update

nix/module.nix

@@ -1,16 +1,24 @@
-inputs: {
+inputs:
+{
   config,
   lib,
   pkgs,
   ...
-}: let
+}:
+let
   cfg = config.cloudns;
   package = inputs.self.packages.${pkgs.stdenv.hostPlatform.system}.default;
-  inherit (lib) mkIf mkEnableOption mkOption types;
+  inherit (lib)
+    mkIf
+    mkEnableOption
+    mkOption
+    types
+    ;
 
-  format = pkgs.formats.json {};
+  format = pkgs.formats.json { };
   configFile = format.generate "config.json" cfg.settings;
-in {
+in
+{
   options.cloudns = {
     enable = mkEnableOption "cloudns";
 
@@ -23,36 +31,37 @@ in {
     };
 
     settings = mkOption {
-      type = with types; let
-        valueType = nullOr (oneOf [
-          # TODO: restrict type to actual config file structure
-          bool
-          int
-          float
-          str
-          path
-          (attrsOf valueType)
-          (listOf valueType)
-        ]);
-      in
+      type =
+        with types;
+        let
+          valueType = nullOr (oneOf [
+            bool
+            int
+            float
+            str
+            path
+            (attrsOf valueType)
+            (listOf valueType)
+          ]);
+        in
         valueType;
       default = throw "Please specify cloudns.settings";
     };
   };
 
   config = mkIf cfg.enable {
-    environment.systemPackages = [package];
+    environment.systemPackages = [ package ];
 
     systemd.services.cloudns = mkIf (cfg.timer != null) {
       script = "${package}/bin/cloudns --config ${configFile}";
-      requires = ["network-online.target"];
+      requires = [ "network-online.target" ];
       serviceConfig = {
         Type = "oneshot";
       };
     };
 
     systemd.timers.cloudns = mkIf (cfg.timer != null) {
-      wantedBy = ["timers.target"];
+      wantedBy = [ "timers.target" ];
       timerConfig = {
         OnBootSec = "0s";
         OnUnitActiveSec = "${toString cfg.timer}s";