diff --git a/go_parse_vagrantfile_ex/main.pb.go b/go_parse_vagrantfile_ex/main.pb.go
deleted file mode 100644
index 38fd96349..000000000
--- a/go_parse_vagrantfile_ex/main.pb.go
+++ /dev/null
@@ -1,162 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.23.0
-// 	protoc        v3.13.0
-// source: vagrant-ruby/go_parse_vagrantfile_ex/main.proto
-
-package go_parse_vagrantfile_ex
-
-import (
-	proto "github.com/golang/protobuf/proto"
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	reflect "reflect"
-	sync "sync"
-)
-
-const (
-	// Verify that this generated code is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-	// Verify that runtime/protoimpl is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
-)
-
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
-type FileProvisioner struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Source      string `protobuf:"bytes,1,opt,name=source,proto3" json:"source,omitempty"`
-	Destination string `protobuf:"bytes,2,opt,name=destination,proto3" json:"destination,omitempty"`
-}
-
-func (x *FileProvisioner) Reset() {
-	*x = FileProvisioner{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *FileProvisioner) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*FileProvisioner) ProtoMessage() {}
-
-func (x *FileProvisioner) ProtoReflect() protoreflect.Message {
-	mi := &file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use FileProvisioner.ProtoReflect.Descriptor instead.
-func (*FileProvisioner) Descriptor() ([]byte, []int) {
-	return file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *FileProvisioner) GetSource() string {
-	if x != nil {
-		return x.Source
-	}
-	return ""
-}
-
-func (x *FileProvisioner) GetDestination() string {
-	if x != nil {
-		return x.Destination
-	}
-	return ""
-}
-
-var File_vagrant_ruby_go_parse_vagrantfile_ex_main_proto protoreflect.FileDescriptor
-
-var file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDesc = []byte{
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-	0x6e, 0x74, 0x2d, 0x72, 0x75, 0x62, 0x79, 0x2f, 0x67, 0x6f, 0x5f, 0x70, 0x61, 0x72, 0x73, 0x65,
-	0x5f, 0x76, 0x61, 0x67, 0x72, 0x61, 0x6e, 0x74, 0x66, 0x69, 0x6c, 0x65, 0x5f, 0x65, 0x78, 0x62,
-	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-}
-
-var (
-	file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDescOnce sync.Once
-	file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDescData = file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDesc
-)
-
-func file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDescGZIP() []byte {
-	file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDescOnce.Do(func() {
-		file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDescData = protoimpl.X.CompressGZIP(file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDescData)
-	})
-	return file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDescData
-}
-
-var file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
-var file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_goTypes = []interface{}{
-	(*FileProvisioner)(nil), // 0: parse_vagrantfile_proto.FileProvisioner
-}
-var file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_depIdxs = []int32{
-	0, // [0:0] is the sub-list for method output_type
-	0, // [0:0] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
-}
-
-func init() { file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_init() }
-func file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_init() {
-	if File_vagrant_ruby_go_parse_vagrantfile_ex_main_proto != nil {
-		return
-	}
-	if !protoimpl.UnsafeEnabled {
-		file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*FileProvisioner); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   1,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_goTypes,
-		DependencyIndexes: file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_depIdxs,
