diff --git a/classes/deck/deck.gd b/classes/deck/deck.gd
index 4528d38..2ca6ddc 100644
--- a/classes/deck/deck.gd
+++ b/classes/deck/deck.gd
@@ -7,25 +7,6 @@ class_name Deck
 ## is the [DeckNode] instance.
 var nodes: Dictionary
 
-## The list of [DeckType] for easy port creation.
-enum Types{
-	ERROR = -1,
-	BOOL,
-	NUMERIC,
-	STRING,
-	ARRAY,
-	DICTIONARY,
-}
-
-## A dictionary mapping [enum Types] to [DeckType] subclasses.
-static var type_assoc: Dictionary = {
-	Types.ERROR: DeckType.DeckTypeError,
-	Types.BOOL: DeckType.DeckTypeBool,
-	Types.NUMERIC: DeckType.DeckTypeNumeric,
-	Types.STRING: DeckType.DeckTypeString,
-	Types.ARRAY: DeckType.DeckTypeArray,
-	Types.DICTIONARY: DeckType.DeckTypeDictionary,
-}
 
 ## A map of variables set on this deck.
 var variable_stack: Dictionary = {}
@@ -91,12 +72,11 @@ func get_node(uuid: String) -> DeckNode:
 
 ## Attempt to connect two nodes. Returns [code]true[/code] if the connection succeeded.
 func connect_nodes(from_node: DeckNode, to_node: DeckNode, from_output_port: int, to_input_port: int) -> bool:
-	# first, check that we can do the type conversion.
-	var type_a: Types = from_node.get_output_ports()[from_output_port].type
-	var type_b: Types = to_node.get_input_ports()[to_input_port].type
-	var err: DeckType = (type_assoc[type_b]).from(type_assoc[type_a].new())
-	if err is DeckType.DeckTypeError:
-		print(err.error_message)
+	# check that we can do the type conversion
+	var type_a: DeckType.Types = from_node.get_output_ports()[from_output_port].type
+	var type_b: DeckType.Types = to_node.get_input_ports()[to_input_port].type
+	if !DeckType.can_convert(type_a, type_b):
+		print("Can not convert from %s to %s." % [DeckType.type_str(type_a), DeckType.type_str(type_b)])
 		return false
 
 	# TODO: prevent duplicate connections
diff --git a/classes/deck/deck_node.gd b/classes/deck/deck_node.gd
index a9c4778..6c01732 100644
--- a/classes/deck/deck_node.gd
+++ b/classes/deck/deck_node.gd
@@ -66,22 +66,22 @@ signal incoming_connection_removed(from_port: int)
 
 
 ## Add an input port to this node. Usually only used at initialization.
-func add_input_port(type: Deck.Types, label: String, descriptor: String = "") -> void:
+func add_input_port(type: DeckType.Types, label: String, descriptor: String = "") -> void:
 	add_port(type, label, PortType.INPUT, get_input_ports().size(), descriptor)
 
 
 ## Add an output port to this node. Usually only used at initialization.
-func add_output_port(type: Deck.Types, label: String, descriptor: String = "") -> void:
+func add_output_port(type: DeckType.Types, label: String, descriptor: String = "") -> void:
 	add_port(type, label, PortType.OUTPUT, get_output_ports().size(), descriptor)
 
 
 ## Add a virtual port to this node. Usually only used at initialization.
-func add_virtual_port(type: Deck.Types, label: String, descriptor: String = "") -> void:
+func add_virtual_port(type: DeckType.Types, label: String, descriptor: String = "") -> void:
 	add_port(type, label, PortType.VIRTUAL, get_virtual_ports().size(), descriptor)
 
