diff --git a/common/boot.nix b/common/boot.nix
index a5d9155..f0f4b92 100644
--- a/common/boot.nix
+++ b/common/boot.nix
@@ -11,6 +11,19 @@ in
     efi.canTouchEfiVariables = true;
   };
 
+  boot.kernelPatches = optionals config.nixpkgs.hostPlatform.isx86 [
+    # Fix the /proc/net/tcp seek issue
+    # Impacts tailscale: https://github.com/tailscale/tailscale/issues/16966
+    {
+      name = "proc: fix missing pde_set_flags() for net proc files";
+      patch = pkgs.fetchurl {
+        name = "fix-missing-pde_set_flags-for-net-proc-files.patch";
+        url = "https://patchwork.kernel.org/project/linux-fsdevel/patch/20250821105806.1453833-1-wangzijie1@honor.com/raw/";
+        hash = "sha256-DbQ8FiRj65B28zP0xxg6LvW5ocEH8AHOqaRbYZOTDXg=";
+      };
+    }
+  ];
+
   services.resolved = {
     enable = true;
     fallbackDns = [ ];
diff --git a/flake.lock b/flake.lock
index 7ec5aa9..f667d2a 100644
--- a/flake.lock
+++ b/flake.lock
@@ -10,11 +10,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1760836749,
-        "narHash": "sha256-wyT7Pl6tMFbFrs8Lk/TlEs81N6L+VSybPfiIgzU8lbQ=",
+        "lastModified": 1754433428,
+        "narHash": "sha256-NA/FT2hVhKDftbHSwVnoRTFhes62+7dxZbxj5Gxvghs=",
         "owner": "ryantm",
         "repo": "agenix",
-        "rev": "2f0f812f69f3eb4140157fe15e12739adf82e32a",
+        "rev": "9edb1787864c4f59ae5074ad498b6272b3ec308d",
         "type": "github"
       },
       "original": {
@@ -52,11 +52,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1760948891,
-        "narHash": "sha256-TmWcdiUUaWk8J4lpjzu4gCGxWY6/Ok7mOK4fIFfBuU4=",
+        "lastModified": 1756770412,
+        "narHash": "sha256-+uWLQZccFHwqpGqr2Yt5VsW/PbeJVTn9Dk6SHWhNRPw=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "864599284fc7c0ba6357ed89ed5e2cd5040f0c04",
+        "rev": "4524271976b625a4a605beefd893f270620fd751",
         "type": "github"
       },
       "original": {
@@ -87,11 +87,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1758463745,
-        "narHash": "sha256-uhzsV0Q0I9j2y/rfweWeGif5AWe0MGrgZ/3TjpDYdGA=",
+        "lastModified": 1756679287,
+        "narHash": "sha256-Xd1vOeY9ccDf5VtVK12yM0FS6qqvfUop8UQlxEB+gTQ=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "3b955f5f0a942f9f60cdc9cacb7844335d0f21c3",
+        "rev": "07fc025fe10487dd80f2ec694f1cd790e752d0e8",
         "type": "github"
       },
       "original": {
@@ -108,11 +108,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761344779,
-        "narHash": "sha256-6LNSptFYhiAd0M/maJoixJw7V0Kp5BSoMRtIahcfu3M=",
+        "lastModified": 1757256385,
+        "narHash": "sha256-WK7tOhWwr15mipcckhDg2no/eSpM1nIh4C9le8HgHhk=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "c644cb018f9fdec55f5ac2afb4713a8c7beb757c",
+        "rev": "f35703b412c67b48e97beb6e27a6ab96a084cd37",
         "type": "github"
       },
       "original": {
@@ -123,11 +123,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1761173472,
-        "narHash": "sha256-m9W0dYXflzeGgKNravKJvTMR4Qqa2MVD11AwlGMufeE=",
+        "lastModified": 1757244434,
+        "narHash": "sha256-AeqTqY0Y95K1Fgs6wuT1LafBNcmKxcOkWnm4alD9pqM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "c8aa8cc00a5cb57fada0851a038d35c08a36a2bb",
+        "rev": "092c565d333be1e17b4779ac22104338941d913f",
         "type": "github"
       },
       "original": {
@@ -154,11 +154,11 @@
     },
     "nixpkgs-small": {
       "locked": {
-        "lastModified": 1761294158,
-        "narHash": "sha256-woFH58dy/EDeL1Li4IarZE9+0p0zdPmCsxCvKA7oYu4=",
+        "lastModified": 1757312038,
+        "narHash": "sha256-34XfbJT/fDl4OQNbtx1dHQRQGRodnHtZcM3VlM9d/5o=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e7b2e554a77018dec2f259b782d062500c133d49",
+        "rev": "16721e9cbabc2847dd62591e5ec8f2ea54379588",
         "type": "github"
       },
       "original": {
@@ -170,11 +170,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1761114652,
-        "narHash": "sha256-f/QCJM/YhrV/lavyCVz8iU3rlZun6d+dAiC3H+CDle4=",
+        "lastModified": 1757068644,
+        "narHash": "sha256-NOrUtIhTkIIumj1E/Rsv1J37Yi3xGStISEo8tZm3KW4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "01f116e4df6a15f4ccdffb1bcd41096869fb385c",
+        "rev": "8eb28adfa3dc4de28e792e3bf49fcf9007ca8ac9",
         "type": "github"
       },
       "original": {
@@ -186,11 +186,11 @@
     },
     "nixpkgs-unstable-small": {
       "locked": {
-        "lastModified": 1761293075,
-        "narHash": "sha256-bwBOolZn7sChWZ8JBCroQItOMJNBlLoJMxYk9mNXZ6E=",
+        "lastModified": 1757308260,
+        "narHash": "sha256-y/mYfpaSicNLq3AtR6BrgK7MZl4PiAWAfnYjKHr/zEA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "642fae6c6a7fbd9b9a61e2d3fc849c99bb4d485a",
+        "rev": "e568c4e9e6231f948f0d1f3c90859b41e8791186",
         "type": "github"
       },
       "original": {
@@ -210,11 +210,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761078382,
-        "narHash": "sha256-JNJesbe9MMN1Brq41BHEpuH+Z+Zg74y/nI5AFZX84Vw=",
+        "lastModified": 1756632588,
+        "narHash": "sha256-ydam6eggXf3ZwRutyCABwSbMAlX+5lW6w1SVZQ+kfSo=",
         "owner": "nix-community",
         "repo": "plasma-manager",
-        "rev": "27dfa61b64d0cdb8e4ba6f3aaa4d4e067d64cb5c",
+        "rev": "d47428e5390d6a5a8f764808a4db15929347cd77",
         "type": "github"
       },
       "original": {
@@ -226,11 +226,11 @@
     "randomcat": {
       "flake": false,
       "locked": {
-        "lastModified": 1761184576,
-        "narHash": "sha256-iU4BwJEpHkISUIM/9HjpFfWgD1dJPVWyhOAwKtPa5do=",
+        "lastModified": 1757296776,
+        "narHash": "sha256-j/0sale7a8dDl7fZJSujANEF8EGt6hHl+Cw1UXN8/Mk=",
         "owner": "randomnetcat",
         "repo": "nix-configs",
-        "rev": "f1963827395d6c82a7e64267fde9b0c82da02380",
+        "rev": "2fcdb2d229a34190cfa24edbeabf4f34bdd5099c",
         "type": "github"
       },
       "original": {
diff --git a/home/qenya/firefox.nix b/home/qenya/firefox.nix
index 969ab68..1748484 100644
--- a/home/qenya/firefox.nix
+++ b/home/qenya/firefox.nix
@@ -42,33 +42,6 @@ in
     };
 
