diff --git a/classes/deck/deck_holder.gd b/classes/deck/deck_holder.gd
index 07e981a..c5c23c9 100644
--- a/classes/deck/deck_holder.gd
+++ b/classes/deck/deck_holder.gd
@@ -26,8 +26,8 @@ static func add_empty_deck() -> Deck:
 	var uuid := UUID.v4()
 	decks[uuid] = deck
 	deck.id = uuid
-	signals.deck_added.emit(uuid)
 	deck.connect_rpc_signals()
+	signals.deck_added.emit(uuid)
 	return deck
 
 
@@ -44,8 +44,8 @@ static func open_deck_from_file(path: String) -> Deck:
 static func open_deck_from_dict(data: Dictionary, path := "") -> Deck:
 	var deck := Deck.from_dict(data, path)
 	decks[deck.id] = deck
-	signals.deck_added.emit(deck.id)
 	deck.connect_rpc_signals()
+	signals.deck_added.emit(deck.id)
 	return deck
 
 
@@ -61,6 +61,7 @@ static func add_group_from_dict(data: Dictionary, deck_id: String, instance_id:
 	connect_group_signals(group)
 	
 	if deck_id not in groups_emitted:
+		group.connect_rpc_signals()
 		signals.deck_added.emit(deck_id)
 		groups_emitted.append(deck_id)
 	
@@ -81,6 +82,7 @@ static func add_empty_group() -> Deck:
 	decks[group.id] = {group.instance_id: group}
 	connect_group_signals(group)
 	if group.id not in groups_emitted:
+		group.connect_rpc_signals()
 		signals.deck_added.emit(group.id)
 		groups_emitted.append(group.id)
 	return group
diff --git a/graph_node_renderer/debug_decks_list.gd b/graph_node_renderer/debug_decks_list.gd
index edb876f..3381f2b 100644
--- a/graph_node_renderer/debug_decks_list.gd
+++ b/graph_node_renderer/debug_decks_list.gd
@@ -18,7 +18,18 @@ func _ready() -> void:
 			b.pressed.connect(func():
 				item_pressed.emit(deck_id, "")
 				)
-			add_child(b)
+			var cb := Button.new()
+			cb.text = "Copy"
+			cb.pressed.connect(
+				func():
+					DisplayServer.clipboard_set(deck_id)
+			)
+			
+			var hb := HBoxContainer.new()
+			hb.add_child(b)
+			hb.add_child(cb)
+			
+			add_child(hb)
 		else:
 			for instance_id: String in DeckHolder.decks[deck_id]:
 				var b := Button.new()
diff --git a/graph_node_renderer/debug_nodes_list.gd b/graph_node_renderer/debug_nodes_list.gd
new file mode 100644
index 0000000..165e20c
--- /dev/null
+++ b/graph_node_renderer/debug_nodes_list.gd
@@ -0,0 +1,18 @@
+# (c) 2023-present Eroax
+# (c) 2023-present Yagich
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+extends VBoxContainer
+class_name DebugNodesList
+
+
+func build(deck: Deck) -> void:
+	get_children().map(func(e: Node): e.queue_free())
+	for node_id in deck.nodes:
+		var b := Button.new()
+		var node = deck.get_node(node_id)
+		b.text = "%s (%s)" % [node.name, node._id.left(8)]
+		b.pressed.connect(
+			func():
+				DisplayServer.clipboard_set(node_id)
+		)
+		add_child(b)
diff --git a/graph_node_renderer/debug_nodes_list.tscn b/graph_node_renderer/debug_nodes_list.tscn
new file mode 100644
index 0000000..7e67bc9
--- /dev/null
+++ b/graph_node_renderer/debug_nodes_list.tscn
@@ -0,0 +1,8 @@
+[gd_scene load_steps=2 format=3 uid="uid://cddfyvpf5nqq7"]
+
+[ext_resource type="Script" path="res://graph_node_renderer/debug_nodes_list.gd" id="1_jciri"]
+
+[node name="DebugNodesList" type="VBoxContainer"]
+offset_right = 40.0
+offset_bottom = 40.0
+script = ExtResource("1_jciri")
diff --git a/graph_node_renderer/deck_holder_renderer.gd b/graph_node_renderer/deck_holder_renderer.gd
index 05997f0..f2d5c95 100644
--- a/graph_node_renderer/deck_holder_renderer.gd
+++ b/graph_node_renderer/deck_holder_renderer.gd
@@ -11,6 +11,7 @@ class_name DeckHolderRenderer
 ## Reference to the base scene for [DeckRendererGraphEdit]
 @export var DECK_SCENE: PackedScene
 @export var DEBUG_DECKS_LIST: PackedScene
+@export var DEBUG_NODES_LIST: PackedScene
 
 const PERSISTENCE_NAMESPACE := "default"
 
