diff --git a/tg/config.py b/tg/config.py
new file mode 100644
index 0000000..458ce26
--- /dev/null
+++ b/tg/config.py
@@ -0,0 +1,32 @@
+import os
+import configparser
+import mailcap
+import mimetypes
+
+DEFAULT_CONFIG = os.path.expanduser("~/.config/tg/tg.conf")
+DEFAULT_FILES = os.path.expanduser("~/.cache/tg/")
+
+
+def get_cfg(config=DEFAULT_CONFIG):
+    cfg = configparser.ConfigParser()
+    cfg.read(config)
+    return cfg
+
+
+def save_cfg(cfg, config=DEFAULT_CONFIG):
+    config_dir = os.path.dirname(config)
+    if not os.path.isdir(config_dir):
+        os.makedirs(config_dir)
+    with open(config, "w") as f:
+        cfg.write(f)
+
+
+def get_file_handler(file_name, default=None):
+    mtype, _ = mimetypes.guess_type(file_name)
+    if not mtype:
+        return default
+    caps = mailcap.getcaps()
+    handler, view = mailcap.findmatch(caps, mtype, filename=file_name)
+    if not handler:
+        return None
+    return handler
diff --git a/tg/controllers/__init__.py b/tg/controllers/__init__.py
index c74a25a..b739889 100644
--- a/tg/controllers/__init__.py
+++ b/tg/controllers/__init__.py
@@ -54,20 +54,18 @@ class Controller:
         log.info("Open msg: %s", msg.msg)
         if msg.is_text:
             text = msg["content"]["text"]["text"]
-            with NamedTemporaryFile("w") as f:
+            with NamedTemporaryFile("w", suffix=".txt") as f:
                 f.write(text)
                 f.flush()
                 with suspend(self.view) as s:
-                    s.call(["less", f.name])
+                    s.run(f.name)
             return
 
         path = msg.local_path
         if path:
-            # handle with mimetype and mailcap
-            # if multiple entries in mailcap, open fzf to choose
             with suspend(self.view) as s:
                 log.info("Opening file: %s", path)
-                s.call(["open", path])
+                s.run(path)
 
     def handle_msgs(self) -> str:
         # set width to 0.25, move window to left
@@ -200,12 +198,24 @@ class Controller:
 
     @handle_exception
     def update_new_msg(self, update):
-        chat_id = update["message"]["chat_id"]
-        self.model.msgs.add_message(chat_id, update["message"])
+        msg = update["message"]
+        chat_id = msg["chat_id"]
+        self.model.msgs.add_message(chat_id, msg)
         self.refresh_msgs()
-        if not update.get("disable_notification"):
-            if update["message"]["content"] == "text":
-                notify(update["message"]["content"]["text"]["text"])
+
+        # notify
+        user_id = msg["sender_user_id"]
+        if msg["sender_user_id"] == self.model.get_me()["id"]:
+            return
+        user = self.model.users.get_user(user_id)
+        name = "{} {}".format(user["first_name"], user["last_name"])
+        _type = msg["content"]["@type"]
+
+        if _type == "messageText":
+            text = msg["content"]["text"]["text"]
+        else:
+            text = MsgProxy.types.get(_type, "")
+        notify(text, title=name)
 
     @handle_exception
     def update_chat_last_msg(self, update):
@@ -218,7 +228,7 @@ class Controller:
         # though need to make sure that creatinng index is atomic operation
         # requires locks for read, until index and chats will be the same
         for i, chat in enumerate(self.model.chats.chats):
-            if chat['id'] == current_chat_id:
+            if chat["id"] == current_chat_id:
                 self.model.current_chat = i
                 break
         self.refresh_chats()
diff --git a/tg/main.py b/tg/main.py
index ab6c397..c131a29 100644
--- a/tg/main.py
+++ b/tg/main.py
@@ -1,6 +1,5 @@
 import logging
 import logging.handlers
-import os
 import threading
 from curses import wrapper, window
 from functools import partial
@@ -10,23 +9,10 @@ from telegram.client import Telegram
 from tg.controllers import Controller
 from tg.models import Model
 from tg.views import View
+from tg import config, utils
 
