diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index f6314db3..c6c9095b 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -13,15 +13,20 @@ concurrency:
 
 jobs:
   build:
-    name: build (windows)
-    runs-on: windows-2022
     permissions:
       contents: read
       packages: write
     strategy:
       matrix:
         include:
-          - triplet: 'x64-windows'
+          - os: windows-2022
+            triplet: x64-windows
+            arch: amd64
+          - os: windows-11-arm
+            triplet: arm64-windows
+            arch: arm64
+    name: build (${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
 
     steps:
       - name: 🐣 Checkout
@@ -32,6 +37,8 @@ jobs:
 
       - name: 🧽 Developer Command Prompt for Microsoft Visual C++
         uses: ilammy/msvc-dev-cmd@v1
+        with:
+          arch: ${{ matrix.arch }}
 
       - name: 🐕 Checkout vcpkg
         uses: actions/checkout@v6
@@ -46,16 +53,15 @@ jobs:
         run: |
           PKG_SOURCE_USER=$(echo $GITHUB_REPOSITORY | cut -d '/' -f 1)
           ./vcpkg/bootstrap-vcpkg.sh
-          NUGET_EXE=$(./vcpkg/vcpkg fetch nuget)
+          NUGET_EXE=$(./vcpkg/vcpkg fetch nuget | tail -1)
           echo "Downloaded $NUGET_EXE"
           $NUGET_EXE sources add -Name ghpkg -Source "https://nuget.pkg.github.com/$PKG_SOURCE_USER/index.json" -UserName "$PKG_SOURCE_USER" -Password "${{ secrets.GITHUB_TOKEN }}" -StorePasswordInClearText
           $NUGET_EXE setapikey "${{ secrets.GITHUB_TOKEN }}" -Source "https://nuget.pkg.github.com/$PKG_SOURCE_USER/index.json"
-          echo "VCPKG_BINARY_SOURCES=clear;nuget,https://nuget.pkg.github.com/$PKG_SOURCE_USER/index.json,readwrite" >> $GITHUB_ENV
+          echo "VCPKG_BINARY_SOURCES=clear;nuget,https://nuget.pkg.github.com/$PKG_SOURCE_USER/index.json,readwrite;nugettimeout,3600" >> $GITHUB_ENV
           VCPKG_ROOT=$(cygpath -w $(pwd)/vcpkg)
           echo "$VCPKG_ROOT" >> $GITHUB_PATH
           echo "VCPKG_ROOT=$VCPKG_ROOT" >> $GITHUB_ENV
 
-
       - name: 🌋 Build
         shell: bash
         run: |
@@ -92,12 +98,22 @@ jobs:
             # ./vcpkg/vcpkg.exe install $VCPKG_OPTIONS py-jsonschema
             ./vcpkg/vcpkg.exe install $VCPKG_OPTIONS py-networkx
             ./vcpkg/vcpkg.exe install $VCPKG_OPTIONS py-pyproj
-            ./vcpkg/vcpkg.exe install $VCPKG_OPTIONS py-scipy
             ./vcpkg/vcpkg.exe install $VCPKG_OPTIONS py-matplotlib
-            ./vcpkg/vcpkg.exe install $VCPKG_OPTIONS 'arrow[acero,compute,core,csv,dataset,example,filesystem,flight,flightsql,gcs,json,mimalloc,orc,parquet,s3,python]'
 
