diff --git a/main.py b/main.py
index 15d458e..b0e6fbf 100644
--- a/main.py
+++ b/main.py
@@ -162,6 +162,22 @@ async def query_template(update: Update, context: CustomContext) -> None:
     await _edit_message.forward[0].edit_caption(context.chat_data.template[name])
 
 
+@send_action(ChatAction.TYPING)
+async def cmd_start(update: Update, context: CustomContext) -> None:
+    await update.effective_message.reply_text(
+        "Welcome to the Twitter Fetcher Bot!\n"
+        "You can use this bot to fetch tweets from Twitter and forward them to a channel.\n"
+        "Use /set_forward_channel to set a channel to forward tweets.\n"
+        "Use /remove_forward_channel to remove the channel.\n"
+        "Use /edit_before_forward to enable or disable edit before forward.\n"
+        "Use /set_template to set a template for the forwarded message.\n"
+        "Use /bot_dict to see the bot's data.\n"
+        "Use /clear_edit_message to clear the edit message cache.\n"
+        "You can also reply to a message with a tweet URL to fetch the tweet and forward it to the channel.\n"
+        "You can also use inline query to search for tweets."
+    )
+
+
 @send_action(ChatAction.TYPING)
 async def cmd_set_forward_channel(update: Update, context: CustomContext) -> None:
     if not context.args:
diff --git a/utils/regex.py b/utils/regex.py
index fadc131..f97df70 100644
--- a/utils/regex.py
+++ b/utils/regex.py
@@ -1,10 +1,11 @@
 import re
 
-x_url = re.compile(r"^(?:https?://)?(?:www\.|mobile\.)?(?:x|twitter|fixvx|vxtwitter)\.com/(.+)/status/(\d+)")
+x_url = re.compile(
+    r"^(?:https?://)?(?:www\.|mobile\.)?(?:x|twitter|fixvx|vxtwitter|fixupx|fxtwitter)\.com/(.+)/status/(\d+)")
 x_media_url = re.compile(r"^(?:https?://)?(pbs|video)\.twimg\.com/(.*)")
 x_tco_url = re.compile(r"(?:https?://)?t\.co/.+$", re.M)
 message_url = re.compile(r"\[.+]", re.S)
 
 pixiv_url = re.compile(r"^(?:https?://)?(?:www\.)?pixiv\.net/(?:en/)?(?:artworks/|i/)(\d+)")
 
-bsky_url = re.compile(r"^(?:https?://)?(?:bsky)\.app/profile/(.+)/post/(.+)")
+bsky_url = re.compile(r"^(?:https?://)?bsky\.app/profile/(.+)/post/(.+)")