 
 ## Add a port to this node. Usually only used at initialization.
-func add_port(type: Deck.Types, label: String, port_type: PortType, index_of_type: int, descriptor: String = "") -> void:
+func add_port(type: DeckType.Types, label: String, port_type: PortType, index_of_type: int, descriptor: String = "") -> void:
 	var port := Port.new(type, label, ports.size(), port_type, index_of_type, descriptor)
 	ports.append(port)
 	port_added.emit(ports.size() - 1)
@@ -97,7 +97,7 @@ func remove_port(port_idx: int) -> void:
 
 
 ## Send data to all outgoing connections on port [param from_output_port].
-func send(from_output_port: int, data: DeckType, extra_data: Array = []) -> void:
+func send(from_output_port: int, data: Variant, extra_data: Array = []) -> void:
 	if outgoing_connections.get(from_output_port) == null:
 		return
 
@@ -110,7 +110,7 @@ func send(from_output_port: int, data: DeckType, extra_data: Array = []) -> void
 
 
 ## Virtual function that's called when this node receives data from another node's [method send] call.
-func _receive(to_input_port: int, data: DeckType, extra_data: Array = []) -> void:
+func _receive(to_input_port: int, data: Variant, extra_data: Array = []) -> void:
 	pass
 
 
diff --git a/classes/deck/nodes/button.gd b/classes/deck/nodes/button.gd
index ef3c9b5..e87fa0d 100644
--- a/classes/deck/nodes/button.gd
+++ b/classes/deck/nodes/button.gd
@@ -8,7 +8,7 @@ func _init() -> void:
 	category = "general"
 
 	add_output_port(
-		Deck.Types.BOOL,
+		DeckType.Types.BOOL,
 		"Press me",
 		"button"
 	)
diff --git a/classes/deck/nodes/get_deck_var.gd b/classes/deck/nodes/get_deck_var.gd
index 63301d9..44686f9 100644
--- a/classes/deck/nodes/get_deck_var.gd
+++ b/classes/deck/nodes/get_deck_var.gd
@@ -8,7 +8,7 @@ func _init() -> void:
 	category = "general"
 
 	add_output_port(
-		Deck.Types.STRING,
+		DeckType.Types.STRING,
 		"Variable",
 		"field"
 	)
diff --git a/classes/deck/nodes/group_input_node.gd b/classes/deck/nodes/group_input_node.gd
index 249e668..e2f4dad 100644
--- a/classes/deck/nodes/group_input_node.gd
+++ b/classes/deck/nodes/group_input_node.gd
@@ -12,7 +12,7 @@ func _init() -> void:
 	appears_in_search = false
 
 	add_output_port(
-		Deck.Types.STRING,
+		DeckType.Types.ANY,
 		"Input 0"
 	)
 	outgoing_connection_added.connect(_on_outgoing_connection_added)
@@ -24,7 +24,7 @@ func _on_outgoing_connection_added(port_idx: int) -> void:
 		return
 
 	add_output_port(
-		Deck.Types.STRING,
+		DeckType.Types.ANY,
 		"Input %s" % (get_all_ports().size())
 	)
 
@@ -48,7 +48,7 @@ func _on_outgoing_connection_removed(port_idx: int) -> void:
 func _pre_connection() -> void:
 	for i in output_count + 1:
 		add_output_port(
-			Deck.Types.STRING,
+			DeckType.Types.ANY,
 			"Input %s" % (i + 1)
 		)
 
@@ -62,7 +62,7 @@ func _post_load() -> void:
 	if ports.size() <= last_connected_port:
 		for i in last_connected_port:
 			add_output_port(
-				Deck.Types.STRING,
+				DeckType.Types.ANY,
 				"Input %s" % get_output_ports().size()
 			)
 
