diff --git a/.github/test.sh b/.github/test.sh
new file mode 100755
index 000000000..f49eee291
--- /dev/null
+++ b/.github/test.sh
@@ -0,0 +1,17 @@
+#!/usr/bin/env sh
+
+suffix=-11
+
+git clone https://github.com/steveicarus/ivtest.git
+cd ivtest
+
+if [ "$OS" = 'Windows_NT' ]; then
+  perl update_msys2_report.pl
+  perl vvp_reg.pl $suffix
+  diff --strip-trailing-cr regression_report-msys2.txt regression_report.txt
+else
+  perl vvp_reg.pl $suffix
+  diff regression_report-devel.txt regression_report.txt
+fi
+
+perl vpi_reg.pl $suffix
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 000000000..32d2ae3d0
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,85 @@
+name: test
+
+on:
+  push:
+  pull_request:
+
+jobs:
+
+
+  lin:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [
+          '18.04',
+          '20.04'
+        ]
+    runs-on: ubuntu-${{ matrix.os }}
+    name: '🐧 Ubuntu ${{ matrix.os }}'
+    steps:
+
+    - uses: actions/checkout@v2
+
+    - name: Install dependencies
+      run: |
+        sudo apt update -qq
+        sudo apt install -y make g++ git bison flex gperf libreadline-dev autoconf
+
+    - name: Build, install and check
+      run: |
+        autoconf
+        ./configure
+        sudo make install
+        make check
+
+    - name: Test
+      run: ./.github/test.sh
+
+
+  win:
+    runs-on: windows-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include: [
+          { msystem: MINGW64, arch: x86_64 },
+          { msystem: MINGW32, arch: i686 }
+        ]
+    name: 🟪 ${{ matrix.msystem}} · ${{ matrix.arch }}
+    defaults:
+      run:
+        shell: msys2 {0}
+    env:
+      MINGW_INSTALLS: ${{ matrix.msystem }}
+    steps:
+
+    - run: git config --global core.autocrlf input
+      shell: bash
+
+    - uses: actions/checkout@v2
+
+    - uses: msys2/setup-msys2@v2
+      with:
+        msystem: ${{ matrix.msystem }}
+        update: true
+        install: >
+          git
+          base-devel
+          mingw-w64-${{ matrix.arch }}-toolchain
+
+    - name: Build and check
+      run: |
+        cd msys2
+        makepkg-mingw --noconfirm --noprogressbar -sCLf
+
+    - name: Install
+      run: pacman -U --noconfirm msys2/*.zst
+
+    - name: Test
+      run: ./.github/test.sh
+
+    - uses: actions/upload-artifact@v2
+      with:
+        name: ${{ matrix.msystem }}-${{ matrix.arch }}
+        path: msys2/*.zst
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 6b4e8c3b6..000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,71 +0,0 @@
-language: cpp
-sudo: required
-dist: xenial
-
-addons:
-  apt:
-    packages:
-    - gperf
-
-sudo: false
-
-notifications:
-  email: false
-
-jobs:
-  include:
-  
-    - stage: Test
-      os: linux
-      dist: xenial
-      before_install:
-        - git clone https://github.com/steveicarus/ivtest.git
-        - export PATH=$HOME/bin:$PATH
-      script:
-        - autoconf
-        - ./configure --prefix=$HOME
-        - make install
-        - make check
-        - cd ivtest
-        - perl vvp_reg.pl
-        - diff regression_report-devel.txt regression_report.txt
-        - perl vpi_reg.pl
-
-    - stage: Test
-      os: linux
-      dist: bionic
-      before_install:
-        - git clone https://github.com/steveicarus/ivtest.git
-        - export PATH=$HOME/bin:$PATH
-      script:
-        - autoconf
-        - ./configure --prefix=$HOME
-        - make install
-        - make check
-        - cd ivtest
-        - perl vvp_reg.pl
-        - diff regression_report-devel.txt regression_report.txt
-        - perl vpi_reg.pl
-
-    - stage: Test
-      os: windows
-      before_install:
-        - git clone https://github.com/steveicarus/ivtest.git
-        - choco uninstall -y mingw
-        - choco upgrade --no-progress -y msys2
-        - export msys2='cmd //C RefreshEnv.cmd '
-        - export msys2+='& set MSYS=winsymlinks:nativestrict '
-        - export msys2+='& C:\\tools\\msys64\\msys2_shell.cmd -defterm -no-start'
-        - export mingw64="$msys2 -mingw64 -full-path -here -c "\"\$@"\" --"
-        - export msys2+=" -msys2 -c "\"\$@"\" --"
-        - $msys2 pacman --sync --noconfirm --needed base-devel mingw-w64-x86_64-toolchain
-      script:
-        - $mingw64 ./autoconf.sh
-        - $mingw64 ./configure
-        - $mingw64 make install
-        - $mingw64 make check
-        - cd ivtest
-        - $mingw64 perl update_msys2_report.pl
-        - $mingw64 perl vvp_reg.pl
-        - diff --strip-trailing-cr regression_report-msys2.txt regression_report.txt
-        - $mingw64 perl vpi_reg.pl
diff --git a/msys2/PKGBUILD b/msys2/PKGBUILD
new file mode 100644
index 000000000..999f22f79
--- /dev/null
+++ b/msys2/PKGBUILD
@@ -0,0 +1,37 @@
+_realname=iverilog
+pkgbase=mingw-w64-${_realname}
+pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
+pkgver=11-ci
+pkgrel=1
+pkgdesc="Icarus Verilog, a Verilog simulation and synthesis tool (mingw-w64)"
+arch=('any')
+url="http://iverilog.icarus.com/"
+license=('GPLv2+')
+depends=("${MINGW_PACKAGE_PREFIX}-readline"
+         "${MINGW_PACKAGE_PREFIX}-gcc-libs")
+makedepends=("${MINGW_PACKAGE_PREFIX}-gcc"
+             "${MINGW_PACKAGE_PREFIX}-ghostscript")
+
+source=()
+sha256sums=()
+
+build() {
+  cd "${srcdir}"/../..
+  sh autoconf.sh
+  ./configure \
+    --prefix="${MINGW_PREFIX}" \
+    --host="$CARCH"-w64-mingw32
+  mingw32-make
+}
+
+check() {
+  cd "${srcdir}"/../..
+  mingw32-make check
+}
+
+package() {
+  cd "${srcdir}"/../..
+  mingw32-make DESTDIR="${pkgdir}" install
+  mkdir -p "${pkgdir}${MINGW_PREFIX}/share/doc/${_realname}"
+  mv "${pkgdir}${MINGW_PREFIX}"/*.pdf "${pkgdir}${MINGW_PREFIX}/share/doc/${_realname}"
+}