diff --git a/nixos/modules/services/monitoring/karma.nix b/nixos/modules/services/monitoring/karma.nix
index b7ec5e4ae6fb..2300067719ff 100644
--- a/nixos/modules/services/monitoring/karma.nix
+++ b/nixos/modules/services/monitoring/karma.nix
@@ -1,17 +1,16 @@
 { config, pkgs, lib, ... }:
-with lib;
 let
   cfg = config.services.karma;
   yaml = pkgs.formats.yaml { };
 in
 {
   options.services.karma = {
-    enable = mkEnableOption "the Karma dashboard service";
+    enable = lib.mkEnableOption "the Karma dashboard service";
 
-    package = mkPackageOption pkgs "karma" { };
+    package = lib.mkPackageOption pkgs "karma" { };
 
-    configFile = mkOption {
-      type = types.path;
+    configFile = lib.mkOption {
+      type = lib.types.path;
       default = yaml.generate "karma.yaml" cfg.settings;
       defaultText = "A configuration file generated from the provided nix attributes settings option.";
       description = ''
@@ -20,8 +19,8 @@ in
       example = "/etc/karma/karma.conf";
     };
 
-    environment = mkOption {
-      type = with types; attrsOf str;
+    environment = lib.mkOption {
+      type = with lib.types; attrsOf str;
       default = {};
       description = ''
         Additional environment variables to provide to karma.
@@ -32,16 +31,16 @@ in
       };
     };
 
-    openFirewall = mkOption {
-      type = types.bool;
+    openFirewall = lib.mkOption {
+      type = lib.types.bool;
       default = false;
       description = ''
         Whether to open ports in the firewall needed for karma to function.
       '';
     };
 
-    extraOptions = mkOption {
-      type = with types; listOf str;
+    extraOptions = lib.mkOption {
+      type = with lib.types; listOf str;
       default = [];
       description = ''
         Extra command line options.
@@ -51,13 +50,13 @@ in
       ];
     };
 
-    settings = mkOption {
-      type = types.submodule {
+    settings = lib.mkOption {
+      type = lib.types.submodule {
         freeformType = yaml.type;
 
         options.listen = {
-          address = mkOption {
-            type = types.str;
+          address = lib.mkOption {
+            type = lib.types.str;
             default = "127.0.0.1";
             description = ''
               Hostname or IP to listen on.
@@ -65,8 +64,8 @@ in
             example = "[::]";
           };
 
-          port = mkOption {
-            type = types.port;
+          port = lib.mkOption {
+            type = lib.types.port;
             default = 8080;
             description = ''
               HTTP port to listen on.
@@ -104,7 +103,7 @@ in
     };
   };
 
-  config = mkIf cfg.enable {
+  config = lib.mkIf cfg.enable {
     systemd.services.karma = {
       description = "Alert dashboard for Prometheus Alertmanager";
       wantedBy = [ "multi-user.target" ];
@@ -113,9 +112,9 @@ in
         Type = "simple";
         DynamicUser = true;
         Restart = "on-failure";
-        ExecStart = "${pkgs.karma}/bin/karma --config.file ${cfg.configFile} ${concatStringsSep " " cfg.extraOptions}";
+        ExecStart = "${pkgs.karma}/bin/karma --config.file ${cfg.configFile} ${lib.concatStringsSep " " cfg.extraOptions}";
       };
     };
-    networking.firewall.allowedTCPPorts = mkIf cfg.openFirewall [ cfg.settings.listen.port ];
+    networking.firewall.allowedTCPPorts = lib.mkIf cfg.openFirewall [ cfg.settings.listen.port ];
   };
 }