diff --git a/config/hosts/jellyseerr/configuration.nix b/config/hosts/jellyseerr/configuration.nix
index 05b8f3f..cf03358 100644
--- a/config/hosts/jellyseerr/configuration.nix
+++ b/config/hosts/jellyseerr/configuration.nix
@@ -10,6 +10,7 @@
     firewall = {
       allowedTCPPorts = [ 80 443 ];
     };
+    nameservers = [ "193.138.218.74" ];
     extraHosts =
       ''
         10.202.46.101 jellyfin.grzb.de
@@ -18,5 +19,10 @@
       '';
   };
 
+  services.resolved = {
+    enable = true;
+    fallbackDns = [ ];
+  };
+
   system.stateVersion = "23.11";
 }
diff --git a/config/hosts/jellyseerr/jellyseerr.nix b/config/hosts/jellyseerr/jellyseerr.nix
index bd473b0..8e406b0 100644
--- a/config/hosts/jellyseerr/jellyseerr.nix
+++ b/config/hosts/jellyseerr/jellyseerr.nix
@@ -1,6 +1,15 @@
-{ ... }:
+{ pkgs, ... }:
+let
+  jellyseerrOverlay = final: prev: {
+    jellyseerr = prev.jellyseerr.overrideAttrs (finalAttr: previousAttr: {
+      dontCheckForBrokenSymlinks = true;
+    });
+  };
+  pkgs-overlay = pkgs.extend jellyseerrOverlay;
+in
 {
   services.jellyseerr = {
     enable = true;
+    package = pkgs-overlay.jellyseerr;
   };
 }
diff --git a/config/hosts/mastodon/mastodon.nix b/config/hosts/mastodon/mastodon.nix
index 5aa22ad..d8ba670 100644
--- a/config/hosts/mastodon/mastodon.nix
+++ b/config/hosts/mastodon/mastodon.nix
@@ -16,14 +16,14 @@ let
   };
   mastodonNekoverseOverlay = final: prev: {
     mastodon = (prev.mastodon.override rec {
-      version = "4.3.3";
+      version = "4.3.4";
       srcOverride = final.applyPatches {
         src = pkgs.stdenv.mkDerivation {
           name = "mastodonWithThemes";
           src = pkgs.fetchgit {
             url = "https://github.com/mastodon/mastodon.git";
             rev = "v${version}";
-            sha256 = "sha256-6FyLhRy+/uW+RYt+IRHpkTABjKGTQYjR/4GSPN+GlGY=";
+            sha256 = "sha256-2FpiFSK9CBm7eHqVvV8pPp6fLc5jCcUektpSyxNnXtw=";
           };
           # mastodon ships with broken symlinks, disable the check for that for now
           dontCheckForBrokenSymlinks = true;
@@ -50,14 +50,6 @@ let
         ];
       };
       yarnHash = "sha256-e5c04M6XplAgaVyldU5HmYMYtY3MAWs+a8Z/BGSyGBg=";
-    }).overrideAttrs (old: {
-      mastodonModules = old.mastodonModules.overrideAttrs (old: {
-        # FIXME: Remove once fixed in nixpkgs. See https://github.com/NixOS/nixpkgs/issues/380366
-        postBuild = ''
-          # Remove workspace "package" as it contains broken symlinks
-          rm -r ~/node_modules/@mastodon
-        '';
-      });
     });
   };
   pkgs-overlay = pkgs.extend mastodonNekoverseOverlay;
diff --git a/flake.lock b/flake.lock
index 9645052..b83d314 100644
--- a/flake.lock
+++ b/flake.lock
@@ -55,11 +55,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1737057290,
-        "narHash": "sha256-3Pe0yKlCc7EOeq1X/aJVDH0CtNL+tIBm49vpepwL1MQ=",
+        "lastModified": 1740947705,
+        "narHash": "sha256-Co2kAD2SZalOm+5zoxmzEVZNvZ17TyafuFsD46BwSdY=",
         "owner": "nix-community",
         "repo": "nixos-generators",
-        "rev": "d002ce9b6e7eb467cd1c6bb9aef9c35d191b5453",
+        "rev": "507911df8c35939050ae324caccc7cf4ffb76565",
         "type": "github"
       },
       "original": {
@@ -70,11 +70,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1739188370,
-        "narHash": "sha256-2h/5uQaKwQeRXIgpOJpzgeO3qe93AonbJFk0CxTSygY=",
+        "lastModified": 1741237477,
+        "narHash": "sha256-WU1ktX7V2RwyPS0BSgdOjHc0vc/rDJtr22tzd5u3t+U=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "8ae4ee7978617d3af98721a62f14f25befc0beef",
+        "rev": "1907ea1e8f63d206c8bf7991552a539f8a4baeaa",
         "type": "github"
       },
       "original": {
@@ -101,11 +101,11 @@
     },
     "nixpkgs-master": {
       "locked": {
-        "lastModified": 1739319052,
-        "narHash": "sha256-L8Tq1dnW96U70vrNpCCGCLHz4rX1GhNRCrRI/iox9wc=",
+        "lastModified": 1741277795,
+        "narHash": "sha256-rS7qyqAQp6h0t3aS+FQgzliGV+Omh/4TdVnVnRSsGvg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "83a2581c81ff5b06f7c1a4e7cc736a455dfcf7b4",
+        "rev": "14a4a1f82773653ac1ac16ed577e42d927380802",
         "type": "github"
       },
       "original": {
@@ -117,11 +117,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1739303263,
-        "narHash": "sha256-c/Z/6gZLN8BIpYh1B3qMzEn0TArjf4F2lmy59lDLVBM=",
+        "lastModified": 1741241576,
+        "narHash": "sha256-/mxmUVd+AE2bTmulNfM7yICocUvavlFQHcMYK67z3qI=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6cc4213488e886db863878a1e3dc26cc932d38b8",
+        "rev": "ffe8d1b1030b5de6eba761102ee34b6e41d040ee",
         "type": "github"
       },
       "original": {
diff --git a/hosts.nix b/hosts.nix
index fc029b7..1dfc6fc 100644
--- a/hosts.nix
+++ b/hosts.nix
@@ -39,6 +39,7 @@ in
       environment = "proxmox";
     };
     jellyfin = {
+      hostNixpkgs = nixpkgs-unstable;
       site = "vs";
       environment = "proxmox";
     };