             # py-pydantic   fails with ERROR: truststore not available
 
+      - name: 🌋 Build
+        shell: bash
+        if: matrix.triplet == 'x64-windows'
+        run: |
+            VCPKG_OPTIONS="--overlay-ports=${{ github.workspace }}/ports --triplet=${{ matrix.triplet }} --x-buildtrees-root=C:/vcpkg-build"
+
+            # lapack problems on arm64
+            ./vcpkg/vcpkg.exe install $VCPKG_OPTIONS py-scipy
+
+            # python executable is not properly propagated into the build system
+            ./vcpkg/vcpkg.exe install $VCPKG_OPTIONS 'arrow[acero,compute,core,csv,dataset,example,filesystem,flight,flightsql,gcs,json,mimalloc,orc,parquet,s3,python]'
+
       - name: 📑 Upload logs
         uses: actions/upload-artifact@v7
         if: failure()
diff --git a/ports/py-cython/portfile.cmake b/ports/py-cython/portfile.cmake
index 36d21a59..6722995e 100644
--- a/ports/py-cython/portfile.cmake
+++ b/ports/py-cython/portfile.cmake
@@ -6,6 +6,11 @@ vcpkg_from_github(
     HEAD_REF main
 )
 
+# Disable optimizations to fix ARM64 build
+if(MSVC)
+  set(ENV{_LINK_} "/LTCG:OFF")
+endif()
+
 vcpkg_python_build_and_install_wheel(SOURCE_PATH "${SOURCE_PATH}")
 
 vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/LICENSE.txt")
diff --git a/ports/py-cython/vcpkg.json b/ports/py-cython/vcpkg.json
index a1aabec3..4d97be48 100644
--- a/ports/py-cython/vcpkg.json
+++ b/ports/py-cython/vcpkg.json
@@ -1,6 +1,7 @@
 {
   "name": "py-cython",
   "version": "3.2.4",
+  "port-version": 1,
   "description": "Cython is a Python compiler that makes writing C extensions for Python as easy as Python itself. Cython is based on Pyrex, but supports more cutting edge functionality and optimizations.",
   "homepage": "https://cython.org/",
   "license": "Apache-2.0",
diff --git a/ports/py-numpy/portfile.cmake b/ports/py-numpy/portfile.cmake
index 6abf3329..4367e775 100644
--- a/ports/py-numpy/portfile.cmake
+++ b/ports/py-numpy/portfile.cmake
@@ -103,6 +103,13 @@ vcpkg_mesonpy_prepare_build_options(
 
 z_vcpkg_setup_pkgconfig_path(CONFIG "RELEASE")
 
