Revert "home/kanshi: drop"

This reverts commit c158f2d81b.

home/applications/kanshi/default.nix

@@ -0,0 +1,30 @@
+{
+  services.kanshi = {
+    enable = true;
+    settings = [
+      {
+        profile.name = "internal";
+        profile.outputs = [
+          {
+            criteria = "eDP-1";
+            status = "enable";
+          }
+        ];
+      }
+      {
+        profile.name = "external";
+        profile.outputs = [
+          {
+            criteria = "eDP-1";
+            status = "disable";
+          }
+          {
+            criteria = "ASUSTek COMPUTER INC VG27AQML1A S5LMQS059959";
+            mode = "2560x1440@119.998";
+            status = "enable";
+          }
+        ];
+      }
+    ];
+  };
+}