diff --git a/.editorconfig b/.editorconfig
index 87af0d6..815aa06 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -3,17 +3,19 @@
 # top-most EditorConfig file
 root = true
 
-# Unix-style newlines with a newline ending every file
 [*]
 end_of_line = lf
 insert_final_newline = true
 
-# 4 space indentation
 [*.py]
 charset = utf-8
 indent_style = space
 indent_size = 4
 max_line_length = 88
 
+[*.json]
+indent_style = space
+indent_size = 4
+
 [Makefile]
 indent_style = space
diff --git a/app_bot/bot/core/service.py b/app_bot/bot/core/service.py
index d7fdc5b..412ec97 100644
--- a/app_bot/bot/core/service.py
+++ b/app_bot/bot/core/service.py
@@ -62,13 +62,14 @@ class UrlParser:
         message: Message = context['message']
         user: UserSchema = context['user']
         ack_message: Message = context['ack_message']
+        from_user_id = message.from_user.id if message.from_user else None
         return [
             URL(
                 url=url,
                 original_url=orig_url,
                 from_chat_id=message.chat.id,
                 from_chat_type=TelegramChatType(message.chat.type.value),
-                from_user_id=message.from_user.id,
+                from_user_id=from_user_id,
                 message_id=message.id,
                 ack_message_id=ack_message.id,
                 save_to_storage=user.save_to_storage,
diff --git a/app_worker/ytdl_opts/per_host/_registry.py b/app_worker/ytdl_opts/per_host/_registry.py
index dc5c7b6..4257d62 100644
--- a/app_worker/ytdl_opts/per_host/_registry.py
+++ b/app_worker/ytdl_opts/per_host/_registry.py
@@ -5,7 +5,7 @@ from ytdl_opts.per_host._base import AbstractHostConfig
 
 class HostConfRegistry(type):
     REGISTRY: dict[str, type[AbstractHostConfig]] = {}
-    HOST_TO_CLS_MAP = {}
+    HOST_TO_CLS_MAP: dict[str | None, type[AbstractHostConfig]] = {}
 
     def __new__(
         mcs: Type['HostConfRegistry'],
@@ -33,6 +33,7 @@ class HostConfRegistry(type):
     ) -> None:
         if hostnames is None:
             mcs.HOST_TO_CLS_MAP[None] = host_cls
-        else:
-            for host in hostnames:
-                mcs.HOST_TO_CLS_MAP[host] = host_cls
+            return
+
+        for host in hostnames:
+            mcs.HOST_TO_CLS_MAP[host] = host_cls
diff --git a/yt_shared/yt_shared/constants.py b/yt_shared/yt_shared/constants.py
index 4f967aa..5c1153c 100644
--- a/yt_shared/yt_shared/constants.py
+++ b/yt_shared/yt_shared/constants.py
@@ -3,8 +3,16 @@ from asyncio import Lock
 ASYNC_LOCK = Lock()
 
 
-INSTAGRAM_HOSTS = ('instagram.com', 'www.instagram.com')
-TIKTOK_HOSTS = ('tiktok.com', 'vm.tiktok.com', 'www.tiktok.com', 'www.vm.tiktok.com')
+INSTAGRAM_HOSTS = (
+    'instagram.com',
+    'www.instagram.com',
+)
+TIKTOK_HOSTS = (
+    'tiktok.com',
+    'vm.tiktok.com',
+    'www.tiktok.com',
+    'www.vm.tiktok.com',
+)
 TWITTER_HOSTS = (
     'twitter.com',
     'www.twitter.com',
@@ -14,5 +22,4 @@ TWITTER_HOSTS = (
     'www.t.co',
 )
 
-
 REMOVE_QUERY_PARAMS_HOSTS = TWITTER_HOSTS + INSTAGRAM_HOSTS
diff --git a/yt_shared/yt_shared/schemas/url.py b/yt_shared/yt_shared/schemas/url.py
index 1fa29ed..52bd627 100644
--- a/yt_shared/yt_shared/schemas/url.py
+++ b/yt_shared/yt_shared/schemas/url.py
@@ -9,7 +9,7 @@ class URL(RealBaseModel):
     original_url: StrictStr
     from_chat_id: StrictInt
     from_chat_type: TelegramChatType
-    from_user_id: StrictInt
+    from_user_id: StrictInt | None
     message_id: StrictInt
     ack_message_id: StrictInt
     save_to_storage: StrictBool