diff --git a/classes/deck/nodes/group_node.gd b/classes/deck/nodes/group_node.gd
index eb1c7f9..d2ba8e8 100644
--- a/classes/deck/nodes/group_node.gd
+++ b/classes/deck/nodes/group_node.gd
@@ -19,9 +19,9 @@ func _pre_connection() -> void:
 		var index_of_type: int
 		match port_type:
 			PortType.OUTPUT:
-				add_output_port(Deck.Types.STRING, "Output %s" % get_output_ports().size())
+				add_output_port(DeckType.Types.ANY, "Output %s" % get_output_ports().size())
 			PortType.INPUT:
-				add_input_port(Deck.Types.STRING, "Input %s" % get_input_ports().size())
+				add_input_port(DeckType.Types.ANY, "Input %s" % get_input_ports().size())
 
 
 func init_io() -> void:
@@ -46,13 +46,13 @@ func recalculate_ports() -> void:
 
 	for output_port: Port in output_node.get_input_ports():
 		add_output_port(
-			Deck.Types.STRING,
+			DeckType.Types.ANY,
 			"Output %s" % output_port.index
 		)
 
 	for input_port: Port in input_node.get_output_ports():
 		add_input_port(
-			Deck.Types.STRING,
+			DeckType.Types.ANY,
 			"Input %s" % input_port.index
 		)
 
@@ -61,7 +61,7 @@ func recalculate_ports() -> void:
 		extra_ports.append(port.port_type)
 
 
-func _receive(to_input_port: int, data: DeckType, extra_data: Array = []):
+func _receive(to_input_port: int, data: Variant, extra_data: Array = []):
 	input_node.send(get_input_ports()[to_input_port].index_of_type, data, extra_data)
 
 
diff --git a/classes/deck/nodes/group_output_node.gd b/classes/deck/nodes/group_output_node.gd
index 5eee3d9..477d90b 100644
--- a/classes/deck/nodes/group_output_node.gd
+++ b/classes/deck/nodes/group_output_node.gd
@@ -12,7 +12,7 @@ func _init() -> void:
 	appears_in_search = false
 
 	add_input_port(
-		Deck.Types.STRING,
+		DeckType.Types.ANY,
 		"Output 0"
 	)
 
@@ -25,7 +25,7 @@ func _on_incoming_connection_added(port_idx: int) -> void:
 		return
 
 	add_input_port(
-		Deck.Types.STRING,
+		DeckType.Types.ANY,
 		"Output %s" % (get_all_ports().size())
 	)
 
@@ -49,7 +49,7 @@ func _on_incoming_connection_removed(port_idx: int) -> void:
 func _pre_connection() -> void:
 	for i in input_count + 1:
 		add_input_port(
-			Deck.Types.STRING,
+			DeckType.Types.ANY,
 			"Output %s" % (i + 1)
 		)
 
@@ -63,11 +63,11 @@ func _post_load() -> void:
 	if ports.size() <= last_connected_port:
 		for i in last_connected_port:
 			add_input_port(
-				Deck.Types.STRING,
+				DeckType.Types.ANY,
 				"Output %s" % get_input_ports().size()
 			)
 
 
-func _receive(to_input_port: int, data: DeckType, extra_data: Array = []) -> void:
+func _receive(to_input_port: int, data: Variant, extra_data: Array = []) -> void:
 	var group_node := _belonging_to._belonging_to.get_node(_belonging_to.group_node)
 	group_node.send(group_node.get_output_ports()[to_input_port].index_of_type, data, extra_data)
diff --git a/classes/deck/nodes/print.gd b/classes/deck/nodes/print.gd
index d70a660..7088714 100644
--- a/classes/deck/nodes/print.gd
+++ b/classes/deck/nodes/print.gd
@@ -12,25 +12,25 @@ func _init() -> void:
 	category = "general"
 
 	add_input_port(
-		Deck.Types.STRING,
+		DeckType.Types.STRING,
 		"Text to print",
 		"field"
 	)
 
 	add_input_port(
-		Deck.Types.BOOL,
+		DeckType.Types.BOOL,
 		"Trigger",
 		"button"
 	)
 
 	add_output_port(
-		Deck.Types.BOOL,
+		DeckType.Types.BOOL,
 		"On Trigger",
 		"label"
 	)
 
