diff --git a/ports/ggml/portfile.cmake b/ports/ggml/portfile.cmake
index 9d3ac41..60009e6 100644
--- a/ports/ggml/portfile.cmake
+++ b/ports/ggml/portfile.cmake
@@ -1,21 +1,22 @@
 # ggml vcpkg overlay port
 #
 # Builds the ggml tensor library from tetherto/qvac-ext-ggml.
-# Fork of ggml-org/ggml (commit a8db410a) with all overlay patches
-# pre-applied, plus the Wan-required Metal ops.  Pinned to the commit
-# used by stable-diffusion.cpp tag master-514-5792c66.
+# Fork of ggml-org/ggml (commit a8db410a) with all QVAC infrastructure
+# patches pre-applied as commits.  Pinned to the head of the `speech`
+# branch.
 #
-# Pinned to 05afdc5981 -- the merge commit of tetherto/qvac-ext-ggml#6,
-# which on top of the previous pin (e16bdae2) brings:
-#   - bc053644  metal: IM2COL_3D op + PAD left-padding for Wan video (#5)
-#   - 6d2d24bb  metal: tighten IM2COL_3D supports_op (src[1]==F32)
-#   - b1923e29  metal: extend IM2COL_3D supports_op for nb[0]==sizeof(float)
-#               and F16-dst => F16-kernel match
-#   - 05afdc59  Merge pull request #6 from aegioscy
-#
-# Without these the Metal backend aborts mid-Wan inference with
-# `unsupported op 'IM2COL_3D'` and the test-backend-ops support/test
-# matrix advertises invalid IM2COL_3D combos that hit CPU GGML_ASSERTs.
+# Pinned to 60a172e487 -- the merge commit of tetherto/qvac-ext-ggml#8,
+# which on top of the previous pin (05afdc59, the merge of #6) brings:
+#   - The Vulkan / Metal / CMake fixes cherry-picked from the
+#     2026-01-30 branch (persistent pipeline cache, GGML_LIB_OUTPUT_PREFIX,
+#     hybrid backend packaging, GGML_METAL_FUSE_MV_BIAS, std::filesystem
+#     pipeline-cache rename).  Merged via tetherto/qvac-ext-ggml#7.
+#   - The Supertonic 2 fused custom op family (ad40f3c7, #8): five fused
+#     Metal kernels with CPU forwards (depthwise_1d / layer_norm_channel /
+#     pw2_residual / bias_gelu / edge_pad_1d), plus a stride-parameterised
+#     body so the same compiled kernel handles both [T, C] and [C, T]
+#     activations via an op_params layout flag.  Consumed by tts-cpp's
+#     Supertonic Metal path in qvac-ext-lib-whisper.cpp#15.
 #
 # Installed artefacts:
 #   include/ggml.h  (+ other ggml public headers)
@@ -31,9 +32,9 @@
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO tetherto/qvac-ext-ggml
-    REF 05afdc5981031b8dcfd5f9cc979442b707b8486c
-    SHA512 a0caf41c6ba65474ad80e42f13dc20df0f28a876cc9e05b110bfaf745a8277f0904988bc9bef2cb2693f751fcc01cdeaf3af5463028532c74a83e676435cbeda
-    HEAD_REF 2026-01-30
+    REF 60a172e48f699bd0a00575ef911feed9473b2187
+    SHA512 dd73291c1f37d7969b0153c212efcb23c2257edcdb7056da83db6c0af33597ceaf3776ccc756a977a8b451b9e1c9b64eb0535c05f7a34e9a3212275032b3ad65
+    HEAD_REF speech
 )
 
 # --- GPU feature flags ---
diff --git a/ports/ggml/vcpkg.json b/ports/ggml/vcpkg.json
index 7867407..0afdb10 100644
--- a/ports/ggml/vcpkg.json
+++ b/ports/ggml/vcpkg.json
@@ -1,8 +1,8 @@
 {
   "name": "ggml",
   "version-date": "2026-01-30",
-  "port-version": 7,
-  "description": "Tensor library for machine learning (tetherto fork with overlay patches pre-applied, pinned to commit used by stable-diffusion.cpp master-514-5792c66; bumped to the merge of tetherto/qvac-ext-ggml#6 which adds the Wan-required Metal ops -- IM2COL_3D, PAD left-padding -- and tightens IM2COL_3D supports_op)",
+  "port-version": 8,
+  "description": "Tensor library for machine learning (tetherto fork with overlay patches pre-applied, pinned to commit used by stable-diffusion.cpp master-514-5792c66; bumped to the merge of tetherto/qvac-ext-ggml#8 which brings the Vulkan / Metal / CMake fixes from the 2026-01-30 branch plus the Supertonic 2 fused custom op family for tts-cpp consumption).",
   "homepage": "https://github.com/tetherto/qvac-ext-ggml",
   "license": "MIT",
   "dependencies": [
diff --git a/versions/baseline.json b/versions/baseline.json
index 55cf7ac..d7d00b1 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -18,7 +18,7 @@
     },
     "ggml": {
       "baseline": "2026-01-30",
-      "port-version": 7
+      "port-version": 8
     },
     "ggml-speech": {
       "baseline": "2026-04-09",
diff --git a/versions/g-/ggml.json b/versions/g-/ggml.json
index c15f753..6b48c02 100644
--- a/versions/g-/ggml.json
+++ b/versions/g-/ggml.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "f150b7fdaeda1882ba0c674b1d226b9aa8090576",
+      "version-date": "2026-01-30",
+      "port-version": 8
+    },
     {
       "git-tree": "f1632875558e71140230861014d8800edd935215",
       "version-date": "2026-01-30",