-logging.basicConfig(
-    level=os.getenv("LOG_LEVEL", "DEBUG"),
-    format="%(asctime)s %(levelname)s %(message)s",
-    handlers=[
-        logging.handlers.RotatingFileHandler(
-            "./tg.log", backupCount=1, maxBytes=1024 * 256
-        ),
-    ],
-)
 
 log = logging.getLogger(__name__)
-API_ID = os.getenv("API_ID")
-API_HASH = os.getenv("API_HASH")
-PHONE = os.getenv("PHONE")
-if PHONE is None:
-    raise Exception("Environment variables did not provided")
 
 
 def run(tg: Telegram, stdscr: window) -> None:
@@ -61,16 +47,17 @@ class TelegramApi(Telegram):
 
 
 def main():
+    cfg = config.get_cfg()["DEFAULT"]
+    utils.setup_log(cfg.get("level", "DEBUG"))
     log.debug("#" * 64)
     tg = TelegramApi(
-        api_id=API_ID,
-        api_hash=API_HASH,
-        phone=PHONE,
-        database_encryption_key="changeme1234",
-        files_directory=os.path.expanduser("~/.cache/tg/"),
-        tdlib_verbosity=0,
-        # TODO: add in config
-        library_path="/usr/local/Cellar/tdlib/1.6.0/lib/libtdjson.dylib",
+        api_id=cfg["api_id"],
+        api_hash=cfg["api_hash"],
+        phone=cfg["login"],
+        database_encryption_key=cfg["enc_key"],
+        files_directory=cfg.get("files", config.DEFAULT_FILES),
+        tdlib_verbosity=cfg.get("tdlib_verbosity", 0),
+        library_path=cfg.get("library_path"),
     )
     tg.login()
     wrapper(partial(run, tg))
diff --git a/tg/models/__init__.py b/tg/models/__init__.py
index 6d03357..cd01a6b 100644
--- a/tg/models/__init__.py
+++ b/tg/models/__init__.py
@@ -38,6 +38,7 @@ class Model:
         if chat_id is None:
             return {}
         current_msg = self.msgs.current_msgs[chat_id]
+        log.info("current-msg: %s", current_msg)
         return self.msgs.msgs[chat_id][current_msg]
 
     def jump_bottom(self):
@@ -228,6 +229,11 @@ class MsgModel:
         log.info(f"adding {msg_id=} {message}")
         self.msgs[chat_id].append(message)
         msg_set.add(msg_id)
+
+        self.msgs[chat_id] = sorted(
+            self.msgs[chat_id], key=lambda d: d["id"], reverse=True
+        )
+
         return True
 
     def add_messages(self, chat_id: int, messages: Any) -> bool:
@@ -276,7 +282,7 @@ class MsgModel:
             messages = self._fetch_msgs_until_limit(chat_id, offset, limit)
             self.add_messages(chat_id, messages)
 
-        return sorted(self.msgs[chat_id], key=lambda d: d["id"])[::-1][
+        return sorted(self.msgs[chat_id], key=lambda d: d["id"], reverse=True)[
             offset:limit
         ]
 
diff --git a/tg/utils.py b/tg/utils.py
index ee78306..2adbcfb 100644
--- a/tg/utils.py
+++ b/tg/utils.py
@@ -4,6 +4,7 @@ from typing import Optional
 import subprocess
 from functools import wraps
 import curses
+from tg import config
 
 log = logging.getLogger(__name__)
 
@@ -15,17 +16,32 @@ def num(value: str, default: Optional[int] = None) -> Optional[int]:
         return default
 
 
-def notify(msg, subtitle="New message", title="Telegram"):
-    msg = "-message {!r}".format(msg)
-    subtitle = "-subtitle {!r}".format(subtitle)
-    title = "-title {!r}".format(title)
-    sound = "-sound default"
-    icon_path = os.path.join(os.path.dirname(__file__), "tg.png")
-    icon = f"-appIcon {icon_path}"
-    cmd = "/usr/local/bin/terminal-notifier"
+def setup_log(level="DEBUG"):
+    logging.basicConfig(
+        level=level,
+        format="%(asctime)s %(levelname)s %(message)s",
+        handlers=[
+            logging.handlers.RotatingFileHandler(
+                "./tg.log", backupCount=1, maxBytes=1024 * 1024
+            ),
+        ],
+    )
 
-    log.debug("####: %s", f"{cmd} {icon} {sound} {title} {subtitle} {msg}")
-    os.system(f"{cmd} {icon} {sound} {title} {subtitle} {msg}")
+
+def notify(
+    msg,
+    subtitle="",
+    title="tg",
+    cmd=config.get_cfg()["DEFAULT"].get("notify_cmd"),
+):
+    if not cmd:
+        return
+    icon_path = os.path.join(os.path.dirname(__file__), "tg.png")
+    notify_cmd = cmd.format(
+        icon_path=icon_path, title=title, subtitle=subtitle, msg=msg
+    )
+    log.info("notify-cmd: %s", notify_cmd)
+    os.system(notify_cmd)
 
 
 def handle_exception(fun):
@@ -46,6 +62,12 @@ class suspend:
     def call(self, *args, **kwargs):
         subprocess.call(*args, **kwargs)
 
+    def run(self, file_path):
+        cmd = config.get_file_handler(file_path)
+        if not cmd:
+            return
+        subprocess.call(cmd, shell=True)
+
     def __enter__(self):
         curses.endwin()
         return self