 
-func _receive(to_input_port: int, data: DeckType, extra_data: Array = []) -> void:
+func _receive(to_input_port: int, data: Variant, extra_data: Array = []) -> void:
 	if to_input_port != 1:
 		return
 
@@ -40,11 +40,11 @@ func _receive(to_input_port: int, data: DeckType, extra_data: Array = []) -> voi
 	elif get_input_ports()[0].value_callback.get_object() && get_input_ports()[0].value_callback.call() != "":
 		data_to_print = get_input_ports()[0].value_callback.call()
 	else:
-		data_to_print = data.get_value()
+		data_to_print = data
 
 	times_activated += 1
 
 #	var data_to_print = input_ports[0].value_callback.call()
 	print(data_to_print)
 	print("extra data: ", extra_data)
-	send(0, DeckType.DeckTypeBool.new(true))
+	send(0, true)
diff --git a/classes/deck/nodes/set_deck_var.gd b/classes/deck/nodes/set_deck_var.gd
index 6d5b1cb..66ae632 100644
--- a/classes/deck/nodes/set_deck_var.gd
+++ b/classes/deck/nodes/set_deck_var.gd
@@ -8,48 +8,47 @@ func _init() -> void:
 	category = "general"
 
 	add_input_port(
-		Deck.Types.STRING,
+		DeckType.Types.STRING,
 		"Variable Name",
 		"field"
 	)
 
 	add_input_port(
-		Deck.Types.STRING,
+		DeckType.Types.ANY,
 		"Value",
 		"field"
 	)
 
 	add_input_port(
-		Deck.Types.BOOL,
+		DeckType.Types.BOOL,
 		"Set",
 		"button"
 	)
 
 	add_output_port(
-		Deck.Types.STRING,
+		DeckType.Types.ANY,
 		"Value",
 		"label"
 	)
 
 
-func _receive(to_input_port: int, data: DeckType, extra_data: Array = []) -> void:
+func _receive(to_input_port: int, data: Variant, extra_data: Array = []) -> void:
 	if to_input_port != 2:
 		return
 
 	var var_name: String = get_value_for_port(0, data)
-	# String for now, until i figure out an Any type
-	var var_value: String = get_value_for_port(1, data)
+	var var_value: Variant = get_value_for_port(1, data)
 
 	_belonging_to.variable_stack[var_name] = var_value
 
-	send(0, DeckType.DeckTypeString.new(var_value))
+	send(0, var_value)
 
 # this can probably go into DeckNode with a different name that makes it clear
 # that it prioritizes call-time resolution
-func get_value_for_port(port: int, data: DeckType) -> Variant:
+func get_value_for_port(port: int, data: Variant) -> Variant:
 	if request_value(port) != null:
 		return request_value(port)
 	elif ports[port].value_callback.call() != "":
 		return ports[port].value_callback.call()
 	else:
-		return data.get_value()
+		return data
diff --git a/classes/deck/nodes/string_constant.gd b/classes/deck/nodes/string_constant.gd
index 530de33..9fab8bc 100644
--- a/classes/deck/nodes/string_constant.gd
+++ b/classes/deck/nodes/string_constant.gd
@@ -7,7 +7,7 @@ func _init() -> void:
 	category = "general"
 
 	add_output_port(
-		Deck.Types.STRING,
+		DeckType.Types.STRING,
 		"Text",
 		"field"
 	)
diff --git a/classes/deck/nodes/test_interleaved_node.gd b/classes/deck/nodes/test_interleaved_node.gd
index f2cfc8d..5ecbedf 100644
--- a/classes/deck/nodes/test_interleaved_node.gd
+++ b/classes/deck/nodes/test_interleaved_node.gd
@@ -8,10 +8,10 @@ func _init() -> void:
 