+if(VCPKG_TARGET_IS_WINDOWS AND VCPKG_TARGET_ARCHITECTURE MATCHES "arm")
+  # On windows-arm64, import tests fail. numpy.random.mtrand.__all__ has a
+  # ' + 1) instead' entry. The bug does not reproduce at /O1 or
+  # higher.
+  set(ENV{CL} "/O2 $ENV{CL}")
+endif()
+
 list(APPEND meson_opts
   "--python.platlibdir" 
   "${CURRENT_INSTALLED_DIR}/${PYTHON3_SITE}"
diff --git a/ports/py-numpy/vcpkg.json b/ports/py-numpy/vcpkg.json
index 5f7a7416..6349ed8f 100644
--- a/ports/py-numpy/vcpkg.json
+++ b/ports/py-numpy/vcpkg.json
@@ -1,6 +1,7 @@
 {
   "name": "py-numpy",
   "version": "2.4.4",
+  "port-version": 1,
   "description": "The fundamental package for scientific computing with Python.",
   "homepage": "https://www.numpy.org/",
   "license": "BSD-3-Clause",
diff --git a/ports/py-scikit-build/vcpkg.json b/ports/py-scikit-build/vcpkg.json
index 41eb8f2e..c87bfe5a 100644
--- a/ports/py-scikit-build/vcpkg.json
+++ b/ports/py-scikit-build/vcpkg.json
@@ -1,6 +1,7 @@
 {
   "name": "py-scikit-build",
   "version": "0.19.0",
+  "port-version": 1,
   "description": "Improved build system generator for Python C/C++/Fortran/Cython extensions",
   "homepage": "https://github.com/scikit-build/scikit-build",
   "dependencies": [
@@ -8,6 +9,10 @@
       "name": "py-hatch-fancy-pypi-readme",
       "host": true
     },
+    {
+      "name": "py-hatch-vcs",
+      "host": true
+    },
     {
       "name": "py-setuptools",
       "host": true
diff --git a/ports/pybind11/android.diff b/ports/pybind11/android.diff
new file mode 100644
index 00000000..1067ff4f
--- /dev/null
+++ b/ports/pybind11/android.diff
@@ -0,0 +1,16 @@
+diff --git a/tools/pybind11NewTools.cmake b/tools/pybind11NewTools.cmake
+index e881ca7..c012e2d 100644
+--- a/tools/pybind11NewTools.cmake
++++ b/tools/pybind11NewTools.cmake
+@@ -248,10 +248,7 @@ if(TARGET ${_Python}::Module)
+   # files.
+   get_target_property(module_target_type ${_Python}::Module TYPE)
+   if(ANDROID AND module_target_type STREQUAL INTERFACE_LIBRARY)
+-    set_property(
+-      TARGET ${_Python}::Module
+-      APPEND
+-      PROPERTY INTERFACE_LINK_LIBRARIES "${${_Python}_LIBRARIES}")
++    target_link_libraries(${_Python}::Module INTERFACE ${${_Python}_LIBRARIES})
+   endif()
+ 
+   set_property(
diff --git a/ports/pybind11/portfile.cmake b/ports/pybind11/portfile.cmake
index c1f3cf8c..dfd314bd 100644
--- a/ports/pybind11/portfile.cmake
+++ b/ports/pybind11/portfile.cmake
@@ -2,10 +2,10 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO pybind/pybind11
     REF "v${VERSION}"
-    SHA512 497c25b33b09a9c42f67131ab82e35d689e8ce089dd7639be997305ff9a6d502447b79c824508c455d559e61f0186335b54dd2771d903a7c1621833930622d1a
+    SHA512 c17e6d6a78c38e760864b390ac2aa7df6a94ca53acb2e8be71f0d63d611b738fa20a16946c98a93fbfcad56cb0346ebf247bbe41c6f5171c6ce68397b1e5c4db
     HEAD_REF master
     PATCHES
-        fix-debug-link.patch
+        android.diff
 )
 
