diff --git a/lon_deployer/main.py b/lon_deployer/main.py
index 9700bd8..80ffe83 100644
--- a/lon_deployer/main.py
+++ b/lon_deployer/main.py
@@ -14,6 +14,7 @@ import adbutils
 import adbutils.shell
 from rich.console import Console
 from rich.prompt import Prompt
+from rich_argparse import RichHelpFormatter
 
 from . import Files
 from .utils import check_device, get_port, flash_boot, boot_ofox, clean_device, wait_for_bootloader, check_parts, \
@@ -43,46 +44,50 @@ def main() -> int:
     signal.signal(signal.SIGINT, handle_sigint)
 
     parser = argparse.ArgumentParser(
-        description="Linux on Nabu deployer"
+        description="Linux on Nabu deployer",
+        formatter_class=lambda prog: RichHelpFormatter(
+            prog,
+            max_help_position=37
+        )
+    )
+
+    parser.add_argument(
+        "-v", "--version",
+        help="show version and exit",
+        action="store_true"
     )
 
     parser.add_argument(
         "-d", "--device-serial",
-        help="Device serial"
+        help="device serial"
     )
 
     parser.add_argument(
         "-u", "--username",
-        help="User name"
+        help="linux user name"
     )
 
     parser.add_argument(
         "-p", "--password",
-        help="User password"
+        help="linux user password"
     )
 
     parser.add_argument(
         "RootFS",
-        help="RootFS image"
+        help="root fs image",
+        default=None, nargs="?"
     )
 
     parser.add_argument(
         "-S", "--part-size",
         help="linux partition size in percents"
     )
-
     parser.add_argument(
         "--debug",
         help="enable debug output",
         action="store_true"
     )
 
-    parser.add_argument(
-        "--version",
-        help="show version and exit",
-        action="store_true"
-    )
-
     args = parser.parse_args()
 
     if args.version:
@@ -94,16 +99,19 @@ def main() -> int:
     else:
         logger.setLevel(logging.INFO)
 
-    rootfs = op.abspath(args.RootFS)
-    try:
-        rootfs_magic = magic.Magic(mime=True).from_file(rootfs)
-        logger.debug(f"RootFS magic: {rootfs_magic}")
-        if rootfs_magic not in ["application/octet-stream", "inode/blockdevice"]:
-            console.log("Invalid RootFS image")
+    if args.RootFS:
+        rootfs = op.abspath(args.RootFS)
+        try:
+            rootfs_magic = magic.Magic(mime=True).from_file(rootfs)
+            logger.debug(f"RootFS magic: {rootfs_magic}")
+            if rootfs_magic not in ["application/octet-stream", "inode/blockdevice"]:
+                console.log("Invalid RootFS image")
+                return 1
+        except FileNotFoundError:
+            console.log("RootFS image not found!")
             return 1
-    except FileNotFoundError:
-        console.log("RootFS image not found!")
-        return 1
+    else:
+        console.log(parser.parse_args("-h".split()))
 
     while True:
         try:
diff --git a/poetry.lock b/poetry.lock
index 6046375..657a9e8 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -642,6 +642,20 @@ pygments = ">=2.13.0,<3.0.0"
 [package.extras]
 jupyter = ["ipywidgets (>=7.5.1,<9)"]
 
+[[package]]
+name = "rich-argparse"
+version = "1.4.0"
+description = "Rich help formatters for argparse and optparse"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "rich_argparse-1.4.0-py3-none-any.whl", hash = "sha256:68b263d3628d07b1d27cfe6ad896da2f5a5583ee2ba226aeeb24459840023b38"},
+    {file = "rich_argparse-1.4.0.tar.gz", hash = "sha256:c275f34ea3afe36aec6342c2a2298893104b5650528941fb53c21067276dba19"},
+]
+
+[package.dependencies]
+rich = ">=11.0.0"
+
 [[package]]
 name = "setuptools"
 version = "69.5.1"
@@ -689,4 +703,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "3.11.*"
-content-hash = "e2af14ef9b15c3b3cc9b0716da5276427808f431f8d5603541dfdf390656397b"
+content-hash = "f36325d69c03ac98f4b2bd0aed451b859ef95bc05b3c3a072da079770e683e0a"
diff --git a/pyproject.toml b/pyproject.toml
index 81e8317..84da771 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,6 +15,7 @@ pyinstaller = "^6.6.0"
 libusb = "^1.0.27"
 python-magic = { version = "^0.4.27", platform="linux" }
 python-magic-bin = { version = "0.4.14", platform="win32" }
+rich-argparse = "^1.4.0"
 
 [tool.poetry.scripts]
 lon-deployer = "lon_deployer.main:run"