-		MessageInfos:      file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_msgTypes,
-	}.Build()
-	File_vagrant_ruby_go_parse_vagrantfile_ex_main_proto = out.File
-	file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_rawDesc = nil
-	file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_goTypes = nil
-	file_vagrant_ruby_go_parse_vagrantfile_ex_main_proto_depIdxs = nil
-}
diff --git a/go_parse_vagrantfile_ex/main.proto b/go_parse_vagrantfile_ex/main.proto
deleted file mode 100644
index 133e1dccf..000000000
--- a/go_parse_vagrantfile_ex/main.proto
+++ /dev/null
@@ -1,10 +0,0 @@
-syntax = "proto3";
-
-package parse_vagrantfile_proto;
-
-option go_package = "vagrant-ruby/go_parse_vagrantfile_ex";
-
-message FileProvisioner {
-  string source = 1;
-  string destination = 2;
-}
diff --git a/parse_vagrantfile.rb b/parse_vagrantfile.rb
deleted file mode 100644
index f311db4a7..000000000
--- a/parse_vagrantfile.rb
+++ /dev/null
@@ -1,334 +0,0 @@
-require "vagrant"
-require "vagrant/plugin/v2/plugin"
-require "vagrant/vagrantfile"
-require "vagrant/box_collection"
-require "vagrant/config"
-require "pathname"
-require 'google/protobuf/well_known_types'
-
-require_relative "./plugins/commands/serve/command"
-
-vagrantfile_path = "/Users/sophia/project/vagrant-ruby/Vagrantfile"
-
-PROVIDER_PROTO_CLS = Hashicorp::Vagrant::Sdk::Vagrantfile::Provider
-PROVISION_PROTO_CLS = Hashicorp::Vagrant::Sdk::Vagrantfile::Provisioner
-SYNCED_FOLDER_PROTO_CLS = Hashicorp::Vagrant::Sdk::Vagrantfile::SyncedFolder
-NETWORK_PROTO_CLS = Hashicorp::Vagrant::Sdk::Vagrantfile::Network
-
-CONFIG_VM_CLS =  Hashicorp::Vagrant::Sdk::Vagrantfile::ConfigVM
-CONFIG_SSH_CLS = Hashicorp::Vagrant::Sdk::Vagrantfile::ConfigSSH
-CONFIG_WINRM_CLS = Hashicorp::Vagrant::Sdk::Vagrantfile::ConfigWinRM
-CONFIG_WINSSH_CLS = Hashicorp::Vagrant::Sdk::Vagrantfile::ConfigWinssh
-CONFIG_VAGRANT_CLS = Hashicorp::Vagrant::Sdk::Vagrantfile::ConfigVagrant
-
-def stringify_symbols(m)
-  m.each do |k,v|
-    if v.is_a?(Hash)
-      # All keys need to be strings
-      v.transform_keys!{|sk| sk.to_s}
-      stringify_symbols(v)
-      next
-    end
-    if v.is_a?(Array)
-      v.map!{|sk| sk.is_a?(Symbol) ? sk.to_s : sk}
-      stringify_symbols(v)
-      next
-    end
-    k = k.to_s if k.is_a?(Symbol)
-    m[k] = v.to_s if v.is_a?(Symbol)
-  end
-end
-
-def clean_up_config_object(config)
-  protoize = config
-  stringify_symbols(protoize)
-  # Remote variables that are internal
-  protoize.delete_if{|k,v| k.start_with?("_") }
-  protoize
-end
-
-def extract_provisioners(target, provisioners)
-  provisioners.each do |c|
-    proto = PROVISION_PROTO_CLS.new()
-    c.instance_variables_hash.each do |k, v|
-      begin
-        if k == "config"
-          protoize = clean_up_config_object(c.config.instance_variables_hash)
-          config_struct = Google::Protobuf::Struct.from_hash(protoize)
-          config_any = Google::Protobuf::Any.pack(config_struct)
-          proto.config = config_any
-          next
-        end
-        if !v.nil?
-          v = v.to_s if v.is_a?(Symbol)
-          proto.send("#{k}=", v)
-        end
-      rescue NoMethodError
-        # this is ok
-      end
-    end
-    target << proto
-  end
-end
-
-# Network configs take the form
-# [
-#   [:type, {:id=>"tcp8080", ...}], ...
-# ]
-def extract_network(target, networks)
-  networks.each do |n|
-    type = n[0]
-    opts = n[1]
-    network_proto = NETWORK_PROTO_CLS.new(type: type, id: opts.fetch(:id, ""))
-    opts.delete(:id)
-    opts.transform_keys!(&:to_s)
-    config_struct = Google::Protobuf::Struct.from_hash(opts)
-    config_any = Google::Protobuf::Any.pack(config_struct)
-    network_proto.config = config_any
-    target << network_proto
-  end
-end
-
-# Providers take the form
-# {
-#   :type=> #<VagrantPlugins::PluginClass::Config:Object>, ...
