diff --git a/linux-mingw-w64-x86_64.cmake b/linux-mingw-w64-x86_64.cmake
new file mode 100644
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--- /dev/null
+++ b/linux-mingw-w64-x86_64.cmake
@@ -0,0 +1 @@
+# TODO: Toolchain file for Debian's MingW32 cross-compiler
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diff --git a/macos-mingw-w64-x86_64.cmake b/macos-mingw-w64-x86_64.cmake
new file mode 100644
index 0000000..991c7a3
--- /dev/null
+++ b/macos-mingw-w64-x86_64.cmake
@@ -0,0 +1,22 @@
+# Usage:
+#   *) Install cross-compiler: `brew install mingw-w64`
+#   *) cmake -DCMAKE_TOOLCHAIN_FILE=macos-mingw-w64-x86_64.cmake -B build -S .
+#   *) make -C build
+
+set(CMAKE_SYSTEM_NAME Windows)
+set(TOOLCHAIN_PREFIX x86_64-w64-mingw32)
+
+# Cross-compilers to use for C and C++
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
+
+# Target environment on the build host system (with Homebrew)
+set(CMAKE_FIND_ROOT_PATH /opt/homebrew/Cellar/mingw-w64/11.0.1/toolchain-x86_64/${TOOLCHAIN_PREFIX})
+
+# Search for programs in the build host directories
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+
+set(CMAKE_C_FLAGS "{CMAKE_C_FLAGS}" -static -Os)
+set(CMAKE_CXX_FLAGS "{CMAKE_CXX_FLAGS}" -static -Os)
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