diff --git a/.config/niri/niri.d/window-rules.kdl b/.config/niri/niri.d/window-rules.kdl
new file mode 100644
index 0000000..6fb8a09
--- /dev/null
+++ b/.config/niri/niri.d/window-rules.kdl
@@ -0,0 +1,94 @@
+// ────── Chat ──────
+
+window-rule {
+    match app-id="discord"
+    open-on-workspace "chat"
+}
+
+window-rule {
+    match app-id="com.rtosta.zapzap"
+    open-on-workspace "chat"
+}
+
+window-rule {
+    match app-id="signal"
+    open-on-workspace "chat"
+}
+
+window-rule {
+    match app-id="Element"
+    open-on-workspace "chat"
+}
+
+window-rule {
+    match app-id="org.mozilla.Thunderbird"
+    open-on-workspace "chat"
+    open-maximized true
+}
+
+
+// ────── Games ──────
+
+window-rule {
+    match app-id="heroic"
+    open-on-workspace "games"
+}
+
+window-rule {
+    match app-id="steam"
+    open-on-workspace "games"
+    open-maximized true
+}
+
+window-rule {
+    match app-id="Lutris"
+   open-on-workspace "games"
+}
+
+window-rule {
+    match app-id="Bottles"
+    open-on-workspace "games"
+}
+
+ // ────────────── Sonstige Window Rules ──────────────
+
+window-rule {
+    match app-id=r#"firefox$"# title="^Picture-in-Picture$"
+    open-floating true // Always float Firefox PiP windows
+}
+
+window-rule {
+    geometry-corner-radius 7 // Set every window radius to 20
+    clip-to-geometry true
+}
+
+// 1. Umbenennen-Dialog (Thunar)
+window-rule {
+    match app-id="thunar" title="umbenennen$"
+    open-floating true
+    // Zentriert das Fenster
+    default-column-width { fixed 400; }
+}
+
+// 2. Dateivorgangsfortschritt (Kopieren/Verschieben)
+window-rule {
+    match app-id="thunar" title="^Dateivorgangsfortschritt"
+    open-floating true
+    default-column-width { fixed 450; }
+    default-window-height { fixed 150; }
+}
+
+// 3. Bestätigungsdialoge (Ersetzen/Konflikte)
+window-rule {
+    match app-id="thunar" title="^Ersetzen von Dateien bestätigen"
+    open-floating true
+    // Hier geben wir etwas mehr Breite für die Details
+    default-column-width { fixed 650; }
+}
+window-rule {
+    // Wir kombinieren App ID und den spezifischen Titel der Extension
+    match app-id="vivaldi-stable" title="^Bitwarden"
+    open-floating true
+    default-column-width { fixed 450; }
+   default-window-height { fixed 700; }
+}
\ No newline at end of file