diff --git a/nixos/modules/services/networking/blockbook-frontend.nix b/nixos/modules/services/networking/blockbook-frontend.nix
index 504c98e9ab8e..6200a098c34a 100644
--- a/nixos/modules/services/networking/blockbook-frontend.nix
+++ b/nixos/modules/services/networking/blockbook-frontend.nix
@@ -1,7 +1,4 @@
 { config, lib, pkgs, ... }:
-
-with lib;
-
 let
 
   eachBlockbook = config.services.blockbook-frontend;
@@ -10,24 +7,24 @@ let
 
     options = {
 
-      enable = mkEnableOption "blockbook-frontend application";
+      enable = lib.mkEnableOption "blockbook-frontend application";
 
-      package = mkPackageOption pkgs "blockbook" { };
+      package = lib.mkPackageOption pkgs "blockbook" { };
 
-      user = mkOption {
-        type = types.str;
+      user = lib.mkOption {
+        type = lib.types.str;
         default = "blockbook-frontend-${name}";
         description = "The user as which to run blockbook-frontend-${name}.";
       };
 
-      group = mkOption {
-        type = types.str;
+      group = lib.mkOption {
+        type = lib.types.str;
         default = "${config.user}";
         description = "The group as which to run blockbook-frontend-${name}.";
       };
 
-      certFile = mkOption {
-        type = types.nullOr types.path;
+      certFile = lib.mkOption {
+        type = lib.types.nullOr lib.types.path;
         default = null;
         example = "/etc/secrets/blockbook-frontend-${name}/certFile";
         description = ''
@@ -36,15 +33,15 @@ let
         '';
       };
 
-      configFile = mkOption {
-        type = with types; nullOr path;
+      configFile = lib.mkOption {
+        type = with lib.types; nullOr path;
         default = null;
         example = "${config.dataDir}/config.json";
         description = "Location of the blockbook configuration file.";
       };
 
-      coinName = mkOption {
-        type = types.str;
+      coinName = lib.mkOption {
+        type = lib.types.str;
         default = "Bitcoin";
         description = ''
           See <https://github.com/trezor/blockbook/blob/master/bchain/coins/blockchain.go#L61>
@@ -52,68 +49,68 @@ let
         '';
       };
 
-      cssDir = mkOption {
-        type = types.path;
+      cssDir = lib.mkOption {
+        type = lib.types.path;
         default = "${config.package}/share/css/";
-        defaultText = literalExpression ''"''${package}/share/css/"'';
-        example = literalExpression ''"''${dataDir}/static/css/"'';
+        defaultText = lib.literalExpression ''"''${package}/share/css/"'';
+        example = lib.literalExpression ''"''${dataDir}/static/css/"'';
         description = ''
           Location of the dir with {file}`main.css` CSS file.
           By default, the one shipped with the package is used.
         '';
       };
 
-      dataDir = mkOption {
-        type = types.path;
+      dataDir = lib.mkOption {
+        type = lib.types.path;
         default = "/var/lib/blockbook-frontend-${name}";
         description = "Location of blockbook-frontend-${name} data directory.";
       };
 
-      debug = mkOption {
-        type = types.bool;
+      debug = lib.mkOption {
+        type = lib.types.bool;
         default = false;
         description = "Debug mode, return more verbose errors, reload templates on each request.";
       };
 
-      internal = mkOption {
-        type = types.nullOr types.str;
+      internal = lib.mkOption {
+        type = lib.types.nullOr lib.types.str;
         default = ":9030";
         description = "Internal http server binding `[address]:port`.";
       };
 
-      messageQueueBinding = mkOption {
-        type = types.str;
+      messageQueueBinding = lib.mkOption {
+        type = lib.types.str;
         default = "tcp://127.0.0.1:38330";
         description = "Message Queue Binding `address:port`.";
       };
 
-      public = mkOption {
-        type = types.nullOr types.str;
+      public = lib.mkOption {
+        type = lib.types.nullOr lib.types.str;
         default = ":9130";
         description = "Public http server binding `[address]:port`.";
       };
 
       rpc = {
-        url = mkOption {
-          type = types.str;
+        url = lib.mkOption {
+          type = lib.types.str;
           default = "http://127.0.0.1";
           description = "URL for JSON-RPC connections.";
         };
 
-        port = mkOption {
-          type = types.port;
+        port = lib.mkOption {
+          type = lib.types.port;
           default = 8030;
           description = "Port for JSON-RPC connections.";
         };
 
-        user = mkOption {
-          type = types.str;
+        user = lib.mkOption {
+          type = lib.types.str;
           default = "rpc";
           description = "Username for JSON-RPC connections.";
         };
 
-        password = mkOption {
-          type = types.str;
+        password = lib.mkOption {
+          type = lib.types.str;
           default = "rpc";
           description = ''
             RPC password for JSON-RPC connections.
@@ -122,8 +119,8 @@ let
           '';
         };
 
-        passwordFile = mkOption {
-          type = types.nullOr types.path;
+        passwordFile = lib.mkOption {
+          type = lib.types.nullOr lib.types.path;
           default = null;
           description = ''
             File containing password of the RPC user.
@@ -132,24 +129,24 @@ let
         };
       };
 
-      sync = mkOption {
-        type = types.bool;
+      sync = lib.mkOption {
+        type = lib.types.bool;
         default = true;
         description = "Synchronizes until tip, if together with zeromq, keeps index synchronized.";
       };
 
