diff --git a/flake.lock b/flake.lock
index fbfcb7521..132cbbba8 100644
--- a/flake.lock
+++ b/flake.lock
@@ -11,11 +11,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1647688999,
-        "narHash": "sha256-K99rYlmfCZmfam4m07hLZVg7m2zT5ul62wVGdpmjciA=",
+        "lastModified": 1649124276,
+        "narHash": "sha256-l1+vk7cvj4cjl83wRx/y1Jwdds4e8xAzpxHrXusEZ5A=",
         "owner": "m-labs",
         "repo": "artiq-comtools",
-        "rev": "7eb367b2df7510dd4fa7ccba3682b2ff64a5d982",
+        "rev": "e2d85f2e51ecdac463da752ef754e59572f9e119",
         "type": "github"
       },
       "original": {
@@ -45,11 +45,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1648584347,
-        "narHash": "sha256-m27UgTuWDO6rLkwNdxBeGXW7rLZbdl5vCp7afe0P4qo=",
+        "lastModified": 1649124608,
+        "narHash": "sha256-ZBmCeuOSZTxa9c9nbdFtSCDy940HlMAhNNh5TA42f1E=",
         "ref": "master",
-        "rev": "b8ef44d64eabf62175d2b3e900124e0607c7b4d3",
-        "revCount": 710,
+        "rev": "e05b0bf5dc427952a60b0dbe696de2ea239d9206",
+        "revCount": 724,
         "type": "git",
         "url": "https://git.m-labs.hk/m-labs/nac3.git"
       },
@@ -60,11 +60,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1647992509,
-        "narHash": "sha256-AG40Nt5OWz0LBs5p457emOuwLKOvTtcv/2fUdnEN3Ws=",
+        "lastModified": 1649024309,
+        "narHash": "sha256-AWbvj/NHZXVwAnHaVOFlxg7tcNerEKrKBmgGfztSHWM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d2caa9377539e3b5ff1272ac3aa2d15f3081069f",
+        "rev": "af0a9bc0e5341855518e9c1734d7ef913e5138b9",
         "type": "github"
       },
       "original": {
@@ -92,11 +92,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1647688038,
-        "narHash": "sha256-IceTSKu1sQB8sFmDTzvmurlEHWL1cV29N0mUY5F7vUY=",
+        "lastModified": 1649124180,
+        "narHash": "sha256-NxGYtKeUqvABCkCBixJ1cDJGTPooHh4I2MuWfj0i0Ok=",
         "owner": "m-labs",
         "repo": "sipyco",
-        "rev": "1a9a3062451f5c5b125b006d1b9bee997f986abd",
+        "rev": "0d61fba000d03692ee5aa66c813977e7db085c31",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 134a96551..94cd4b92d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -336,6 +336,8 @@
         };
       };
 
+      packages.x86_64-w64-mingw32 = import ./windows { inherit sipyco nac3 artiq-comtools; artiq = self; };
+
       inherit makeArtiqBoardPackage;
 
       defaultPackage.x86_64-linux = packages.x86_64-linux.python3-mimalloc.withPackages(ps: [ packages.x86_64-linux.artiq ]);
@@ -361,6 +363,9 @@
 
       hydraJobs = {
         inherit (packages.x86_64-linux) artiq artiq-board-kc705-nist_clock openocd-bscanspi;
+        sipyco-msys2-pkg = packages.x86_64-w64-mingw32.sipyco-pkg;
+        artiq-comtools-msys2-pkg = packages.x86_64-w64-mingw32.artiq-comtools-pkg;
+        artiq-msys2-pkg = packages.x86_64-w64-mingw32.artiq-pkg;
       };
     };
 