     profiles.default = {
-      search = {
-        force = true;
-        default = "leta";
-        privateDefault = "leta";
-        order = [ "leta" "searxng" ];
-        engines = {
-          searxng = {
-            name = "SearXNG metasearch";
-            description = "SearXNG is a metasearch engine that respects your privacy.";
-            urls = [{
-              method = "POST";
-              template = "https://sx.catgirl.cloud/search";
-              params = [{ name = "q"; value = "{searchTerms}"; }];
-            }];
-            icon = "https://sx.catgirl.cloud/static/themes/simple/img/favicon.png";
-            definedAliases = [ "@sx" ];
-          };
-          leta = {
-            name = "Mullvad Leta";
-            description = "A privacy focused search engine provided by Mullvad.";
-            urls = [{ template = "https://leta.mullvad.net/search?q={searchTerms}&engine=google"; }];
-            iconMapObj."16" = "https://mullvad.net/favicon.ico";
-            definedAliases = [ "@leta" ];
-          };
-        };
-      };
-
       settings = {
         "browser.startup.page" = 3; # resume previous session
         "browser.newtabpage.activity-stream.showSponsored" = false;
diff --git a/hosts/kilgharrah/default.nix b/hosts/kilgharrah/default.nix
index 4fece58..87505c6 100644
--- a/hosts/kilgharrah/default.nix
+++ b/hosts/kilgharrah/default.nix
@@ -33,10 +33,7 @@ in
   users.users.qenya.hashedPasswordFile = config.age.secrets.user-password-kilgharrah-qenya.path;
   fountain.admins = [ "qenya" ];
   home-manager.users.qenya = { pkgs, ... }: {
-    home.packages = with pkgs; [
-      heroic
-      obs-studio
-    ];
+    home.packages = with pkgs; [ obs-studio ];
   };
 
   qenya.services.remote-builder = {