Use makeWrapper

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

packages/littlelink-server/default.nix

@@ -1,5 +1,5 @@
 { pkgs, ... }:
-# AUTO-UPDATE: nix-update --flake --version=branch=master littlelink-server --subpackage yarnSrc
+# AUTO-UPDATE: nix-update --flake --version=branch=master littlelink-server
 pkgs.stdenv.mkDerivation (finalAttrs: {
   pname = "littlelink-server";
   version = "0-unstable-2025-06-16";
@@ -11,41 +11,28 @@ pkgs.stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-BUPqXpiofHlLKgbOYkZr+QEoRIdRgr8alrUzcGS9edc=";
   };
 
-  yarnSrc = pkgs.stdenv.mkDerivation {
-    inherit (finalAttrs) src pname version;
-
-    offlineCache = pkgs.fetchYarnDeps {
-      yarnLock = finalAttrs.src + "/yarn.lock";
-      hash = "sha256-nv1NgMm56wWlAYqqdH9UKTnWNhjxWBs1lmG+UCCQAzk=";
-    };
-
-    nativeBuildInputs = with pkgs; [
-      nodejs
-      yarnConfigHook
-      yarnBuildHook
-      npmHooks.npmInstallHook
-    ];
-
-    yarnBuildFlags = [ "--noninteractive" ];
-
-    installPhase = ''
-      mkdir -p $out/lib/${finalAttrs.pname}
-      cp -r build node_modules $out/lib/${finalAttrs.pname}
-    '';
+  offlineCache = pkgs.fetchYarnDeps {
+    yarnLock = finalAttrs.src + "/yarn.lock";
+    hash = "sha256-nv1NgMm56wWlAYqqdH9UKTnWNhjxWBs1lmG+UCCQAzk=";
   };
 
-  wrapper = pkgs.writeShellApplication {
-    name = finalAttrs.pname;
-    runtimeInputs = with pkgs; [ nodejs_20 ];
-    text = ''
-      cd ${finalAttrs.yarnSrc}/lib/${finalAttrs.pname}
-      exec node build/server.js "$@"
-    '';
-  };
+  nativeBuildInputs = with pkgs; [
+    nodejs_20
+    yarnConfigHook
+    yarnBuildHook
+    npmHooks.npmInstallHook
+    makeWrapper
+  ];
+
+  yarnBuildFlags = [ "--noninteractive" ];
 
   installPhase = ''
-    mkdir -p $out/bin
-    cp ${finalAttrs.wrapper}/bin/${finalAttrs.pname} $out/bin/
+    mkdir -p $out/lib/${finalAttrs.pname}
+    cp -r build node_modules $out/lib/${finalAttrs.pname}
+
+    makeWrapper ${pkgs.nodejs_20}/bin/node $out/bin/${finalAttrs.pname} \
+      --run "cd $out/lib/${finalAttrs.pname}" \
+      --add-flag "build/server.js"
   '';
 
   meta.mainProgram = finalAttrs.pname;