diff --git a/README.md b/README.md
index 10dab93..3b089d6 100644
--- a/README.md
+++ b/README.md
@@ -65,8 +65,10 @@ You can host karaoke events using the default configuration. But if you need mor
   * `last_song`: `none` or a time in [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601). When a song is added to the queue, and its ending time exceeds this value, it is rejected.
   * `preview_duration`: Before every song, there is a short slide for the next performer. This sets how long it is shown in seconds.
   * `key`: If the server, you want to connect to is in _private_ or _restricted_ mode, this will authorize the client. Private server reject unauthorized playback clients, restricted servers limit the searching to be _client only_.
-  * `mpv_options`: additional options forwarded to `mpv`.
-  * `show_advanced`: show advanced options in the configuration GUI.
+  * `buffer_in_advance`: How many songs should be buffered in advanced.
+  * `qr_box_size`: The size of one box (think pixel) of the QR Code in the playback window.
+  * `qr_position`: Position of the QR Code in the playback window. One of `bottom-left`, `bottom-right`, `top-left`, `top-right`.
+  * `show_advanced`: Show advanced options in the configuration GUI.
 
 In addition to the general config, has its own configuration under the `sources` key of the configuration.
 
@@ -77,6 +79,7 @@ Configuration is done under `sources` → `youtube` with the following settings:
   * `enabled`: `true` or `false`.
   * `channels`: list of YouTube channels. If this is a nonempty list, Syng will only search these channels, otherwise YouTube will be searched as a whole.
   * `tmp_dir`: YouTube videos will be downloaded before playback. This sets the directory, where YouTube videos are stored.
+  * `max_res`: Maximum resolution of a video.
   * `start_streaming`: `true` or `false`. If `true`, videos will be streamed directly using `mpv`, if the video is not cached beforehand. Otherwise, Syng waits for the video to be downloaded.  
 
 ### S3
@@ -112,8 +115,11 @@ config:
   secret: <Random secret>
   server: https://syng.rocks
   waiting_room_policy: none
-  mpv_options: ''
-  show_advanced: False
+  show_advanced: false
+  buffer_in_advance: 2
+  qr_box_size: 5
+  qr_position: bottom-right
+  
 sources:
   files:
     dir: .
@@ -127,15 +133,16 @@ sources:
     endpoint: ''
     extensions:
     - mp3+cdg
-    index_file: ~/.cache/syng/s3-index
+    index_file: ${XDG_CACHE_DIR}/syng/s3-index
     secret_key: ''
     secure: true
-    tmp_dir: /tmp/syng
+    tmp_dir: ${XDG_CACHE_DIR}/syng
   youtube:
     channels: []
     enabled: true
     start_streaming: false
-    tmp_dir: /tmp/syng
+    max_res: 720
+    tmp_dir: ${XDG_CACHE_DIR}/syng
 ```
 
 # Server
diff --git a/syng/client.py b/syng/client.py
index c47d0ef..dedf53c 100644
--- a/syng/client.py
+++ b/syng/client.py
@@ -61,7 +61,7 @@ def default_config() -> dict[str, Optional[int | str]]:
         "key": None,
         "buffer_in_advance": 2,
         "qr_box_size": 5,
-        "qr_position": "bottom-left",
+        "qr_position": "bottom-right",
         "show_advanced": False,
     }
 
diff --git a/syng/player_libmpv.py b/syng/player_libmpv.py
index 871528f..2778873 100644
--- a/syng/player_libmpv.py
+++ b/syng/player_libmpv.py
@@ -28,7 +28,7 @@ class QRPosition(Enum):
             case "bottom-right":
                 return QRPosition.BOTTOM_RIGHT
             case _:
-                return QRPosition.BOTTOM_LEFT
+                return QRPosition.BOTTOM_RIGHT
 
 
 class Player:
@@ -93,16 +93,16 @@ class Player:
         osd_height: int = cast(int, self.mpv.osd_height)
 
         match self.qr_position:
-            case QRPosition.BOTTOM_LEFT:
+            case QRPosition.BOTTOM_RIGHT:
                 x_pos = osd_width - self.qr.width - 10
                 y_pos = osd_height - self.qr.height - 10
-            case QRPosition.BOTTOM_RIGHT:
+            case QRPosition.BOTTOM_LEFT:
                 x_pos = 10
                 y_pos = osd_height - self.qr.height - 10
-            case QRPosition.TOP_LEFT:
+            case QRPosition.TOP_RIGHT:
                 x_pos = osd_width - self.qr.width - 10
                 y_pos = 10
-            case QRPosition.TOP_RIGHT:
+            case QRPosition.TOP_LEFT:
                 x_pos = 10
                 y_pos = 10
 
diff --git a/syng/sources/s3.py b/syng/sources/s3.py
index 4d29aff..9bb995f 100644
--- a/syng/sources/s3.py
+++ b/syng/sources/s3.py
@@ -34,7 +34,7 @@ class S3Source(FileBasedSource):
         - ``endpoint``, ``access_key``, ``secret_key``, ``secure``, ``bucket``: These
           will simply be forwarded to the ``minio`` client.
         - ``tmp_dir``: The folder, where temporary files are stored. Default
-          is ``/tmp/syng``
+          is ``${XDG_CACHE_DIR}/syng``
         - ``index_file``: If the file does not exist, saves the paths of
           files from the s3 instance to this file. If it exists, loads
           the list of files from this file.
diff --git a/syng/sources/youtube.py b/syng/sources/youtube.py
index 443a00f..b912d2d 100644
--- a/syng/sources/youtube.py
+++ b/syng/sources/youtube.py
@@ -19,7 +19,6 @@ from yt_dlp.utils import DownloadError
 from platformdirs import user_cache_dir
 
 
-
 from ..entry import Entry
 from ..result import Result
 from .source import Source, available_sources
@@ -165,7 +164,7 @@ class YoutubeSource(Source):
           Examples are ``/c/CCKaraoke`` or
           ``/channel/UCwTRjvjVge51X-ILJ4i22ew``
         - ``tmp_dir``: The folder, where temporary files are stored. Default
-          is ``/tmp/syng``
+          is ``${XDG_CACHE_DIR}/syng``.
         - ``max_res``: The highest video resolution, that should be
           downloaded/streamed. Default is 720.
         - ``start_streaming``: If set to ``True``, the client starts streaming