syncyomi: fix failed checks on darwin

pkgs/by-name/sy/syncyomi/package.nix

@@ -2,6 +2,8 @@
   lib,
   stdenvNoCC,
   fetchFromGitHub,
+  iana-etc,
+  libredirect,
   buildGoModule,
   nodejs,
   pnpm_9,
@@ -79,6 +81,12 @@ buildGoModule (finalAttrs: {
     cp -r $web/* web/dist
   '';
 
+  nativeCheckInputs = lib.optionals stdenvNoCC.hostPlatform.isDarwin [ libredirect.hook ];
+
+  preCheck = lib.optionalString stdenvNoCC.hostPlatform.isDarwin ''
+    export NIX_REDIRECTS=/etc/protocols=${iana-etc}/etc/protocols:/etc/services=${iana-etc}/etc/services
+  '';
+
   ldflags = [
     "-s"
     "-w"