diff --git a/windows/PKGBUILD.artiq b/windows/PKGBUILD.artiq
new file mode 100644
index 000000000..6f6aefaa1
--- /dev/null
+++ b/windows/PKGBUILD.artiq
@@ -0,0 +1,8 @@
+pkgbase="mingw-w64-artiq"
+pkgname="mingw-w64-x86_64-artiq"
+pkgrel=1
+pkgdesc="A leading-edge control system for quantum information experiments"
+license=("LGPL")
+depends=("mingw-w64-x86_64-python")
+
+source PKGBUILD.common
diff --git a/windows/PKGBUILD.artiq-comtools b/windows/PKGBUILD.artiq-comtools
new file mode 100644
index 000000000..370c7436d
--- /dev/null
+++ b/windows/PKGBUILD.artiq-comtools
@@ -0,0 +1,8 @@
+pkgbase="mingw-w64-artiq-comtools"
+pkgname="mingw-w64-x86_64-artiq-comtools"
+pkgrel=1
+pkgdesc="Lightweight ARTIQ communication tools"
+license=("LGPL")
+depends=("mingw-w64-x86_64-python")
+
+source PKGBUILD.common
diff --git a/windows/PKGBUILD.common b/windows/PKGBUILD.common
new file mode 100644
index 000000000..78d493e8a
--- /dev/null
+++ b/windows/PKGBUILD.common
@@ -0,0 +1,19 @@
+arch=("any")
+mingw_arch=("mingw64")
+pkgver=${DRV_VERSION}
+url="https://m-labs.hk"
+source=("source.tar")
+sha256sums=("SKIP")
+
+build() {
+  mkdir mingw64
+  export PYTHONPATH=`pwd`/mingw64/lib/python3.9/site-packages
+  chmod +w -R source
+  cd source
+  wine-msys2-build python setup.py install --prefix=../mingw64
+  cd ..
+}
+
+package() {
+  cp -R mingw64 ${pkgdir}
+}
diff --git a/windows/PKGBUILD.sipyco b/windows/PKGBUILD.sipyco
new file mode 100644
index 000000000..d835bd1f3
--- /dev/null
+++ b/windows/PKGBUILD.sipyco
@@ -0,0 +1,8 @@
+pkgbase="mingw-w64-sipyco"
+pkgname="mingw-w64-x86_64-sipyco"
+pkgrel=1
+pkgdesc="Simple Python Communications"
+license=("LGPL")
+depends=("mingw-w64-x86_64-python")
+
+source PKGBUILD.common
diff --git a/windows/default.nix b/windows/default.nix
new file mode 100644
index 000000000..7d56e5c99
--- /dev/null
+++ b/windows/default.nix
@@ -0,0 +1,46 @@
+{ sipyco, nac3, artiq-comtools, artiq }:
+let
+  pkgs = import nac3.inputs.nixpkgs { system = "x86_64-linux"; };
+  makeMsys2 = { name, version, src }: pkgs.stdenvNoCC.mkDerivation {
+    pname = "${name}-msys2-pkg";
+    inherit version;
+    nativeBuildInputs = [
+      pkgs.pacman pkgs.fakeroot pkgs.libarchive pkgs.zstd pkgs.file
+      nac3.packages.x86_64-w64-mingw32.wine-msys2-build
+    ];
+    inherit src;
+    phases = [ "buildPhase" "installPhase" ];
+    buildPhase =
+      ''
+      export DRV_VERSION=${version}
+      ln -s ${./PKGBUILD.${name}} PKGBUILD
+      ln -s ${./PKGBUILD.common} PKGBUILD.common
+      ln -s $src source
+      tar cfh source.tar source
+      rm source
+      makepkg --config ${./makepkg.conf} --nodeps
+      '';
+    installPhase =
+      ''
+      mkdir $out $out/nix-support
+      cp *.pkg.tar.zst $out
+      echo file msys2 $out/*.pkg.tar.zst >> $out/nix-support/hydra-build-products
+      '';
+  };
+in {
+  sipyco-pkg = makeMsys2 {
+    name = "sipyco";
+    src = sipyco;
+    inherit (sipyco.packages.x86_64-linux.sipyco) version;
+  };
+  artiq-comtools-pkg = makeMsys2 {
+    name = "artiq-comtools";
+    src = artiq-comtools;
+    inherit (artiq-comtools.packages.x86_64-linux.artiq-comtools) version;
+  };
+  artiq-pkg = makeMsys2 {
+    name = "artiq";
+    src = artiq;
+    inherit (artiq.packages.x86_64-linux.artiq) version;
+  };
+}
diff --git a/windows/makepkg.conf b/windows/makepkg.conf
new file mode 100644
index 000000000..3238344eb
--- /dev/null
+++ b/windows/makepkg.conf
@@ -0,0 +1,2 @@
+PKGEXT='.pkg.tar.zst'
+SRCEXT='.src.tar.gz'