 	for i in 4:
 		add_output_port(
-			Deck.Types.STRING,
+			DeckType.Types.STRING,
 			"Test"
 		)
 		add_input_port(
-			Deck.Types.STRING,
+			DeckType.Types.STRING,
 			"Test"
 		)
diff --git a/classes/deck/nodes/test_types.gd b/classes/deck/nodes/test_types.gd
new file mode 100644
index 0000000..d24a5d6
--- /dev/null
+++ b/classes/deck/nodes/test_types.gd
@@ -0,0 +1,43 @@
+extends DeckNode
+
+
+func _init() -> void:
+	name = "Types Test"
+	node_type = name.to_snake_case()
+	description = ""
+	category = "test"
+
+	props_to_serialize = []
+
+	add_input_port(DeckType.Types.BOOL, "BOOL")
+	add_input_port(DeckType.Types.NUMERIC, "NUMERIC")
+	add_input_port(DeckType.Types.STRING, "STRING")
+	add_input_port(DeckType.Types.ARRAY, "ARRAY")
+	add_input_port(DeckType.Types.DICTIONARY, "DICTIONARY")
+	add_input_port(DeckType.Types.ANY, "ANY")
+
+	add_output_port(DeckType.Types.BOOL, "BOOL")
+	add_output_port(DeckType.Types.NUMERIC, "NUMERIC")
+	add_output_port(DeckType.Types.STRING, "STRING")
+	add_output_port(DeckType.Types.ARRAY, "ARRAY")
+	add_output_port(DeckType.Types.DICTIONARY, "DICTIONARY")
+	add_output_port(DeckType.Types.ANY, "ANY")
+
+	add_input_port(DeckType.Types.BOOL, "Send", "button")
+
+
+func _receive(to_input_port: int, data: Variant, extra_data: Array = []) -> void:
+	if to_input_port == 6:
+		send(0, false)
+		send(1, 1.0)
+		send(2, "string")
+		send(3, ["foo", "bar", 5.3])
+		send(4, {"foo": "bar", 1: 2})
+		send(5, null)
+		return
+
+	print("received data %s of type %s on port %s, expected type %s, converted v %s, converted type %s" % [
+		data, typeof(data), to_input_port, DeckType.GODOT_TYPES_MAP[get_input_ports()[to_input_port].type],
+		DeckType.convert_value(data, get_input_ports()[to_input_port].type),
+		typeof(DeckType.convert_value(data, get_input_ports()[to_input_port].type))
+	])
diff --git a/classes/deck/port.gd b/classes/deck/port.gd
index 3f41cbf..9cea9de 100644
--- a/classes/deck/port.gd
+++ b/classes/deck/port.gd
@@ -5,7 +5,7 @@ class_name Port
 ## them on a node.
 
 ## The type index of this port.
-var type: Deck.Types
+var type: DeckType.Types
 ## The label of this port. Used by the renderer to display. How it's displayed depends on the renderer
 ## and the [member descriptor].
 var label: String
@@ -29,7 +29,7 @@ var value: Variant: set = set_value
 
 
 func _init(
-		p_type: Deck.Types,
+		p_type: DeckType.Types,
 		p_label: String,
 		p_index: int,
 		p_port_type: DeckNode.PortType,
diff --git a/classes/types/deck_type.gd b/classes/types/deck_type.gd
index f011c1a..0772628 100644
--- a/classes/types/deck_type.gd
+++ b/classes/types/deck_type.gd
@@ -1,161 +1,45 @@
 class_name DeckType
-## Base class for defining the types that can be used on a [Port].
 
