diff --git a/configuration.nix b/configuration.nix
index ccbb448..cbbb484 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -69,6 +69,7 @@ in
   networking.hostName = "lenovo-nix";
   # networking.proxy.default = "http://user:password@proxy:port/";
   # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+  networking.nameservers = ["1.1.1.1"];
 
   networking.networkmanager.enable = true;
   time.timeZone = lib.mkForce "Europe/Prague";
diff --git a/flake.lock b/flake.lock
index 3c9252b..06569dc 100644
--- a/flake.lock
+++ b/flake.lock
@@ -121,11 +121,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1752391422,
-        "narHash": "sha256-ReX0NG6nIAEtQQjLqeu1vUU2jjZuMlpymNtb4VQYeus=",
+        "lastModified": 1752780124,
+        "narHash": "sha256-5dn97vIYxn6VozKePOQSDxVCsrl38nDdMJXx86KIJH0=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "c26266790678863cce8e7460fdbf0d80991b1906",
+        "rev": "c718918222bdb104397762dea67e6b397a7927fe",
         "type": "github"
       },
       "original": {
@@ -143,11 +143,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1743604125,
-        "narHash": "sha256-ZD61DNbsBt1mQbinAaaEqKaJk2RFo9R/j+eYWeGMx7A=",
+        "lastModified": 1752603129,
+        "narHash": "sha256-S+wmHhwNQ5Ru689L2Gu8n1OD6s9eU9n9mD827JNR+kw=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "180fd43eea296e62ae68e079fcf56aba268b9a1a",
+        "rev": "e8c19a3cec2814c754f031ab3ae7316b64da085b",
         "type": "github"
       },
       "original": {
@@ -469,11 +469,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1752373194,
-        "narHash": "sha256-wr42guldY37FVoFllUNgSavfohWKb/ExIySnzBCswDY=",
+        "lastModified": 1752832532,
+        "narHash": "sha256-YvQ6sjTxS+cw+w8fhEL41vAC28q4sB0vT77uhzQ1eOA=",
         "owner": "fufexan",
         "repo": "nix-gaming",
-        "rev": "ad11b470127157e4277a875b0fca4234cca25b78",
+        "rev": "4e113d7f833a78a54a35dfc5514a89e5e7c78d4f",
         "type": "github"
       },
       "original": {
@@ -489,11 +489,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1752378829,
-        "narHash": "sha256-LVqpSiYJ+zcxLvA6YUn9udrq8+NFBJ9oSwiEePPa9+g=",
+        "lastModified": 1752441837,
+        "narHash": "sha256-FMH1OSSJp8Cx8MZHXz6KckxJGbCnVMotZNAH3v2WneU=",
         "owner": "nix-community",
         "repo": "nix-index-database",
-        "rev": "12201a430ee613bc720cef21a130b416cb1b5108",
+        "rev": "839e02dece5845be3a322e507a79712b73a96ba2",
         "type": "github"
       },
       "original": {
@@ -504,11 +504,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1752048960,
-        "narHash": "sha256-gATnkOe37eeVwKKYCsL+OnS2gU4MmLuZFzzWCtaKLI8=",
+        "lastModified": 1752666637,
+        "narHash": "sha256-P8J72psdc/rWliIvp8jUpoQ6qRDlVzgSDDlgkaXQ0Fw=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "7ced9122cff2163c6a0212b8d1ec8c33a1660806",
+        "rev": "d1bfa8f6ccfb5c383e1eba609c1eb67ca24ed153",
         "type": "github"
       },
       "original": {
@@ -550,11 +550,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1751984180,
-        "narHash": "sha256-LwWRsENAZJKUdD3SpLluwDmdXY9F45ZEgCb0X+xgOL0=",
+        "lastModified": 1752687322,
+        "narHash": "sha256-RKwfXA4OZROjBTQAl9WOZQFm7L8Bo93FQwSJpAiSRvo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9807714d6944a957c2e036f84b0ff8caf9930bc0",
+        "rev": "6e987485eb2c77e5dcc5af4e3c70843711ef9251",
         "type": "github"
       },
       "original": {
@@ -582,11 +582,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1752308619,
-        "narHash": "sha256-pzrVLKRQNPrii06Rm09Q0i0dq3wt2t2pciT/GNq5EZQ=",
+        "lastModified": 1752620740,
+        "narHash": "sha256-f3pO+9lg66mV7IMmmIqG4PL3223TYMlnlw+pnpelbss=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "650e572363c091045cdbc5b36b0f4c1f614d3058",
+        "rev": "32a4e87942101f1c9f9865e04dc3ddb175f5f32e",
         "type": "github"
       },
       "original": {
@@ -598,11 +598,11 @@
     },
     "nixpkgs_4": {
       "locked": {
-        "lastModified": 1743448293,
-        "narHash": "sha256-bmEPmSjJakAp/JojZRrUvNcDX2R5/nuX6bm+seVaGhs=",
+        "lastModified": 1752480373,
+        "narHash": "sha256-JHQbm+OcGp32wAsXTE/FLYGNpb+4GLi5oTvCxwSoBOA=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "77b584d61ff80b4cef9245829a6f1dfad5afdfa3",
+        "rev": "62e0f05ede1da0d54515d4ea8ce9c733f12d9f08",
         "type": "github"
       },
       "original": {
@@ -717,11 +717,11 @@
         "nixpkgs": "nixpkgs_4"
       },
       "locked": {
-        "lastModified": 1752419974,
-        "narHash": "sha256-HUaDOYOTmADB+uq1GYsxQOk7RPQj34QHtVdt+enJoZ8=",
+        "lastModified": 1752809889,
+        "narHash": "sha256-oTIVrw7Cy2McAVqE7GCot5Fb8Wh4JBsUDKMX8u3DFlU=",
         "owner": "0xc000022070",
         "repo": "zen-browser-flake",
-        "rev": "fdebdbe6a41ed95b4d13790d62594521de21b5fe",
+        "rev": "f19d2b6b18d4a2e8bf2d6a9f69c934d6726360c4",
         "type": "github"
       },
       "original": {