diff --git a/pkgbuilds/mil-hwx-compiler/.omarchy/package.json b/pkgbuilds/mil-hwx-compiler/.omarchy/package.json
new file mode 100644
index 0000000..ef0873a
--- /dev/null
+++ b/pkgbuilds/mil-hwx-compiler/.omarchy/package.json
@@ -0,0 +1,11 @@
+{
+  "source": "local",
+  "channels": ["edge"],
+  "min_release_age": "24h",
+  "upstream": {
+    "watch": {
+      "github": "joshuaswarren/mil-hwx-compiler",
+      "pattern": "v(?P<version>[0-9]+(?:\\.[0-9]+)*)"
+    }
+  }
+}
diff --git a/pkgbuilds/mil-hwx-compiler/PKGBUILD b/pkgbuilds/mil-hwx-compiler/PKGBUILD
new file mode 100644
index 0000000..85736f0
--- /dev/null
+++ b/pkgbuilds/mil-hwx-compiler/PKGBUILD
@@ -0,0 +1,110 @@
+# Maintainer: Joshua Warren <816217+joshuaswarren@users.noreply.github.com>
+
+pkgname=mil-hwx-compiler
+pkgver=0.1.0
+pkgrel=1
+pkgdesc='MIL-to-HWX compiler for the Apple Neural Engine (mil-hwxc)'
+arch=('aarch64')
+groups=('omarchy-platform-apple-silicon')
+url='https://github.com/joshuaswarren/mil-hwx-compiler'
+license=('MIT' 'LGPL-2.1-or-later')
+depends=('gcc-libs' 'glibc' 'icu' 'libffi' 'libxml2' 'zlib')
+makedepends=('clang' 'cmake' 'git' 'lld' 'ninja' 'robin-map')
+checkdepends=('python')
+# The compiler is Objective-C++ with ARC, so it needs the libobjc2 runtime and a
+# gnustep-base built for it. Arch's gnustep-base uses gcc's libobjc. This
+# package builds its own copy for $_prefix, from the commits that the
+# release's scripts/bootstrap-linux-toolchain.sh pins.
+_prefix=/usr/lib/mil-hwx-compiler
+_objc_commit=a1faad66cee79f29c4ca268b004111edc33a2ae2
+_make_commit=d0349cc83a23367acdc53df364f73504c281b26c
+_base_commit=3d7013e144b153abcd6c088dc8d6c64ebd43bc4b
+source=("$pkgname-$pkgver.tar.gz::$url/archive/refs/tags/v$pkgver.tar.gz"
+        "libobjc2::git+https://github.com/gnustep/libobjc2.git#commit=$_objc_commit"
+        "tools-make::git+https://github.com/gnustep/tools-make.git#commit=$_make_commit"
+        "libs-base::git+https://github.com/gnustep/libs-base.git#commit=$_base_commit")
+sha256sums=('9aa579212b5fddfc43c3438619ba7a41663459d26f1442a6105de6c7f1ba1772'
+            '8b791f7e39275d74e98caa4436e859fbc89cbbaa5818fa2f63d301c71234d6e7'
+            'dcc01f3da5b4c63bb841bae49d420c82342f667a88ec6e460206c1c991678277'
+            '1b4a16e2148d4ca0e3985cbde0f898529bba1c7c85862eeffc8e122ab6e6adf4')
+
+prepare() {
+  # A release that moves the toolchain pins must move them here too.
+  local bootstrap="$pkgname-$pkgver/scripts/bootstrap-linux-toolchain.sh"
+  grep -qx "objc_commit=$_objc_commit" "$bootstrap"
+  grep -qx "make_commit=$_make_commit" "$bootstrap"
+  grep -qx "base_commit=$_base_commit" "$bootstrap"
+}
+
+# The toolchain builds into $srcdir/gnustep, the way the bootstrap script does.
+# Only the runtime libraries ship, in $_prefix/lib.
+_toolchain_env() {
+  _gnustep="$srcdir/gnustep"
+  export CC=clang CXX=clang++ OBJC=clang OBJCXX=clang++
+  export CPPFLAGS="$CPPFLAGS -I$_gnustep/include"
+  export LDFLAGS="$LDFLAGS -L$_gnustep/lib -Wl,-rpath,$_prefix/lib -fuse-ld=lld"
+  export LD_LIBRARY_PATH="$_gnustep/lib" PATH="$_gnustep/bin:$PATH"
+}
+
+build() {
+  _toolchain_env
+
+  cmake -S libobjc2 -B build-libobjc2 -G Ninja \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX="$_gnustep" \
+    -DTESTS=OFF
+  cmake --build build-libobjc2
+  cmake --install build-libobjc2
+
+  (
+    cd tools-make
+    ./configure --prefix="$_gnustep" --with-layout=fhs \
+      --with-library-combo=ng-gnu-gnu --with-runtime-abi=gnustep-2.0 \
+      --enable-objc-arc --enable-native-objc-exceptions
+    make
+    make install
+  )
+
+  # gnustep-base compiles in the paths of a GNUstep.conf for when it finds no
+  # config file at run time. Give it the installed paths. The package ships no
+  # GNUstep.conf.
+  sed "s|$_gnustep|$_prefix|g" "$_gnustep/etc/GNUstep/GNUstep.conf" >GNUstep-installed.conf
+  (
+    export GNUSTEP_CONFIG_FILE="$_gnustep/etc/GNUstep/GNUstep.conf"
+    . "$_gnustep/share/GNUstep/Makefiles/GNUstep.sh"
+    cd libs-base
+    ./configure --prefix="$_gnustep" \
+      --with-config-file="$_prefix/etc/GNUstep/GNUstep.conf" \
+      --with-default-config="$srcdir/GNUstep-installed.conf" \
+      --disable-tls --disable-xslt --disable-zeroconf --disable-libdispatch \
+      --disable-nsurlsession
+    make
+    make install
+  )
+
+  make -C "$pkgname-$pkgver" build/mil-hwxc \
+    CXX="clang++ -Wl,-rpath,$_prefix/lib" \
+    GNUSTEP_PREFIX="$_gnustep" GNUSTEP_CONFIG="$_gnustep/bin/gnustep-config"
+}
+
+check() {
+  _toolchain_env
+  cd "$pkgname-$pkgver"
+  local mode
+  for mode in software-tests emit hygiene; do
+    GNUSTEP_PREFIX="$_gnustep" scripts/verify-linux-compiler.sh "$mode"
+  done
+}
+
+package() {
+  local lib="$srcdir/gnustep/lib"
+  install -d "$pkgdir$_prefix/lib"
+  cp -P "$lib"/libobjc.so* "$lib"/libgnustep-base.so* "$pkgdir$_prefix/lib/"
+  # gnustep-base's resources: languages, time zones, DTDs.
+  cp -r --no-preserve=ownership "$lib/GNUstep" "$pkgdir$_prefix/lib/"
+
+  install -Dm755 "$pkgname-$pkgver/build/mil-hwxc" "$pkgdir/usr/bin/mil-hwxc"
+  install -Dm644 "$pkgname-$pkgver/LICENSE" "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+  install -Dm644 libobjc2/COPYING "$pkgdir/usr/share/licenses/$pkgname/libobjc2-COPYING"
+  install -Dm644 libs-base/COPYING.LIB "$pkgdir/usr/share/licenses/$pkgname/libs-base-COPYING.LIB"
+}