diff --git a/src/dot_config/niri/config.kdl b/src/dot_config/niri/config.kdl
index 8d02def..e778776 100644
--- a/src/dot_config/niri/config.kdl
+++ b/src/dot_config/niri/config.kdl
@@ -59,6 +59,11 @@ prefer-no-csd
 // You can also set this to null to disable saving screenshots to disk.
 screenshot-path null
 
+window-rule {
+	geometry-corner-radius 5
+	clip-to-geometry true
+}
+
 window-rule {
     match app-id=r#"qutebrowser"#
 	opacity 0.8
@@ -168,6 +173,9 @@ binds {
     Alt+H              { focus-monitor-left; }
     Alt+L              { focus-monitor-right; }
 
+    Win+M              { spawn "dunstctl" "close"; }
+    Win+N              { spawn "dunstctl" "history-pop"; }
+
     Alt+Shift+H        { move-column-to-monitor-left; }
     Alt+Shift+L        { move-column-to-monitor-right; }
 
@@ -230,7 +238,7 @@ binds {
     Alt+Shift+9 { move-column-to-workspace 9; }
     Alt+Shift+0 { move-column-to-workspace 10; }
 
-    Mod+Tab { focus-workspace-previous; }
+    Alt+Tab { focus-workspace-previous; }
 
     Alt+Ctrl+Comma  { consume-window-into-column; }
     Alt+Ctrl+Period { expel-window-from-column; }
diff --git a/src/dot_local/bin/deskutils/executable_notification-sound.sh b/src/dot_local/bin/deskutils/executable_notification-sound.sh
index 41068fc..be7b71e 100644
--- a/src/dot_local/bin/deskutils/executable_notification-sound.sh
+++ b/src/dot_local/bin/deskutils/executable_notification-sound.sh
@@ -9,4 +9,4 @@ if [ "$DUNST_APP_NAME" = "prod" ]; then
 	exit
 fi
 
-paplay ~/.local/bin/deskutils/notif.mp3
+paplay ~/.local/bin/deskutils/notif.wav
diff --git a/src/dot_local/bin/deskutils/notif.mp3 b/src/dot_local/bin/deskutils/notif.mp3
deleted file mode 100644
index d1eb4a6..0000000
Binary files a/src/dot_local/bin/deskutils/notif.mp3 and /dev/null differ
diff --git a/src/dot_local/bin/deskutils/notif.wav b/src/dot_local/bin/deskutils/notif.wav
new file mode 100644
index 0000000..7c2dd23
Binary files /dev/null and b/src/dot_local/bin/deskutils/notif.wav differ