-# }
-def extract_provider(target, vm_config)
-  #WARNING: hacks ahead
-  vm_config.define_singleton_method(:compiled_provider_configs) do
-    return @__compiled_provider_configs
-  end
-
-  vm_config.compiled_provider_configs.each do |type, config|
-    c = clean_up_config_object(config.instance_variables_hash)
-
-    provider_proto = PROVIDER_PROTO_CLS.new(type: type)
-    config_struct = Google::Protobuf::Struct.from_hash(c)
-    config_any = Google::Protobuf::Any.pack(config_struct)
-    provider_proto.config = config_any
-    target << provider_proto
-  end
-end 
-
-# Synced folders take the form of a hash map
-# {
-#   "name"=>{:type=>:rsync, ...},  ...
-# },
-def extract_synced_folders(target, synced_folders)
-  synced_folders.each do |k,v|
-    sf_proto = SYNCED_FOLDER_PROTO_CLS.new()
-
-    # Need to set source and destination since they don't exactly map
-    sf_proto.source = v[:hostpath]
-    sf_proto.destination = v[:guestpath]
-
-    # config_opts keep track of the config options specific to the synced
-    # folder type. They are in the form `type`__`option`
-    config_opts = {}
-
-    v.each do |opt, val|
-      # already accounted for above
-      next if ["guestpath", "hostpath"].include?(opt.to_s)
-
-      # match the synced folder specific options and store them in the
-      # config_opts
-      if opt.to_s.match(/#{v[:type]}__/)
-        config_opts[opt.to_s.split("__")[1]] = val
-        next
-      end
-
-      sf_proto.send("#{opt.to_s}=", val)
-    end
-    config_struct = Google::Protobuf::Struct.from_hash(config_opts)
-    config_any = Google::Protobuf::Any.pack(config_struct)
-    sf_proto.config = config_any
-    target << sf_proto
-  end
-end
-
-def extract_config_component(config_cls, config)
-  config_proto = config_cls.new()
-  config.instance_variables_hash.each do |k, v|
-    # Skip config that has not be set
-    next if v.class == Object 
-
-    # Going to deal with these seperately because they are more involved
-    next if ["provisioners", "networks", "synced_folders", "disks", "cloud_init_configs"].include?(k)
-
-    # Skip all variables that are internal
-    next if k.start_with?("_")
-
-    if v.nil? 
-      # If v is nil, set it to the default value defined by the proto
-      v = config_proto.send(k)
-    end
-
-    if v.is_a?(Range)
-      v = v.to_a
-    end
-
-    if v.is_a?(Hash)
-      m = config_proto.send(k)
-      v.each do |k2,v2|
-        m[k2] = v2
-      end 
-      v = m
-    end
-
-    if v.is_a?(Array)
-      m = config_proto.send(k)
-      v.each do |v2|
-        m << v2
-      end 
-      v = m
-    end
-
-    begin
-      config_proto.send("#{k}=", v)
-    rescue NoMethodError
-      # Reach here when Hashicorp::Vagrant::VagrantfileComponents::ConfigVM does not
-      # have a config variable for one of the instance methods. This is ok.
