diff --git a/.github/workflows/wine_build/action.yml b/.github/workflows/wine_build/action.yml
index 321ff931e..aa25ecb01 100644
--- a/.github/workflows/wine_build/action.yml
+++ b/.github/workflows/wine_build/action.yml
@@ -33,3 +33,17 @@ runs:
     - name: Install
       shell: bash
       run: DESTDIR="$PWD"/install cmake --build build_${{ inputs.target }} -t install
+
+    - name: Configure UnixLib
+      shell: bash
+      run: |
+        cmake -S Source/Windows/UnixLib -B build_unixlib_${{ inputs.target }} -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
+          -G Ninja -DCMAKE_INSTALL_LIBDIR=/usr/lib/wine/aarch64-unix -DCMAKE_INSTALL_PREFIX=/usr
+
+    - name: Build UnixLib
+      shell: bash
+      run: cmake --build build_unixlib_${{ inputs.target }}
+
+    - name: Install UnixLib
+      shell: bash
+      run: DESTDIR="$PWD"/install cmake --build build_unixlib_${{ inputs.target }} -t install
diff --git a/.github/workflows/wine_dll_artifacts.yml b/.github/workflows/wine_dll_artifacts.yml
index 364b6a3e8..7a4ca69a0 100644
--- a/.github/workflows/wine_dll_artifacts.yml
+++ b/.github/workflows/wine_dll_artifacts.yml
@@ -50,6 +50,8 @@ jobs:
       with:
         overwrite: true
         name: wine_dll_artifacts
-        path: ${{ github.workspace }}/install/usr/lib/wine/aarch64-windows/lib*.dll
+        path: |
+          ${{ github.workspace }}/install/usr/lib/wine/aarch64-windows/lib*.dll
+          ${{ github.workspace }}/install/usr/lib/wine/aarch64-unix/lib*.so
         retention-days: 60
         compression-level: 9
diff --git a/Source/Windows/UnixLib/CMakeLists.txt b/Source/Windows/UnixLib/CMakeLists.txt
new file mode 100644
index 000000000..37eda6aa0
--- /dev/null
+++ b/Source/Windows/UnixLib/CMakeLists.txt
@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.14)
+project(FEXUnixLib CXX)
+
+include(GNUInstallDirs)
+
+function(CreateLib TargetName LibName)
+  add_library(${TargetName} SHARED FEXUnixLib.cpp)
+  set_target_properties(${TargetName} PROPERTIES OUTPUT_NAME ${LibName} PREFIX "lib" SUFFIX ".so")
+  target_link_libraries(${TargetName} PRIVATE rt)
+  install(TARGETS ${TargetName} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT Runtime)
+endfunction()
+
+CreateLib(wow64fex_unixlib wow64fex)
+CreateLib(arm64ecfex_unixlib arm64ecfex)
diff --git a/Source/Windows/UnixLib/FEXUnixLib.cpp b/Source/Windows/UnixLib/FEXUnixLib.cpp
new file mode 100644
index 000000000..4da192665
--- /dev/null
+++ b/Source/Windows/UnixLib/FEXUnixLib.cpp
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: MIT
+#include <cstdint>
+#include <type_traits>
+
+#include "FEXUnixLib.h"
+
+// Equivalent to C++23's std::to_underlying.
+template<typename Enum>
+[[nodiscard]]
+constexpr std::underlying_type_t<Enum> ToUnderlying(Enum e) noexcept {
+  return static_cast<std::underlying_type_t<Enum>>(e);
+}
+
+using NTSTATUS = int32_t;
+using unixlib_entry_t = NTSTATUS (*)(void*);
+
+constexpr NTSTATUS STATUS_SUCCESS = 0;
+constexpr NTSTATUS STATUS_NOT_SUPPORTED = 0xC00000BB;
+constexpr NTSTATUS STATUS_INTERNAL_ERROR = 0xC00000E5;
+
+extern "C" const unixlib_entry_t __wine_unix_call_funcs[] = {};
+
+static_assert(sizeof(__wine_unix_call_funcs) / sizeof(__wine_unix_call_funcs[0]) == ToUnderlying(FEXUnixLibFunctions::MAX));
diff --git a/Source/Windows/UnixLib/FEXUnixLib.h b/Source/Windows/UnixLib/FEXUnixLib.h
new file mode 100644
index 000000000..62cd15d29
--- /dev/null
+++ b/Source/Windows/UnixLib/FEXUnixLib.h
@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: MIT
+#pragma once
+
+enum class FEXUnixLibFunctions {
+  // Empty for now.
+  MAX,
+};