diff --git a/nixos/doc/manual/release-notes/rl-2611.section.md b/nixos/doc/manual/release-notes/rl-2611.section.md
index bfa65265ff8f..b45905062209 100644
--- a/nixos/doc/manual/release-notes/rl-2611.section.md
+++ b/nixos/doc/manual/release-notes/rl-2611.section.md
@@ -16,6 +16,8 @@
 
 - [Nezha](https://github.com/nezhahq/nezha), a self-hosted, lightweight server and website monitoring and O&M tool. Available as [services.nezha](#opt-services.nezha.enable).
 
+- [CastSponsorSkip](https://github.com/gabe565/CastSponsorSkip/), skips YouTube sponsorships (and sometimes ads) on all local Google Cast devices.
+
 - [FlapAlerted](https://github.com/Kioubit/FlapAlerted), detects BGP flapping events and provides statistics based on BGP update messages. Available as [services.flap-alerted](#opt-services.flap-alerted.enable).
 
 ## Backward Incompatibilities {#sec-release-26.11-incompatibilities}
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 3467f312c430..16fc9633c33b 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -838,6 +838,7 @@
   ./services/misc/blenderfarm.nix
   ./services/misc/calibre-server.nix
   ./services/misc/canto-daemon.nix
+  ./services/misc/castsponsorskip.nix
   ./services/misc/cfdyndns.nix
   ./services/misc/cgminer.nix
   ./services/misc/clipcat.nix
diff --git a/nixos/modules/services/misc/castsponsorskip.nix b/nixos/modules/services/misc/castsponsorskip.nix
new file mode 100644
index 000000000000..0b7eb39de9c8
--- /dev/null
+++ b/nixos/modules/services/misc/castsponsorskip.nix
@@ -0,0 +1,49 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+let
+  cfg = config.services.castsponsorskip;
+in
+{
+  options = {
+    services.castsponsorskip = {
+      enable = lib.mkEnableOption "castsponsorskip";
+      package = lib.mkPackageOption pkgs "castsponsorskip" { };
+      config = lib.mkOption {
+        type = (pkgs.formats.yaml { }).type;
+        default = { };
+        example = {
+          CSS_SKIP_SPONSORS = false;
+        };
+        description = "Configuration for the service. List of options all options <https://github.com/gabe565/CastSponsorSkip/blob/main/docs/envs.md>.";
+      };
+    };
+  };
+  config = lib.mkIf cfg.enable {
+    systemd.services.castsponsorskip =
+      let
+        # Needed, even if empty, to avoid searching for a file in
+        # the user home directory, which doesn't exist for
+        # dynamic users
+        config = (pkgs.formats.yaml cfg.config).generate "config.yaml" { };
+      in
+      {
+        description = "Skip YouTube ads and sponsorships on all local Google Cast devices";
+        after = [ "network.target" ];
+        wantedBy = [ "multi-user.target" ];
+        serviceConfig = {
+          DynamicUser = true;
+          Restart = "always";
+          ExecStart = "${lib.getExe cfg.package} --config=${config}";
+          TimeoutStopSec = "20s";
+        };
+      };
+  };
+
+  meta = {
+    maintainers = with lib.maintainers; [ wariuccio ];
+  };
+}