-    end
-  end
-  config_proto
-end
-
-def extract_communicator(config_cls, config)
-  protoize = config.instance_variables_hash
-  protoize.map do |k,v|
-    # Get embedded default struct
-    if v.is_a?(Vagrant.plugin("2", :config))
-      hashed_config = v.instance_variables_hash
-      hashed_config.delete_if{|k,v| k.start_with?("_") }
-      protoize[k] = hashed_config
-    end
-  end
-  protoize = clean_up_config_object(protoize)
-  config_struct = Google::Protobuf::Struct.from_hash(protoize)
-  config_any = Google::Protobuf::Any.pack(config_struct)
-  config_cls.new(config: config_any)
-end
-
-
-def parse_vagrantfile(path)
-  # Load up/parse the vagrantfile
-  config_loader = Vagrant::Config::Loader.new(
-    Vagrant::Config::VERSIONS, Vagrant::Config::VERSIONS_ORDER)
-  config_loader.set(:root, path)
-  v = Vagrant::Vagrantfile.new(config_loader, [:root])
-
-  machine_configs = []
-  # Get the config for each machine
-  v.machine_names.each do |mach|
-    machine_info = v.machine_config(mach, nil, nil, false)
-    root_config = machine_info[:config]
-    vm_config = root_config.vm
-
-    # Get config.ssh.*
-    config_ssh_proto = extract_communicator(CONFIG_SSH_CLS, root_config.ssh)
-
-    # Get config.winrm.*
-    config_winrm_proto = extract_communicator(CONFIG_WINRM_CLS, root_config.winrm)
-
-    #Get config.winssh.*
-    config_winssh_proto = extract_communicator(CONFIG_WINSSH_CLS, root_config.winssh)
-
-    # Get config.vagrant.*
-    config_vagrant_proto = extract_config_component(CONFIG_VAGRANT_CLS, root_config.vagrant)
-
-    # Get's config.vm.*
-    config_vm_proto = extract_config_component(CONFIG_VM_CLS, vm_config)
-    extract_provisioners(config_vm_proto.provisioners, vm_config.provisioners)
-    extract_network(config_vm_proto.networks, vm_config.networks)
-    extract_synced_folders(config_vm_proto.synced_folders, vm_config.synced_folders)
-    extract_provider(config_vm_proto.providers, vm_config)
-
-    machine_configs << Hashicorp::Vagrant::Sdk::Vagrantfile::MachineConfig.new(
-      name: mach.to_s,
-      config_vm: config_vm_proto,
-      config_vagrant: config_vagrant_proto,
-      config_ssh: config_ssh_proto,
-      config_winrm: config_winrm_proto,
-      config_winssh: config_winssh_proto,
-
-    )
-  end
-
-  vagrantfile = Hashicorp::Vagrant::Sdk::Vagrantfile::Vagrantfile.new(
-    path: path,
-    # raw: raw,
-    current_version: Vagrant::Config::CURRENT_VERSION,
-    machine_configs: machine_configs,
-  )
-  Hashicorp::Vagrant::ParseVagrantfileResponse.new(
-    vagrantfile: vagrantfile
-  )
-end
-
-def proto_to_provisioner(vagrantfile_proto, validate=false)
-  # Just grab the first provisioner
-  vagrantfile_proto.machine_configs.each do |m|
-    puts "MACHINE: #{m.name}"
-    m.config_vm.provisioners.each do |p| 
-      plugin = Vagrant.plugin("2").manager.provisioners[p.type.to_sym]
-      if plugin.nil?
-        puts "No plugin available for #{p.type}\n"
-        next
-      end
-      raw_config = p.config.unpack(Google::Protobuf::Struct).to_h
-      puts p.type
-      puts raw_config
-      puts "\n"
-      # TODO: fetch this config
-      #       if it doesn't exist, then pass in generic config
-      plugin_config = Vagrant.plugin("2").manager.provisioner_configs[p.type.to_sym]
-      # Create a new config
-      config = plugin_config.new
-      # Unpack the config from the proto
-      raw_config = p.config.unpack(Google::Protobuf::Struct).to_h
-      # Set config
-      config.set_options(raw_config)
-      if validate
-        # Ensure config is valid
-        config.validate("machine")
-      end
-      # Create new provisioner
-      provisioner = plugin.new("machine", config)
-    end
-  end
-end
-
-def proto_to_provider(vagrantfile_proto, validate=false)
-  # Just grab the first provisioner
-  vagrantfile_proto.machine_configs.each do |m|
-    puts "MACHINE: #{m.name}"
-    m.config_vm.providers.each do |p| 
-      plugin = Vagrant.plugin("2").manager.providers[p.type.to_sym]
-      if plugin.nil?
