diff --git a/.github/workflows/freebsd.yml b/.github/workflows/freebsd.yml
new file mode 100644
index 00000000..807181da
--- /dev/null
+++ b/.github/workflows/freebsd.yml
@@ -0,0 +1,22 @@
+name: FreeBSD
+
+on:
+  push:
+  pull_request:
+  schedule:
+    # min hours day(month) month day(week)
+    - cron: '0 0 7,22 * *'
+
+jobs:
+  # Only MacOS hosted runner provides virtualisation with vagrant/virtualbox installed.
+  # see: https://github.com/actions/virtual-environments/tree/main/images/macos
+  freebsd:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: vagrant version
+      run: Vagrant --version
+    - name: VirtualBox version
+      run: virtualbox -h
+    - name: Build
+      run: cd ci/vagrant/freebsd && vagrant up
diff --git a/.gitignore b/.gitignore
index 62854246..febb530b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 cmake_build/
 build/
 
+.vagrant/
 *.swp
diff --git a/ci/vagrant/freebsd/Vagrantfile b/ci/vagrant/freebsd/Vagrantfile
new file mode 100644
index 00000000..7ef7bfad
--- /dev/null
+++ b/ci/vagrant/freebsd/Vagrantfile
@@ -0,0 +1,102 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# All Vagrant configuration is done below. The "2" in Vagrant.configure
+# configures the configuration version (we support older styles for
+# backwards compatibility). Please don't change it unless you know what
+# you're doing.
+Vagrant.configure("2") do |config|
+  # The most common configuration options are documented and commented below.
+  # For a complete reference, please see the online documentation at
+  # https://docs.vagrantup.com.
+
+  # Every Vagrant development environment requires a box. You can search for
+  # boxes at https://vagrantcloud.com/search.
+  config.vm.guest = :freebsd
+  config.vm.box = "generic/freebsd12"
+
+  config.ssh.shell = "sh"
+
+  # Disable automatic box update checking. If you disable this, then
+  # boxes will only be checked for updates when the user runs
+  # `vagrant box outdated`. This is not recommended.
+  # config.vm.box_check_update = false
+
+  # Create a forwarded port mapping which allows access to a specific port
+  # within the machine from a port on the host machine. In the example below,
+  # accessing "localhost:8080" will access port 80 on the guest machine.
+  # NOTE: This will enable public access to the opened port
+  # config.vm.network "forwarded_port", guest: 80, host: 8080
+
+  # Create a forwarded port mapping which allows access to a specific port
+  # within the machine from a port on the host machine and only allow access
+  # via 127.0.0.1 to disable public access
+  # config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"
+
+  # Create a private network, which allows host-only access to the machine
+  # using a specific IP.
+  # config.vm.network "private_network", ip: "192.168.33.10"
+
+  # Create a public network, which generally matched to bridged network.
+  # Bridged networks make the machine appear as another physical device on
+  # your network.
+  # config.vm.network "public_network"
+
+  # Share an additional folder to the guest VM. The first argument is
+  # the path on the host to the actual folder. The second argument is
+  # the path on the guest to mount the folder. And the optional third
+  # argument is a set of non-required options.
+  #config.vm.synced_folder "../../..", "/home/vagrant/project"
+  config.vm.synced_folder ".", "/vagrant", id: "vagrant-root", disabled: true
+
+  config.vm.provision "file", source: "../../../CMakeLists.txt", destination: "$HOME/project/"
+  config.vm.provision "file", source: "../../../cmake", destination: "$HOME/project/"
+  config.vm.provision "file", source: "../../../include", destination: "$HOME/project/"
+  config.vm.provision "file", source: "../../../src", destination: "$HOME/project/"
+  config.vm.provision "file", source: "../../../test", destination: "$HOME/project/"
+
+  # Provider-specific configuration so you can fine-tune various
+  # backing providers for Vagrant. These expose provider-specific options.
+  # Example for VirtualBox:
+  #
+  # config.vm.provider "virtualbox" do |vb|
+  #   # Display the VirtualBox GUI when booting the machine
+  #   vb.gui = true
+  #
+  #   # Customize the amount of memory on the VM:
+  #   vb.memory = "1024"
+  # end
+  #
+  # View the documentation for the provider you are using for more
+  # information on available options.
+
+  # Enable provisioning with a shell script. Additional provisioners such as
+  # Ansible, Chef, Docker, Puppet and Salt are also available. Please see the
+  # documentation for more information about their specific syntax and use.
+  # note: clang installed by default
+  config.vm.provision "env", type: "shell", inline:<<-SHELL
+  set -x
+  pkg update -f
+  pkg install -y git cmake
+  SHELL
+  config.vm.provision "devel", type: "shell", inline:<<-SHELL
+  set -x
+  cd project
+  ls
+  SHELL
+  config.vm.provision "configure", type: "shell", inline:<<-SHELL
+  set -x
+  cd project
+  cmake -S. -Bbuild -DBUILD_TESTING=ON
+  SHELL
+  config.vm.provision "build", type: "shell", inline:<<-SHELL
+  set -x
+  cd project
+  cmake --build build -v
+  SHELL
+  config.vm.provision "test", type: "shell", inline:<<-SHELL
+  set -x
+  cd project
+  cmake --build build --target test -v
+  SHELL
+end