Add kanshi to autoconfigure monitor layout

home/sway/kanshi.nix

@@ -0,0 +1,32 @@
+{ config, ... }: {
+  # automatically configure monitor layout depending on connected devices
+  # https://git.sr.ht/~emersion/kanshi
+  services.kanshi = {
+    enable = config.wayland.windowManager.sway.enable;
+    settings = [
+      {
+        profile = {
+          name = "home";
+          outputs = [
+            {
+              criteria = "eDP-1";
+            }
+            {
+              criteria = "HDMI-A-1";
+            }
+          ];
+        };
+      }
+      {
+        profile = {
+          name = "mobile";
+          outputs = [
+            {
+              criteria = "eDP-1";
+            }
+          ];
+        };
+      }
+    ];
+  };
+}