Nix: add hyprutils dep

flake.nix

@@ -4,13 +4,20 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     systems.url = "github:nix-systems/default-linux";
+
+    hyprutils = {
+      url = "github:hyprwm/hyprutils";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.systems.follows = "systems";
+    };
   };
 
   outputs = {
     self,
     nixpkgs,
     systems,
-  }: let
+    ...
+  } @ inputs: let
     inherit (nixpkgs) lib;
     eachSystem = lib.genAttrs (import systems);
     pkgsFor = eachSystem (system:
@@ -26,13 +33,16 @@
   in {
     overlays = {
       default = self.overlays.hyprlang;
-      hyprlang = final: prev: {
-        hyprlang = final.callPackage ./nix/default.nix {
-          stdenv = final.gcc13Stdenv;
-          version = "0.pre" + "+date=" + (mkDate (self.lastModifiedDate or "19700101")) + "_" + (self.shortRev or "dirty");
-        };
-        hyprlang-with-tests = final.hyprlang.override {doCheck = true;};
-      };
+      hyprlang = lib.composeManyExtensions [
+        inputs.hyprutils.overlays.default
+        (final: prev: {
+          hyprlang = final.callPackage ./nix/default.nix {
+            stdenv = final.gcc13Stdenv;
+            version = "0.pre" + "+date=" + (mkDate (self.lastModifiedDate or "19700101")) + "_" + (self.shortRev or "dirty");
+          };
+          hyprlang-with-tests = final.hyprlang.override {doCheck = true;};
+        })
+      ];
     };
 
     packages = eachSystem (system: {

nix/default.nix

@@ -2,6 +2,8 @@
   lib,
   stdenv,
   cmake,
+  hyprutils,
+  pkg-config,
   version ? "git",
   doCheck ? false,
 }:
@@ -10,7 +12,12 @@ stdenv.mkDerivation {
   inherit version doCheck;
   src = ../.;
 
-  nativeBuildInputs = [cmake];
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+
+  buildInputs = [hyprutils];
 
   outputs = ["out" "dev"];