We can't operate with an empty vendor hash, so I've put in a dummy one
diff --git a/src/apps/personal/overlays/hubfs.nix b/src/apps/personal/overlays/hubfs.nix
index 6dd2c21..6a532eb 100644
--- a/src/apps/personal/overlays/hubfs.nix
+++ b/src/apps/personal/overlays/hubfs.nix
@@ -9,6 +9,6 @@
   hubfs = final.buildGoModule {
     name = "hubfs";
     inherit src;
-    vendorSha256 = null;
+    vendorSha256 = "sha256-R1nCdua0gacXrglQ4AZfxnO3ngVECCKKiUOgp3dWRGg=";
   };
 }