diff --git a/flake.lock b/flake.lock
index 652f604..2f4fd1d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -121,6 +121,22 @@
       }
     },
     "flake-compat_2": {
+      "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_3": {
       "locked": {
         "lastModified": 1733328505,
         "narHash": "sha256-NeCCThCEP3eCl2l/+27kNNK7QrwZB1IJCrXfrbv5oqU=",
@@ -134,7 +150,7 @@
         "url": "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz"
       }
     },
-    "flake-compat_3": {
+    "flake-compat_4": {
       "flake": false,
       "locked": {
         "lastModified": 1733328505,
@@ -510,7 +526,59 @@
         "type": "gitlab"
       }
     },
+    "nixos-cosmic": {
+      "inputs": {
+        "flake-compat": "flake-compat_2",
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-stable": "nixpkgs-stable"
+      },
+      "locked": {
+        "lastModified": 1740267801,
+        "narHash": "sha256-ckbjP4UON7juVdSsYDpu9vFGRtdS2JvUDRHKq0SQwuA=",
+        "owner": "lilyinstarlight",
+        "repo": "nixos-cosmic",
+        "rev": "80952def5b97be37f69a9774163911b47980623a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "lilyinstarlight",
+        "repo": "nixos-cosmic",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
+      "locked": {
+        "lastModified": 1739866667,
+        "narHash": "sha256-EO1ygNKZlsAC9avfcwHkKGMsmipUk1Uc0TbrEZpkn64=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "73cf49b8ad837ade2de76f87eb53fc85ed5d4680",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1739923778,
+        "narHash": "sha256-BqUY8tz0AQ4to2Z4+uaKczh81zsGZSYxjgvtw+fvIfM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "36864ed72f234b9540da4cf7a0c49e351d30d3f1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-24.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
       "locked": {
         "lastModified": 1739698114,
         "narHash": "sha256-8S9n69Dnpg8DhfFlP0YvMGmSOY2X4kImGSPWXYNpaHM=",
@@ -526,7 +594,7 @@
         "type": "github"
       }
     },
-    "nixpkgs_2": {
+    "nixpkgs_3": {
       "locked": {
         "lastModified": 1738797219,
         "narHash": "sha256-KRwX9Z1XavpgeSDVM/THdFd6uH8rNm/6R+7kIbGa+2s=",
@@ -542,7 +610,7 @@
         "type": "github"
       }
     },
-    "nixpkgs_3": {
+    "nixpkgs_4": {
       "locked": {
         "lastModified": 1736798957,
         "narHash": "sha256-qwpCtZhSsSNQtK4xYGzMiyEDhkNzOCz/Vfu4oL2ETsQ=",
@@ -561,12 +629,12 @@
     "nixvim": {
       "inputs": {
         "devshell": "devshell",
-        "flake-compat": "flake-compat_2",
+        "flake-compat": "flake-compat_3",
         "flake-parts": "flake-parts",
         "git-hooks": "git-hooks",
         "home-manager": "home-manager_2",
         "nix-darwin": "nix-darwin",
-        "nixpkgs": "nixpkgs_2",
+        "nixpkgs": "nixpkgs_3",
         "nuschtosSearch": "nuschtosSearch",
         "treefmt-nix": "treefmt-nix"
       },
@@ -634,7 +702,8 @@
         "flake-utils": "flake-utils",
         "home-manager": "home-manager",
         "nix-matlab": "nix-matlab",
-        "nixpkgs": "nixpkgs",
+        "nixos-cosmic": "nixos-cosmic",
+        "nixpkgs": "nixpkgs_2",
         "nixvim": "nixvim",
         "nur": "nur",
         "stylix": "stylix"
@@ -647,12 +716,12 @@
         "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_3",
         "git-hooks": "git-hooks_2",
         "gnome-shell": "gnome-shell",
         "home-manager": "home-manager_3",
-        "nixpkgs": "nixpkgs_3",
+        "nixpkgs": "nixpkgs_4",
         "systems": "systems_3",
         "tinted-foot": "tinted-foot",
         "tinted-kitty": "tinted-kitty",
diff --git a/flake.nix b/flake.nix
index a2ce367..79e5203 100644
--- a/flake.nix
+++ b/flake.nix
@@ -18,6 +18,7 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
     flake-utils.url = "github:numtide/flake-utils";
+    nixos-cosmic.url = "github:lilyinstarlight/nixos-cosmic";
   };
 
   outputs =
@@ -29,6 +30,7 @@
       nixvim,
       nur,
       nix-matlab,
+      nixos-cosmic,
       ...
     }:
     let
@@ -41,6 +43,10 @@
             machineConfig
             home-manager.nixosModules.home-manager
             {
+              nix.settings = {
+                substituters = [ "https://cosmic.cachix.org/" ];
+                trusted-public-keys = [ "cosmic.cachix.org-1:Dya9IyXD4xdBehWjrkPv6rtxpmMdRel02smYzA85dPE=" ];
+              };
               machine.users = userConfig;
               home-manager.extraSpecialArgs = { inherit system; };
               home-manager.sharedModules = [
@@ -50,6 +56,7 @@
                 {
                   nixpkgs.overlays = [
                     nix-matlab.overlay
+                    nixos-cosmic.overlays.default
                   ];
                 }
               ];