 vcpkg_cmake_configure(
diff --git a/ports/pybind11/usage b/ports/pybind11/usage
index 83162ad9..54cf3e6e 100644
--- a/ports/pybind11/usage
+++ b/ports/pybind11/usage
@@ -1,23 +1,12 @@
-pybind11 provides CMake targets. There are two modes provided; classic, which is built on the old Python
-discovery packages in CMake, or the new FindPython mode, which uses FindPython
-from 3.12+ forward (3.15+ _highly_ recommended).
-
-New FindPython mode:
-
-    find_package(Python COMPONENTS Interpreter Development)
-    find_package(pybind11 CONFIG)
-
-    # pybind11 method:
-    pybind11_add_module(MyModule1 src1.cpp)
-
-    # Python method:
-    Python_add_library(MyModule2 src2.cpp)
-    target_link_libraries(MyModule2 pybind11::headers)
-    set_target_properties(MyModule2 PROPERTIES
-        INTERPROCEDURAL_OPTIMIZATION ON
-        CXX_VISIBILITY_PRESET ON
-        VISIBILITY_INLINES_HIDDEN ON
-    )
-
-For more information see here:
-    https://pybind11.readthedocs.io/en/latest/compiling.html#building-with-cmake
\ No newline at end of file
+pybind11 provides CMake integration:
+
+  # Easy
+  set(PYBIND11_FINDPYTHON ON)
+  find_package(pybind11 CONFIG REQUIRED)
+  pybind11_add_module(MyModule1 src1.cpp)
+
+  # Advanced
+  find_package(Python COMPONENTS Interpreter Development)
+  find_package(pybind11 CONFIG REQUIRED)
+  Python_add_library(MyModule2 src2.cpp)
+  target_link_libraries(MyModule2 PRIVATE pybind11::headers)
diff --git a/ports/pybind11/vcpkg.json b/ports/pybind11/vcpkg.json
index 083dd788..ca637bb6 100644
--- a/ports/pybind11/vcpkg.json
+++ b/ports/pybind11/vcpkg.json
@@ -1,11 +1,19 @@
 {
   "name": "pybind11",
-  "version": "2.13.6",
+  "version": "3.0.1",
   "description": "pybind11 is a lightweight header-only library that exposes C++ types in Python and vice versa, mainly to create Python bindings of existing C++ code",
   "homepage": "https://github.com/pybind/pybind11",
+  "documentation": "https://pybind11.readthedocs.io/",
   "license": "BSD-3-Clause",
-  "supports": "!(arm & windows)",
   "dependencies": [
+    {
+      "name": "py-scikit-build-core",
+      "host": true
+    },
+    {
+      "name": "python3",
+      "default-features": false
+    },
     {
       "name": "vcpkg-cmake",
       "host": true
diff --git a/versions/baseline.json b/versions/baseline.json
index 83d1b62f..1209680d 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -94,7 +94,7 @@
     },
     "py-cython": {
       "baseline": "3.2.4",
-      "port-version": 0
+      "port-version": 1
     },
     "py-dateutil": {
       "baseline": "2.9.0",
@@ -230,7 +230,7 @@
     },
     "py-numpy": {
       "baseline": "2.4.4",
-      "port-version": 0
+      "port-version": 1
     },
     "py-owslib": {
       "baseline": "0.35.0",
@@ -382,7 +382,7 @@
     },
     "py-scikit-build": {
       "baseline": "0.19.0",
-      "port-version": 0
+      "port-version": 1
     },
     "py-scikit-build-core": {
       "baseline": "0.12.2",
@@ -473,7 +473,7 @@
       "port-version": 0
     },
     "pybind11": {
-      "baseline": "2.13.6",
+      "baseline": "3.0.1",
       "port-version": 0
     },
     "python3": {
diff --git a/versions/p-/py-cython.json b/versions/p-/py-cython.json
index cddf149d..fe482dae 100644
--- a/versions/p-/py-cython.json
+++ b/versions/p-/py-cython.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "c6a191acf040760c520157c6767ca9dc27d01479",
+      "version": "3.2.4",
+      "port-version": 1
+    },
     {
       "git-tree": "64b13a6b82fd4dbc32ab37abe42b43d32579f9af",
       "version": "3.2.4",
diff --git a/versions/p-/py-numpy.json b/versions/p-/py-numpy.json
index 345d3a52..4a51e100 100644
--- a/versions/p-/py-numpy.json
+++ b/versions/p-/py-numpy.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "6e97d2ea2236b4214e61a7126a0cf3e150f82b86",
+      "version": "2.4.4",
+      "port-version": 1
+    },
     {
       "git-tree": "67ba1ea3fc06fa258e49035cd6f96b1b2cd7cd28",
       "version": "2.4.4",
diff --git a/versions/p-/py-scikit-build.json b/versions/p-/py-scikit-build.json
index a23465ae..144f6de2 100644
--- a/versions/p-/py-scikit-build.json
+++ b/versions/p-/py-scikit-build.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "f5749672ad70d2a0dea4ad475dde13cbcdee8720",
+      "version": "0.19.0",
+      "port-version": 1
+    },
     {
       "git-tree": "b5d49a288ced3eb6eee8c30bd0ff78a876e7f0ea",
       "version": "0.19.0",
diff --git a/versions/p-/pybind11.json b/versions/p-/pybind11.json
index adfcb05c..e90e9a41 100644
--- a/versions/p-/pybind11.json
+++ b/versions/p-/pybind11.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "5c10617610b49fe60527e7747f0bbab7b584836a",
+      "version": "3.0.1",
+      "port-version": 0
+    },
     {
       "git-tree": "8463c362dc76ea57c68350f3e5bc8c540aa6e770",
       "version": "2.13.6",