diff --git a/Gemfile b/Gemfile
index 548b363..844a1ab 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,5 @@
 source "https://rubygems.org"
+ruby '>=2.7'
 
 # Specify your gem's dependencies in knot.gemspec
 gemspec
diff --git a/knot-ruby.gemspec b/knot-ruby.gemspec
index 5a51a4b..d8dded8 100644
--- a/knot-ruby.gemspec
+++ b/knot-ruby.gemspec
@@ -10,7 +10,7 @@ Gem::Specification.new do |spec|
 	spec.summary       = %q{Provides interface to knot-server.}
   spec.description   = %q{Implements knot-protocol to provide an interface to knot-DNS-server}
 	spec.homepage      = 'https://git.denkn.at/deac/knot'
-  spec.required_ruby_version = Gem::Requirement.new(">= 2.3.0")
+  spec.required_ruby_version = Gem::Requirement.new(">= 2.7.0")
 
   #spec.metadata["allowed_push_host"] = "TODO: Set to 'http://mygemserver.com'"
 
diff --git a/lib/knot.rb b/lib/knot.rb
index 4231108..32f0701 100644
--- a/lib/knot.rb
+++ b/lib/knot.rb
@@ -2,3 +2,13 @@ require 'knot/version'
 require 'knot/errors'
 require 'knot/protocol'
 require 'knot/interface'
+
+module Knot
+	class <<self
+		def new *as, **os
+			Protocol.new *as, **os
+		end
+		alias connect new
+		alias open new
+	end
+end
diff --git a/lib/knot/interface.rb b/lib/knot/interface.rb
index 62b1ff5..221af51 100644
--- a/lib/knot/interface.rb
+++ b/lib/knot/interface.rb
@@ -69,7 +69,7 @@ class Knot::Zone
 
 	def read() @protocol.call command: 'zone-read', zone: @zone end
 	def diff() @protocol.call command: 'zone-diff', zone: @zone end
-	
+
 	# setting record
 	# if data is nil, it will be unset.
 	def set owner, ttl = nil, type, data
@@ -153,33 +153,36 @@ class Knot::Conf
 
 			$~.named_captures.delete_if {|_,v| v.nil? }
 
+		when nil
+			{}
+
 		else
 			raise ArgumentError, "Invalid Item-format"
 		end
 	end
 
 	def get item = nil
-		@protocol.call (item ? parse_item( item) : {}).update( command: 'conf-get')
+		@protocol.call **parse_item( item).update( command: 'conf-get')
 	end
 
 	# Sets or adds a new value to item.
 	# knot knows single-value items like `server.rundir` and multi-value items like `server.listen`.
 	# If you set a single-value, it will replace the old value.  On a multi-value, it will add it.
 	def set item, value
-		@protocol.call parse_item( item).update( command: 'conf-set', data: value)
+		@protocol.call **parse_item( item).update( command: 'conf-set', data: value)
 	end
 
 	# Removes value from item.  If you provide a value, this value will be removed.
 	def unset item, value = nil
-		@protocol.call parse_item( item).update( command: 'conf-unset', data: value)
+		@protocol.call **parse_item( item).update( command: 'conf-unset', data: value)
 	end
 	alias delete unset
 
 	def list item = nil
-		@protocol.call (item ? parse_item( item) : {}).update( command: 'conf-list')
+		@protocol.call **parse_item( item).update( command: 'conf-list')
 	end
 
 	def read item = nil
-		@protocol.call (item ? parse_item( item) : {}).update( command: 'conf-read')
+		@protocol.call **parse_item( item).update( command: 'conf-read')
 	end
 end
diff --git a/lib/knot/protocol.rb b/lib/knot/protocol.rb
index bdb7c02..247e7d8 100644
--- a/lib/knot/protocol.rb
+++ b/lib/knot/protocol.rb
@@ -1,4 +1,5 @@
 require 'iounpack'
+require 'stringio'
 require_relative 'errors'
 
 module Knot
@@ -51,6 +52,26 @@ module Knot::Protocol::Type
 	end
 end
 
+#class Knot::KnotC
+#	attr_accessor :debug, :binary
+#
+#	def initialize path = nil, binary: nil
+#   @path = path
+#		@binary = binary || 'knotc'
+#		@conf = Knot::Conf.new self
+#		@zones = Hash.new {|h, zone| h[zone] = Knot::Zone.new zone, self }
+#	end
+#
+#	def call command:, flags: nil, section: nil, item: nil, id: nil, zone: nil, owner: nil, ttl: nil, type: nil, data: nil, filter: nil
+#		cs =
+#			case command.to_s
+#			when 'conf-begin', 'conf-commit', 'conf-abort', 'status', 'stop', 'reload'
+#				[@binary, command,  ]
+#			else raise ArgumentError, "Unknown Command: #{command}"
+#			end
+#	end
+#end
+
 module Knot::Protocol::Idx
 	Idx = [
 		:command, # 10, :CMD,     # Control command name.
@@ -117,7 +138,7 @@ class Knot::Protocol
 		STDERR.puts( {data: data, _: s}.inspect)  if @debug
 		rsock.write s
 		rsock.flush
-	end 
+	end
 
 	class RecordIO
 		attr_reader :str
@@ -153,7 +174,7 @@ class Knot::Protocol
 			when 1, 2
 				type = t
 				ret.push( r = {})
-			else 
+			else
 				raise Knot::Errors::EINVAL, "Missing Type before: #{t}"  if ret.empty?
 				i = Idx::Idx[t - 0x10] or raise Knot::Errors::EINVAL, "Unknown index: #{t-0x10}"
 				l = sock.unpack1 'n'
@@ -167,7 +188,7 @@ class Knot::Protocol
 
 	def call sock: nil, **data
 		snd sock: sock, **data
-		rcv( sock: sock).each do |r| 
+		rcv( sock: sock).each do |r|
 			if r[:error]
 				if e = Knot::Errors.err2exc[r[:error]]
 					raise e, r[:error]
@@ -179,10 +200,10 @@ class Knot::Protocol
 
 	def zone( zone) @zones[zone.to_s.to_sym] end
 
-	def conf_set( **opts)   call **opts.update( command: 'conf-set') end
-	def conf_unset( **opts) call **opts.update( command: 'conf-set') end
+	def conf_set( **opts)   call **opts.update( command: 'conf-set')   end
+	def conf_unset( **opts) call **opts.update( command: 'conf-unset') end
 
-	def zone_set( **opts)   call **opts.update( command: 'zone-set') end
+	def zone_set( **opts)   call **opts.update( command: 'zone-set')   end
 	def zone_unset( **opts) call **opts.update( command: 'zone-unset') end
-	def zone_get( **opts)   call **opts.update( command: 'zone-get') end
+	def zone_get( **opts)   call **opts.update( command: 'zone-get')   end
 end
diff --git a/lib/knot/version.rb b/lib/knot/version.rb
index 26b7ac8..74f9cdb 100644
--- a/lib/knot/version.rb
+++ b/lib/knot/version.rb
@@ -1,3 +1,3 @@
 module Knot
-  VERSION = "0.1.2"
+	VERSION = "0.2.0"
 end