-var _value: Variant
-var _success: bool = true
+enum Types{
+	BOOL,
+	NUMERIC,
+	STRING,
+	ARRAY,
+	DICTIONARY,
+	ANY,
+}
+
+const CONVERSION_MAP := {
+	Types.BOOL: [Types.NUMERIC, Types.STRING, Types.ANY],
+	Types.NUMERIC: [Types.BOOL, Types.STRING, Types.ANY],
+	Types.STRING: [Types.BOOL, Types.NUMERIC, Types.ANY],
+	Types.ARRAY: [Types.STRING, Types.BOOL, Types.ANY],
+	Types.DICTIONARY: [Types.STRING, Types.BOOL, Types.ANY],
+	Types.ANY: [Types.BOOL, Types.NUMERIC, Types.STRING, Types.ARRAY, Types.DICTIONARY]
+}
+
+const GODOT_TYPES_MAP := {
+	Types.BOOL: TYPE_BOOL,
+	Types.NUMERIC: TYPE_FLOAT,
+	Types.STRING: TYPE_STRING,
+	Types.ARRAY: TYPE_ARRAY,
+	Types.DICTIONARY: TYPE_DICTIONARY,
+}
 
 
-## Returns [code]true[/code] if the type is valid and can be used.
-func is_valid() -> bool:
-	return _success
+static func can_convert(from: Types, to: Types) -> bool:
+	if from == to:
+		return true
+
+	return (to in (CONVERSION_MAP[from] as Array))
 
 
-func get_value() -> Variant:
-	return _value
+static func convert_value(value: Variant, to: Types) -> Variant:
+	if to == Types.ANY:
+		return value
+
+	return type_convert(value, GODOT_TYPES_MAP[to])
 
