diff --git a/scripts/build_grub2_204.sh b/scripts/build_grub2_204.sh
index 07826d3..b7bbc27 100644
--- a/scripts/build_grub2_204.sh
+++ b/scripts/build_grub2_204.sh
@@ -9,8 +9,10 @@
 #
 # The hiperiso source tree in `src/grub2/` is retained for reference but
 # intentionally NOT compiled in here — it's an unfinished rebrand attempt
-# that's blocked on partial modsrc/sed mismatches. See `docs/STATUS.md`
-# (TODO) for the longer-term rebrand plan.
+# that's blocked on partial modsrc/sed mismatches. The substrate approach
+# is the supported path; the historical rebrand sources are kept only
+# for context. See INTERFACES.sh (Build Architecture section) for the
+# full rationale.
 #
 # Usage: scripts/build_grub2_204.sh
 # Output: grub2/bin/BOOTX64.EFI, grub2/bin/grubx64_real.efi, grub2/bin/grubx64.efi