-        puts "No plugin available for #{p.type}\n"
-        next
-      end
-      raw_config = p.config.unpack(Google::Protobuf::Struct).to_h
-      puts p.type
-      puts raw_config
-      puts "\n"
-      # TODO: fetch this config
-      #       if it doesn't exist, then pass in generic config
-      plugin_config = Vagrant.plugin("2").manager.provider_configs[p.type.to_sym]
-      # Create a new config
-      config = plugin_config.new
-      # Unpack the config from the proto
-      raw_config = p.config.unpack(Google::Protobuf::Struct).to_h
-      # Set config
-      config.set_options(raw_config)
-      if validate
-        # Ensure config is valid
-        config.validate("machine")
-      end
-    end
-  end
-end
-
-parse_vagrantifle_response = parse_vagrantfile(vagrantfile_path)
-# proto_to_provisioner(parse_vagrantifle_response.vagrantfile)
-proto_to_provider(parse_vagrantifle_response.vagrantfile)
diff --git a/parse_vagrantfile_proto.go b/parse_vagrantfile_proto.go
deleted file mode 100644
index 2425a0df5..000000000
--- a/parse_vagrantfile_proto.go
+++ /dev/null
@@ -1,61 +0,0 @@
-package main
-
-import (
-	"fmt"
-
-	"github.com/hashicorp/vagrant/internal/server/proto/ruby_vagrant"
-
-	"github.com/hashicorp/vagrant/go_parse_vagrantfile_ex"
-	"github.com/mitchellh/mapstructure"
-	"google.golang.org/protobuf/types/known/anypb"
-	"google.golang.org/protobuf/types/known/structpb"
-)
-
-//go:generate protoc -I .. --go_opt=plugins=grpc --go_out=.. vagrant-ruby/go_parse_vagrantfile_ex/main.proto
-
-func main() {
-	// Setup an example proto
-	m, _ := structpb.NewValue(map[string]interface{}{
-		"source":      ".gitignore",
-		"destination": "/.gitignore",
-	})
-	any, _ := anypb.New(m)
-
-	testProto := &ruby_vagrant.VagrantfileComponents_Vagrantfile{
-		Path:           "",
-		Raw:            "",
-		CurrentVersion: "2",
-		MachineConfigs: []*ruby_vagrant.VagrantfileComponents_MachineConfig{
-			&ruby_vagrant.VagrantfileComponents_MachineConfig{
-				Name: "a",
-				ConfigVm: &ruby_vagrant.VagrantfileComponents_ConfigVM{
-					Box: "hashicorp/bionic64",
-					Provisioners: []*ruby_vagrant.VagrantfileComponents_Provisioner{
-						&ruby_vagrant.VagrantfileComponents_Provisioner{
-							Name:                 "",
-							Type:                 "file",
-							Before:               "",
-							After:                "",
-							CommunicatorRequired: true,
-							Config:               any,
-						},
-					},
-				},
-			},
-		},
-	}
-	for _, m := range testProto.MachineConfigs {
-		fmt.Println("got machine \"" + m.Name + "\"")
-		fmt.Println("got box " + m.ConfigVm.Box)
-		for _, p := range m.ConfigVm.Provisioners {
-			fmt.Println("got provisioner " + p.Type)
-			s2, _ := p.Config.UnmarshalNew()
-			s2structpb := s2.(*structpb.Value)
-			var result go_parse_vagrantfile_ex.FileProvisioner
-			s2struct := s2structpb.GetStructValue()
-			mapstructure.Decode(s2struct.AsMap(), &result)
-			fmt.Println("source: " + result.Source)
-			fmt.Println("destination: " + result.Destination)
-		}
-	}
-}
diff --git a/plugins/kernel_v2/config/vm_provisioner.rb b/plugins/kernel_v2/config/vm_provisioner.rb
index 94c511302..906a37efd 100644
--- a/plugins/kernel_v2/config/vm_provisioner.rb
+++ b/plugins/kernel_v2/config/vm_provisioner.rb
@@ -100,19 +100,7 @@ module VagrantPlugins
       end
 
       def add_config(**options, &block)
-        if invalid?
-          add_invalid_config(**options, &block)
-          return
-        end
-
-        current = @config_class.new
-        current.set_options(options) if options
-        block.call(current) if block
-        current = @config.merge(current) if @config
-        @config = current
-      end
-
-      def add_invalid_config(**options, &block)
+        # Don't skip if config is invalid. It might be a valid non-Ruby plugin
         current = @config_class.new
         current.set_options(options) if options
         block.call(current) if block