 
-func set_value(new_value: Variant) -> void:
-	_value = new_value
-
-
-## Virtual function. Used to convert [param other] to the overriding class' type.
-static func from(other: DeckType) -> DeckType:
-	return null
-
-
-## Generic Error type.
-##
-## Always returns [code]null[/code] as the value, and [code]false[/code] as success.[br]
-## Always returns a new [DeckType.DeckTypeError] on conversion from any other type.
-class DeckTypeError extends DeckType:
-	## An optional error message.
-	var error_message: String
-
-
-	func _init(p_error_message: String = ""):
-		_value = self
-		_success = false
-
-		error_message = p_error_message
-
-
-	static func from(other: DeckType) -> DeckTypeError:
-		return DeckTypeError.new()
-
-
-## Numeric type. Corresponds to the JSON number type, so only supports the float primitive type.
-class DeckTypeNumeric extends DeckType:
-	func _init(value: float = 0.0) -> void:
-		_value = value
-
-	## Converts either a [DeckType.DeckTypeString] or [DeckType.DeckTypeBool] to numeric.
-	## In the case of [DeckType.DeckTypeBool], [code]1.0[/code] is used for [code]true[/code],
-	## [code]0.0[/code] for [code]false[/code].[br]
-	## In the case of [DeckType.DeckTypeString], converts to String if it is a valid number
-	## or [DeckType.DeckTypeError] otherwise.
-	static func from(other: DeckType) -> DeckType:
-		if other is DeckTypeNumeric:
-			return other
-
-		if other is DeckTypeString:
-			if (other.get_value() as String).is_valid_float():
-				var value: float = float(other.get_value() as String)
-				var inst := DeckTypeNumeric.new()
-				inst._value = value
-				return inst
-			else:
-				var err: DeckTypeError = DeckTypeError.from(other)
-				err.error_message = "Conversion from String to Numeric failed, check the number"
-				return err
-
-		if other is DeckTypeBool:
-			var inst := DeckTypeNumeric.new()
-			inst._value = float(other.get_value() as bool)
-			return inst
-
-		var err: DeckTypeError = DeckTypeError.from(other)
-		err.error_message = "Conversion to Numeric is only possible from String or Bool"
-		return err
-
-
-## String type. Corresponds to the JSON string type. Any type can be converted to String.
-class DeckTypeString extends DeckType:
-	func _init(value: String = "") -> void:
-		_value = value
-
-
-	static func from(other: DeckType) -> DeckTypeString:
-		if other is DeckTypeString:
-			return other
-
-		var inst := DeckTypeString.new()
-		inst._value = var_to_str(other.get_value())
-		return inst
-
-
-## Boolean type. Corresponds to the JSON bool type.
-class DeckTypeBool extends DeckType:
-	func _init(value: bool = false) -> void:
-		_value = value
-
-	## Converts either [DeckType.DeckTypeNumeric], [DeckType.DeckTypeDictionary] or [DeckType.DeckTypeArray]
-	## to a boolean.[br]
-	## In the case of [DeckType.DeckTypeNumeric], the resulting value will be [code]false[/code]
-	## if the value is a zero value ([code]0.0[/code] and [code]-0.0[/code]), [code]true[/code] otherwise.[br]
-	## In the case of [DeckType.DeckTypeDictionary] or [DeckType.DeckTypeArray],
-	## the resulting value will be [code]true[/code] if the container is not empty.
-	static func from(other: DeckType) -> DeckType:
-		if other is DeckTypeBool:
-			return other
-
-		if other is DeckTypeNumeric:
-			var inst := DeckTypeBool.new()
-			inst._value = bool(other.get_value())
-			return inst
-
-		if other is DeckTypeDictionary or other is DeckTypeArray:
-			var inst := DeckTypeBool.new()
-			inst._value = !other.get_value().is_empty()
-			return inst
-
-		var err := DeckTypeError.from(other)
-		err.error_message = "Cannot create a DeckTypeBool from non-numeric or non-container type"
-		return err
-
-
-## Array type. Corresponds to the JSON Array type.
-class DeckTypeArray extends DeckType:
-	func _init(value: Array = []) -> void:
-		_value = value
-
-
-	## Arrays can only be converted from a string in the format
-	## [code]"["foo", 2, "bar"][/code].
-	static func from(other: DeckType) -> DeckType:
-		if other is DeckTypeString:
-			var inst := DeckTypeArray.new()
-			inst._value = str_to_var(other.get_value())
-			return inst
-
-		var err: DeckTypeError = DeckTypeError.from(other)
-		err.error_message = "Conversions to Array is only possible from String"
-		return err
-
-
-## Dictionary class. Corresponds to the JSON Object type.
-class DeckTypeDictionary extends DeckType:
-	func _init(value: Dictionary = {}) -> void:
-		_value = value
-
-
-	## Dictionaries can only be converted from a string in the format
-	## [code]{"key": "value"}[/code].
-	static func from(other: DeckType) -> DeckType:
-		if other is DeckTypeString:
-			var inst := DeckTypeDictionary.new()
-			inst._value = str_to_var(other.get_value())
-			return inst
-
-		var err: DeckTypeError = DeckTypeError.from(other)
-		err.error_message = "conversions to Dictionary is only possible from String"
-		return err
+static func type_str(type: Types) -> String:
+	return str(Types.keys()[type])
diff --git a/graph_node_renderer/deck_node_renderer_graph_node.gd b/graph_node_renderer/deck_node_renderer_graph_node.gd
index 7aec59e..350d29b 100644
--- a/graph_node_renderer/deck_node_renderer_graph_node.gd
+++ b/graph_node_renderer/deck_node_renderer_graph_node.gd
@@ -25,12 +25,12 @@ func _ready() -> void:
 				if port.port_type == DeckNode.PortType.OUTPUT:
 					button.pressed.connect(
 						func():
-							node.send(port.index_of_type, DeckType.DeckTypeBool.new(true))
+							node.send(port.index_of_type, true)
 					)
 				elif port.port_type == DeckNode.PortType.INPUT:
 					button.pressed.connect(
 						func():
-							node._receive(port.index_of_type, DeckType.DeckTypeBool.new(true))
+							node._receive(port.index_of_type, true)
 					)
 			"field":
 				var line_edit := LineEdit.new()
@@ -48,10 +48,10 @@ func _ready() -> void:
 		set_slot(
 			port.index,
 			port.port_type == DeckNode.PortType.INPUT,
-			0,
+			port.type,
 			Color.WHITE,
 			port.port_type == DeckNode.PortType.OUTPUT,
-			0,
+			port.type,
 			Color.WHITE,
 		)
 
