Cache::has($this->locales_cache_key)) {
+        if (!File::exists(storage_path($this->locales_file_key ))) {
             $this->refreshLocalesCache();
         } else {
-            $this->locales = Cache::get($this->locales_cache_key);
+            $content = file_get_contents(storage_path($this->locales_file_key ));
+            $this->locales = json_decode($content, true);
         }
     }
 
+    /**
+     * @return void
+     * @throws Exception
+     */
     public function refreshLocalesCache(): void
     {
-        $this->locales = collect();
+        $time_limit = ini_get('max_execution_time');
+        $memory_limit = ini_get('memory_limit');
+        set_time_limit(180);
+        ini_set('memory_limit', '256M');
+        $this->locales = [];
         $rawLocalesGlobalBaseUrl = GiteaConfig::RAW_LOCALES_GLOBAL_BASE_URL;
 
         // Getting all locales in project/assets/database/locales/global from the Server development branch repository
-
-        $localesList = collect(Http::withOptions(['verify' => false])->get(GiteaConfig::LOCALES_GLOBAL_URL)->json());
+        $localesList = Http::withOptions(['verify' => false])->get(GiteaConfig::LOCALES_GLOBAL_URL)->json();
         foreach ($localesList as $item) {
             // Extract the json name for the locale
             preg_match('/([a-z]{2}(-[a-z]{2})?).json/', $item['name'], $currentLocaleName, PREG_OFFSET_CAPTURE);
@@ -49,35 +62,53 @@ class ItemsCollection
 
             $trimmedCurrentLocaleName = trim($currentLocaleName[1][0]);
             $currentLocaleJson = Http::withOptions(['verify' => false])
-                ->get("${rawLocalesGlobalBaseUrl}/${trimmedCurrentLocaleName}.json")->json();
-            $templateLocale = collect($currentLocaleJson['templates']);
-            $customizationLocale = collect($currentLocaleJson['customization']);
-            $this->locales = $this->locales->merge([$trimmedCurrentLocaleName => $templateLocale->concat($customizationLocale)]);
+                ->get("$rawLocalesGlobalBaseUrl/$trimmedCurrentLocaleName.json")->json();
+            $templateLocale = $currentLocaleJson['templates'];
+            $customizationLocale = $currentLocaleJson['customization'];
+            $this->locales[$trimmedCurrentLocaleName] = array_merge($templateLocale, $customizationLocale);
         }
-        Cache::put($this->locales_cache_key, $this->locales);
+        if (!$handle = fopen(storage_path($this->locales_file_key ), 'w')) {
+            throw new Exception('Cannot open the file');
+        }
+        fwrite($handle, json_encode($this->locales));
+        fclose($handle);
+        set_time_limit($time_limit);
+        ini_set('memory_limit', $memory_limit);
     }
 
     /**
      * @return void
+     * @throws Exception
      */
     public function refreshItemsCache(): void
     {
-        $this->items = collect(Http::withOptions(['verify' => false])->get(GiteaConfig::RAW_ITEMS_URL)->json());
-        $this->items = $this->items->merge(collect(Http::withOptions(['verify' => false])
-            ->get(GiteaConfig::RAW_CUSTOMIZATION_URL)->json()));
-        Cache::put($this->items_cache_key, $this->items);
+        $time_limit = ini_get('max_execution_time');
+        $memory_limit = ini_get('memory_limit');
+        set_time_limit(180);
+        ini_set('memory_limit', '256M');
+        $items = Http::withOptions(['verify' => false])->get(GiteaConfig::RAW_ITEMS_URL)->json();
+        $customization = Http::withOptions(['verify' => false])->get(GiteaConfig::RAW_CUSTOMIZATION_URL)->json();
+        $this->items = array_merge($items, $customization);
+        if (!$handle = fopen(storage_path($this->items_file_key ), 'w')) {
+            throw new Exception('Cannot open the file');
+        }
+        fwrite($handle, json_encode($this->items));
+        fclose($handle);
+        set_time_limit($time_limit);
+        ini_set('memory_limit', $memory_limit);
     }
 
     /**
-     * @return Collection
+     * @return array
      */
-    public function getLocales(): Collection
+    public function getLocales(): array
     {
-        return $this->locales->keys();
+        return array_keys($this->locales);
     }
 
     /**
      * @return void
+     * @throws Exception
      */
     public function refreshAllCache(): void
     {
@@ -106,7 +137,8 @@ class ItemsCollection
      */
     public function findItem(string $query, string $locale): Collection
     {
-        return $this->items->filter(function ($val, $key) use ($query, $locale) {
+        $items = collect($this->items);
+        return $items->filter(function ($val, $key) use ($query, $locale) {
             return $this->contains($val['_id'], $query)
                 || $this->contains($val['_name'], $query)
                 || $this->contains($val['_parent'], $query)
@@ -118,7 +150,7 @@ class ItemsCollection
                 'item' => [
                     '_id' => $item['_id'],
                     '_name' => $item['_name'],
-                    ],
+                ],
                 'locale' => $this->locales[$locale][$item['_id']] ?? ''
             ];
         })->values();
@@ -132,25 +164,21 @@ class ItemsCollection
      */
     public function getItemById(string $id, string $locale): array
     {
-        $item =  $this->items[$id] ?? null;
-        if ($item == null) throw new ItemNotFoundException('Item not found');
+        $item = $this->items[$id] ?? throw new ItemNotFoundException('Item not found');
         return [
             'item' => $item,
             'locale' => $this->locales[$locale][$id] ?? ''
         ];
     }
 
-    public function getHierarchy(string $id, string $locale = 'en'): Collection {
+    public function getHierarchy(string $id, string $locale = 'en'): Collection
+    {
         // Return 404 if the item does not exist
-        $itemData =  $this->items[$id] ?? '';
-        
-        if ($itemData == ''){
-            throw new ItemNotFoundException('Item not found');
-        }
+        $itemData = $this->items[$id] ?? throw new ItemNotFoundException('Item not found');
 
         // Initialize the hierarchy with the current item
         $item = [
-            'item'=> [
+            'item' => [
                 '_id' => $itemData['_id'],
                 '_name' => $itemData['_name'],
                 '_parent' => $itemData['_parent']
@@ -162,9 +190,9 @@ class ItemsCollection
         // Check the whole hierarchy and merge into the return variable
         while (!empty($item['item']['_parent'] ?? '')) {
             $itemtId = $item['item']['_parent'];
-            $itemData =  $this->items[$itemtId] ?? null;
+            $itemData = $this->items[$itemtId] ?? null;
             $item = [
-                'item'=> [
+                'item' => [
                     '_id' => $itemData['_id'],
                     '_name' => $itemData['_name'],
                     '_parent' => $itemData['_parent']