-      templateDir = mkOption {
-        type = types.path;
+      templateDir = lib.mkOption {
+        type = lib.types.path;
         default = "${config.package}/share/templates/";
-        defaultText = literalExpression ''"''${package}/share/templates/"'';
-        example = literalExpression ''"''${dataDir}/templates/static/"'';
+        defaultText = lib.literalExpression ''"''${package}/share/templates/"'';
+        example = lib.literalExpression ''"''${dataDir}/templates/static/"'';
         description = "Location of the HTML templates. By default, ones shipped with the package are used.";
       };
 
-      extraConfig = mkOption {
-        type = types.attrs;
+      extraConfig = lib.mkOption {
+        type = lib.types.attrs;
         default = {};
-        example = literalExpression '' {
+        example = lib.literalExpression '' {
           "alternative_estimate_fee" = "whatthefee-disabled";
           "alternative_estimate_fee_params" = "{\"url\": \"https://whatthefee.io/data.json\", \"periodSeconds\": 60}";
           "fiat_rates" = "coingecko";
@@ -174,8 +171,8 @@ let
         '';
       };
 
-      extraCmdLineOptions = mkOption {
-        type = types.listOf types.str;
+      extraCmdLineOptions = lib.mkOption {
+        type = lib.types.listOf lib.types.str;
         default = [];
         example = [ "-workers=1" "-dbcache=0" "-logtosderr" ];
         description = ''
@@ -190,8 +187,8 @@ in
   # interface
 
   options = {
-    services.blockbook-frontend = mkOption {
-      type = types.attrsOf (types.submodule blockbookOpts);
+    services.blockbook-frontend = lib.mkOption {
+      type = lib.types.attrsOf (lib.types.submodule blockbookOpts);
       default = {};
       description = "Specification of one or more blockbook-frontend instances.";
     };
@@ -199,10 +196,10 @@ in
 
   # implementation
 
-  config = mkIf (eachBlockbook != {}) {
+  config = lib.mkIf (eachBlockbook != {}) {
 
-    systemd.services = mapAttrs' (blockbookName: cfg: (
-      nameValuePair "blockbook-frontend-${blockbookName}" (
+    systemd.services = lib.mapAttrs' (blockbookName: cfg: (
+      lib.nameValuePair "blockbook-frontend-${blockbookName}" (
         let
           configFile = if cfg.configFile != null then cfg.configFile else
             pkgs.writeText "config.conf" (builtins.toJSON ( {
@@ -220,7 +217,7 @@ in
           preStart = ''
             ln -sf ${cfg.templateDir} ${cfg.dataDir}/static/
             ln -sf ${cfg.cssDir} ${cfg.dataDir}/static/
-            ${optionalString (cfg.rpc.passwordFile != null && cfg.configFile == null) ''
+            ${lib.optionalString (cfg.rpc.passwordFile != null && cfg.configFile == null) ''
               CONFIGTMP=$(mktemp)
               ${pkgs.jq}/bin/jq ".rpc_pass = \"$(cat ${cfg.rpc.passwordFile})\"" ${configFile} > $CONFIGTMP
               mv $CONFIGTMP ${cfg.dataDir}/${blockbookName}-config.json
@@ -237,11 +234,11 @@ in
                "-blockchaincfg=${configFile}"
                } \
                -datadir=${cfg.dataDir} \
-               ${optionalString (cfg.sync != false) "-sync"} \
-               ${optionalString (cfg.certFile != null) "-certfile=${toString cfg.certFile}"} \
-               ${optionalString (cfg.debug != false) "-debug"} \
-               ${optionalString (cfg.internal != null) "-internal=${toString cfg.internal}"} \
-               ${optionalString (cfg.public != null) "-public=${toString cfg.public}"} \
+               ${lib.optionalString (cfg.sync != false) "-sync"} \
+               ${lib.optionalString (cfg.certFile != null) "-certfile=${toString cfg.certFile}"} \
+               ${lib.optionalString (cfg.debug != false) "-debug"} \
+               ${lib.optionalString (cfg.internal != null) "-internal=${toString cfg.internal}"} \
+               ${lib.optionalString (cfg.public != null) "-public=${toString cfg.public}"} \
                ${toString cfg.extraCmdLineOptions}
             '';
             Restart = "on-failure";
@@ -251,23 +248,23 @@ in
         }
     ) )) eachBlockbook;
 
-    systemd.tmpfiles.rules = flatten (mapAttrsToList (blockbookName: cfg: [
+    systemd.tmpfiles.rules = lib.flatten (lib.mapAttrsToList (blockbookName: cfg: [
       "d ${cfg.dataDir} 0750 ${cfg.user} ${cfg.group} - -"
       "d ${cfg.dataDir}/static 0750 ${cfg.user} ${cfg.group} - -"
     ]) eachBlockbook);
 
-    users.users = mapAttrs' (blockbookName: cfg: (
-      nameValuePair "blockbook-frontend-${blockbookName}" {
+    users.users = lib.mapAttrs' (blockbookName: cfg: (
+      lib.nameValuePair "blockbook-frontend-${blockbookName}" {
       name = cfg.user;
       group = cfg.group;
       home = cfg.dataDir;
       isSystemUser = true;
     })) eachBlockbook;
 
-    users.groups = mapAttrs' (instanceName: cfg: (
-      nameValuePair "${cfg.group}" { })) eachBlockbook;
+    users.groups = lib.mapAttrs' (instanceName: cfg: (
+      lib.nameValuePair "${cfg.group}" { })) eachBlockbook;
   };
 
-  meta.maintainers = with maintainers; [ _1000101 ];
+  meta.maintainers = with lib.maintainers; [ _1000101 ];
 
 }