@@ -82,12 +82,12 @@ func _on_node_port_added(port_idx: int) -> void:
 			if port.port_type == DeckNode.PortType.OUTPUT:
 				button.pressed.connect(
 					func():
-						node.send(port.index_of_type, DeckType.DeckTypeBool.new(true))
+						node.send(port.index_of_type, true)
 				)
 			elif port.port_type == DeckNode.PortType.INPUT:
 				button.pressed.connect(
 					func():
-						node._receive(port.index_of_type, DeckType.DeckTypeBool.new(true))
+						node._receive(port.index_of_type, true)
 				)
 		"field":
 			var line_edit := LineEdit.new()
@@ -105,10 +105,10 @@ func _on_node_port_added(port_idx: int) -> void:
 	set_slot(
 		port.index,
 		port.port_type == DeckNode.PortType.INPUT,
-		0,
+		port.type,
 		Color.WHITE,
 		port.port_type == DeckNode.PortType.OUTPUT,
-		0,
+		port.type,
 		Color.WHITE,
 	)
 
@@ -144,12 +144,12 @@ func _on_node_ports_updated() -> void:
 				if port.port_type == DeckNode.PortType.OUTPUT:
 					button.pressed.connect(
 						func():
-							node.send(port.index_of_type, DeckType.DeckTypeBool.new(true))
+							node.send(port.index_of_type, true)
 					)
 				elif port.port_type == DeckNode.PortType.INPUT:
 					button.pressed.connect(
 						func():
-							node._receive(port.index_of_type, DeckType.DeckTypeBool.new(true))
+							node._receive(port.index_of_type, true)
 					)
 			"field":
 				var line_edit := LineEdit.new()
@@ -167,9 +167,9 @@ func _on_node_ports_updated() -> void:
 		set_slot(
 			port.index,
 			port.port_type == DeckNode.PortType.INPUT,
-			0,
+			port.type,
 			Color.WHITE,
 			port.port_type == DeckNode.PortType.OUTPUT,
-			0,
+			port.type,
 			Color.WHITE,
 		)
diff --git a/graph_node_renderer/deck_renderer_graph_edit.gd b/graph_node_renderer/deck_renderer_graph_edit.gd
index 1b900b8..3cdd2e9 100644
--- a/graph_node_renderer/deck_renderer_graph_edit.gd
+++ b/graph_node_renderer/deck_renderer_graph_edit.gd
@@ -37,6 +37,10 @@ func _ready() -> void:
 	search_popup_panel.size = search_popup_size
 	add_child(search_popup_panel, false, Node.INTERNAL_MODE_BACK)
 
+	for t: DeckType.Types in DeckType.CONVERSION_MAP:
+		for out_type: DeckType.Types in DeckType.CONVERSION_MAP[t]:
+			add_valid_connection_type(t, out_type)
+
 	add_node_menu.node_selected.connect(_on_add_node_menu_node_selected)
 
 	connection_request.connect(attempt_connection)
diff --git a/script_templates/DeckNode/node_template.gd b/script_templates/DeckNode/node_template.gd
index a94b5ea..8346316 100644
--- a/script_templates/DeckNode/node_template.gd
+++ b/script_templates/DeckNode/node_template.gd
@@ -5,10 +5,11 @@ func _init() -> void:
 	name = ""
 	node_type = name.to_snake_case()
 	description = ""
+	category = ""
 
 	props_to_serialize = []
-	
 
 
-func _receive(to_input_port: int, data: DeckType, extra_data: Array = []) -> void:
+
+func _receive(to_input_port: int, data: Variant, extra_data: Array = []) -> void:
 	pass