diff --git a/flake.nix b/flake.nix
index 09b6507..f9748a4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -140,8 +140,7 @@ rec {
             pre-commit = inputs.pre-commit-hooks.lib.${system}.run {
               src = ./.;
               hooks = {
-                nixfmt.enable = true;
-                nixfmt.package = pkgs.nixfmt-rfc-style;
+                nixfmt-rfc-style.enable = true;
                 shellcheck.enable = true;
               };
             };
diff --git a/home/configuradorfnmt.nix b/home/configuradorfnmt.nix
new file mode 100644
index 0000000..3da5db6
--- /dev/null
+++ b/home/configuradorfnmt.nix
@@ -0,0 +1,27 @@
+{
+  config,
+  lib,
+  inputs,
+  ...
+}:
+
+# Tool for Spanish digital certificates FNMT-RCM
+{
+  imports = [ inputs.autofirma-nix.homeManagerModules.default ];
+
+  programs.configuradorfnmt.enable = true;
+  programs.configuradorfnmt.firefoxIntegration.profiles = {
+    private.enable = true;
+  };
+
+  # programs.mullvad-browser.profiles = lib.flip lib.mapAttrs
+  #   config.programs.configuradorfnmt.firefoxIntegration.profiles (name:
+  #     { enable, ... }: {
+  #       settings = lib.mkIf enable {
+  #         "network.protocol-handler.app.fnmtcr" =
+  #           "${config.programs.configuradorfnmt.finalPackage}/bin/configuradorfnmt";
+  #         "network.protocol-handler.warn-external.fnmtcr" = false;
+  #         "network.protocol-handler.external.fnmtcr" = true;
+  #       };
+  #     });
+}
diff --git a/services/open-webui.nix b/services/open-webui.nix
new file mode 100644
index 0000000..eb659c7
--- /dev/null
+++ b/services/open-webui.nix
@@ -0,0 +1,9 @@
+{ pkgs, ... }:
+
+{
+  services.open-webui = {
+    enable = true;
+    package = pkgs.unstable.open-webui;
+    port = 11111;
+  };
+}