feat: add vagrantfile support

Vagrantfile

@@ -0,0 +1,17 @@
+$script = <<-SCRIPT
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+echo 'source "$HOME/.cargo/env"' > ~/.bashrc
+SCRIPT
+
+Vagrant.configure("2") do |config|
+  config.vm.box = "generic/freebsd14"
+
+  config.vm.network "private_network", ip: "192.168.56.198"
+
+  config.vm.provision "shell", inline: $script
+
+  config.vm.provider "virtualbox" do |vb|
+      vb.memory = 8192
+      vb.cpus = 8
+  end
+end