diff --git a/flake.lock b/flake.lock
index e2e6ce6..a717329 100644
--- a/flake.lock
+++ b/flake.lock
@@ -7,43 +7,43 @@
         ]
       },
       "locked": {
-        "lastModified": 1758463745,
-        "narHash": "sha256-uhzsV0Q0I9j2y/rfweWeGif5AWe0MGrgZ/3TjpDYdGA=",
+        "lastModified": 1766553861,
+        "narHash": "sha256-ZbnG01yA3O8Yr1vUm3+NQ2qk9iRhS5bloAnuXHHy7+c=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "3b955f5f0a942f9f60cdc9cacb7844335d0f21c3",
+        "rev": "0999ed8f965bbbd991437ad9c5ed3434cecbc30e",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "release-25.05",
+        "ref": "release-25.11",
         "repo": "home-manager",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1762233356,
-        "narHash": "sha256-cGS3lLTYusbEP/IJIWGgnkzIl+FA5xDvtiHyjalGr4k=",
+        "lastModified": 1766473571,
+        "narHash": "sha256-5G1NDO2PulBx1RoaA6U1YoUDX0qZslpPxv+n5GX6Qto=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "ca534a76c4afb2bdc07b681dbc11b453bab21af8",
+        "rev": "76701a179d3a98b07653e2b0409847499b2a07d3",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-25.05",
+        "ref": "nixos-25.11",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1762361079,
-        "narHash": "sha256-lz718rr1BDpZBYk7+G8cE6wee3PiBUpn8aomG/vLLiY=",
+        "lastModified": 1766624085,
+        "narHash": "sha256-ruzNOGQR0HKynAarKRhAYwIZc79IkDqui4ovQmkZPQI=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "ffcdcf99d65c61956d882df249a9be53e5902ea5",
+        "rev": "b72f284b1be41575c3e36cd777a191c29a7adf6a",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 44aebbe..b82fc34 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,11 +2,11 @@
   description = "NixOS + Home Manager config";
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
     nixpkgs-unstable.url = "github:nixos/nixpkgs/nixpkgs-unstable";
 
     home-manager = {
-      url = "github:nix-community/home-manager/release-25.05";
+      url = "github:nix-community/home-manager/release-25.11";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
@@ -19,12 +19,18 @@
       pkgs-unstable = import inputs.nixpkgs-unstable {
         system = system;
         config.allowUnfree = true;
+        config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
+          "steam"
+          "steam-original"
+          "steam-unwrapped"
+          "steam-run"
+        ];
       };
     in
     {
       nixosConfigurations = {
         segfault-machine = lib.nixosSystem {
-          inherit system; # inherited it from 'let' block
+          inherit system; # inherited it from let block
 
           specialArgs = { inherit pkgs-unstable; };
 
diff --git a/hosts/segfault-tower/configuration.nix b/hosts/segfault-tower/configuration.nix
index fe799f4..ba83ef9 100644
--- a/hosts/segfault-tower/configuration.nix
+++ b/hosts/segfault-tower/configuration.nix
@@ -22,8 +22,10 @@
     ../../modules/system/virtualbox.nix
     ../../modules/system/mullvad.nix
     ../../modules/services/ollama.nix
+    ../../modules/services/steam.nix
   ];
 
+
   # Bootloader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
diff --git a/modules/services/ollama.nix b/modules/services/ollama.nix
index 6e07a54..4341c9d 100644
--- a/modules/services/ollama.nix
+++ b/modules/services/ollama.nix
@@ -1,9 +1,9 @@
-{config, pkgs-unstable, ... }:
+{config, pkgs, ... }:
 
 {
   services.ollama = {
     enable = true;
-    package = pkgs-unstable.ollama;
+    package = pkgs.ollama;
     acceleration = "cuda";
     environmentVariables = {
       OLLAMA_CONTEXT_LENGTH="32000";
@@ -15,7 +15,7 @@
   };
 
   services.open-webui = {
-    package = pkgs-unstable.open-webui;
+    package = pkgs.open-webui;
     enable = true;
     port = 8081;
     environment = {
diff --git a/modules/services/steam.nix b/modules/services/steam.nix
new file mode 100644
index 0000000..baa3811
--- /dev/null
+++ b/modules/services/steam.nix
@@ -0,0 +1,8 @@
+{
+  programs.steam = {
+    enable = true;
+    remotePlay.openFirewall = true;
+    dedicatedServer.openFirewall = true;
+    localNetworkGameTransfers.openFirewall = true;
+  };
+}