diff --git a/flake.lock b/flake.lock
index 48222e4..ac6f922 100644
--- a/flake.lock
+++ b/flake.lock
@@ -271,6 +271,22 @@
       }
     },
     "flake-compat_3": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1717312683,
+        "narHash": "sha256-FrlieJH50AuvagamEvWMIE6D2OAnERuDboFDYAED/dE=",
+        "owner": "nix-community",
+        "repo": "flake-compat",
+        "rev": "38fd3954cf65ce6faf3d0d45cd26059e059f07ea",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-compat_4": {
       "locked": {
         "lastModified": 1733328505,
         "narHash": "sha256-NeCCThCEP3eCl2l/+27kNNK7QrwZB1IJCrXfrbv5oqU=",
@@ -1056,6 +1072,29 @@
         "type": "github"
       }
     },
+    "nixos-cosmic": {
+      "inputs": {
+        "flake-compat": "flake-compat_3",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "nixpkgs-stable": "nixpkgs-stable_2",
+        "rust-overlay": "rust-overlay_2"
+      },
+      "locked": {
+        "lastModified": 1743589597,
+        "narHash": "sha256-fUTd0BMMlHUG+9E/2fvIJuXKCqSpweY7NetQXZndKPk=",
+        "owner": "lilyinstarlight",
+        "repo": "nixos-cosmic",
+        "rev": "760c3a4173ff62ab0ad0925cbb39ac166e23803c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "lilyinstarlight",
+        "repo": "nixos-cosmic",
+        "type": "github"
+      }
+    },
     "nixos-hardware": {
       "locked": {
         "lastModified": 1743167577,
@@ -1104,6 +1143,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-stable_2": {
+      "locked": {
+        "lastModified": 1743367904,
+        "narHash": "sha256-sOos1jZGKmT6xxPvxGQyPTApOunXvScV4lNjBCXd/CI=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7ffe0edc685f14b8c635e3d6591b0bbb97365e6c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-24.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1742889210,
@@ -1223,6 +1278,7 @@
         "mysecrets": "mysecrets",
         "nix-flatpak": "nix-flatpak",
         "nix-index-database": "nix-index-database",
+        "nixos-cosmic": "nixos-cosmic",
         "nixos-hardware": "nixos-hardware",
         "nixpkgs": "nixpkgs_2",
         "sops-nix": "sops-nix",
@@ -1267,6 +1323,27 @@
         "type": "github"
       }
     },
+    "rust-overlay_2": {
+      "inputs": {
+        "nixpkgs": [
+          "nixos-cosmic",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1743475035,
+        "narHash": "sha256-uLjVsb4Rxnp1zmFdPCDmdODd4RY6ETOeRj0IkC0ij/4=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "bee11c51c2cda3ac57c9e0149d94b86cc1b00d13",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
     "sops-nix": {
       "inputs": {
         "nixpkgs": [
@@ -1294,7 +1371,7 @@
         "base16-helix": "base16-helix",
         "base16-vim": "base16-vim",
         "firefox-gnome-theme": "firefox-gnome-theme",
-        "flake-compat": "flake-compat_3",
+        "flake-compat": "flake-compat_4",
         "flake-utils": "flake-utils_2",
         "git-hooks": "git-hooks",
         "gnome-shell": "gnome-shell",
diff --git a/flake.nix b/flake.nix
index 126211f..8453f9d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -15,7 +15,7 @@
     # neve.url = "git+https://gitea.linerds.us/unexplrd/Neve";
     nix-flatpak.url = "github:gmodena/nix-flatpak";
     nix-index-database.url = "github:nix-community/nix-index-database";
-    # nixos-cosmic.url = "github:lilyinstarlight/nixos-cosmic";
+    nixos-cosmic.url = "github:lilyinstarlight/nixos-cosmic";
     # nixvim.url = "github:nix-community/nixvim";
     nixos-hardware.url = "github:NixOS/nixos-hardware/master";
     nixpkgs.url = "github:NixOS/nixpkgs?ref=nixos-unstable";
@@ -34,6 +34,7 @@
     lix.inputs.nixpkgs.follows = "nixpkgs";
     mysecrets.flake = false;
     # neve.inputs.nixvim.follows = "nixvim";
+    nixos-cosmic.inputs.nixpkgs.follows = "nixpkgs";
     nix-index-database.inputs.nixpkgs.follows = "nixpkgs";
     sops-nix.inputs.nixpkgs.follows = "nixpkgs";
   };
diff --git a/hosts/dunamis/configuration.nix b/hosts/dunamis/configuration.nix
index 169671d..b7ad42e 100644
--- a/hosts/dunamis/configuration.nix
+++ b/hosts/dunamis/configuration.nix
@@ -14,7 +14,7 @@
     ./users.nix
   ];
 
-  desktop.niri.enable = true;
+  desktop.cosmic.enable = true;
   environment.memoryAllocator.provider = "mimalloc";
   locale.ukrainian.enable = true;
   opentabletdriver.enable = false;
diff --git a/hosts/eldrid/configuration.nix b/hosts/eldrid/configuration.nix
index 4799740..c03b3f6 100644
--- a/hosts/eldrid/configuration.nix
+++ b/hosts/eldrid/configuration.nix
@@ -15,7 +15,7 @@
     ./users.nix
   ];
 
-  desktop.niri.enable = true;
+  desktop.cosmic.enable = true;
 
   locale.ukrainian.enable = true;
 
diff --git a/modules/home/desktop/default.nix b/modules/home/desktop/default.nix
index c18c8e5..5ed5ec0 100644
--- a/modules/home/desktop/default.nix
+++ b/modules/home/desktop/default.nix
@@ -1,6 +1,7 @@
 {
   imports = [
     ./common/xdg-userdirs.nix
+    ./cosmic
     ./gnome
     ./hyprland
     ./niri
diff --git a/modules/nixos/desktop/default.nix b/modules/nixos/desktop/default.nix
index 29366e9..3140e4a 100644
--- a/modules/nixos/desktop/default.nix
+++ b/modules/nixos/desktop/default.nix
@@ -1,7 +1,7 @@
 {
   imports = [
     ./common/pipewire.nix
-    # ./cosmic.nix
+    ./cosmic.nix
     ./gnome.nix
     ./hyprland.nix
     ./niri.nix