@@ -48,6 +49,7 @@ enum ConnectionsMenuId {
 
 enum DebugMenuId {
 	DECKS,
+	NODES,
 	EMBED_SUBWINDOWS,
 }
 @onready var debug_popup_menu: PopupMenu = %Debug
@@ -377,6 +379,15 @@ func _on_debug_id_pressed(id: int) -> void:
 			debug_decks.item_pressed.connect(_on_debug_decks_viewer_item_pressed)
 			add_child(d)
 			d.popup_centered()
+		DebugMenuId.NODES:
+			var d := AcceptDialog.new()
+			var debug_nodes: DebugNodesList = DEBUG_NODES_LIST.instantiate()
+			d.add_child(debug_nodes)
+			d.canceled.connect(d.queue_free)
+			d.confirmed.connect(d.queue_free)
+			debug_nodes.build(get_active_deck())
+			add_child(d)
+			d.popup_centered()
 		DebugMenuId.EMBED_SUBWINDOWS:
 			var c := debug_popup_menu.is_item_checked(id)
 			debug_popup_menu.set_item_checked(id, not c)
diff --git a/graph_node_renderer/deck_holder_renderer.tscn b/graph_node_renderer/deck_holder_renderer.tscn
index f144eb7..7acde6f 100644
--- a/graph_node_renderer/deck_holder_renderer.tscn
+++ b/graph_node_renderer/deck_holder_renderer.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=24 format=3 uid="uid://duaah5x0jhkn6"]
+[gd_scene load_steps=25 format=3 uid="uid://duaah5x0jhkn6"]
 
 [ext_resource type="Script" path="res://graph_node_renderer/deck_holder_renderer.gd" id="1_67g2g"]
 [ext_resource type="PackedScene" uid="uid://b84f2ngtcm5b8" path="res://graph_node_renderer/tab_container_custom.tscn" id="1_s3ug2"]
@@ -8,6 +8,7 @@
 [ext_resource type="Script" path="res://addons/no-obs-ws/NoOBSWS.gd" id="4_nu72u"]
 [ext_resource type="PackedScene" uid="uid://dm7sc6364j84i" path="res://graph_node_renderer/debug_decks_list.tscn" id="4_ux0jt"]
 [ext_resource type="Script" path="res://addons/no_twitch/twitch_connection.gd" id="5_3n36q"]
+[ext_resource type="PackedScene" uid="uid://cddfyvpf5nqq7" path="res://graph_node_renderer/debug_nodes_list.tscn" id="5_pnfg8"]
 [ext_resource type="PackedScene" uid="uid://eioso6jb42jy" path="res://graph_node_renderer/obs_websocket_setup_dialog.tscn" id="5_uo2gj"]
 [ext_resource type="PackedScene" uid="uid://bq2lxmbnic4lc" path="res://graph_node_renderer/twitch_setup_dialog.tscn" id="7_7rhap"]
 [ext_resource type="PackedScene" uid="uid://cuwou2aa7qfc2" path="res://graph_node_renderer/unsaved_changes_dialog_single_deck.tscn" id="8_qf6ve"]
@@ -71,6 +72,7 @@ theme = ExtResource("1_tgul2")
 script = ExtResource("1_67g2g")
 DECK_SCENE = ExtResource("3_uf16c")
 DEBUG_DECKS_LIST = ExtResource("4_ux0jt")
+DEBUG_NODES_LIST = ExtResource("5_pnfg8")
 new_deck_shortcut = SubResource("Shortcut_30rq6")
 open_deck_shortcut = SubResource("Shortcut_m48tj")
 save_deck_shortcut = SubResource("Shortcut_xr6s4")
@@ -135,13 +137,15 @@ item_1/id = 1
 
 [node name="Debug" type="PopupMenu" parent="MarginContainer/VSplitContainer/VBoxContainer/MenuBar"]
 unique_name_in_owner = true
-item_count = 2
+item_count = 3
 item_0/text = "Decks..."
 item_0/id = 0
-item_1/text = "Embed subwindows"
-item_1/checkable = 1
-item_1/checked = true
+item_1/text = "Nodes..."
 item_1/id = 1
+item_2/text = "Embed subwindows"
+item_2/checkable = 1
+item_2/checked = true
+item_2/id = 2
 
 [node name="Help" type="PopupMenu" parent="MarginContainer/VSplitContainer/VBoxContainer/MenuBar"]
 unique_name_in_owner = true
diff --git a/graph_node_renderer/deck_renderer_graph_edit.gd b/graph_node_renderer/deck_renderer_graph_edit.gd
index 02df6a3..99d0103 100644
--- a/graph_node_renderer/deck_renderer_graph_edit.gd
+++ b/graph_node_renderer/deck_renderer_graph_edit.gd
@@ -188,7 +188,9 @@ func _on_deck_node_removed(node: DeckNode) -> void:
 	for renderer: DeckNodeRendererGraphNode in get_children():
 		if renderer.node != node:
 			continue
-
+		# TODO: when multiple nodes are removed and they are connected, the renderer will break
+		# trying to get an invalid node. (GraphEdit, this is not on us.)
+		# consider a batch removed signal for Deck or a separate signal for grouping nodes in 0.0.6.
 		renderer.queue_free()
 		break
 	dirty = true
diff --git a/rpc_renderer/rpc_renderer.gd b/rpc_renderer/rpc_renderer.gd
index d5f8151..5e40798 100644
--- a/rpc_renderer/rpc_renderer.gd
+++ b/rpc_renderer/rpc_renderer.gd
@@ -105,10 +105,19 @@ func _on_ws_message(peer_id: int, message: Variant) -> void:
 		return
 	
 	var req := RPCRequest.from_dict(result.data, peer_id)
-	for scope in scopes:
-		if scope.can_handle_request(req):
-			scope.handle_request(req)
-			return
+	var scope_idx := -1
+	for i in scopes.size():
+		var scope := scopes[i]
+		if scope.name == req.scope:
+			scope_idx = i
+			break
+
+	if scope_idx == -1:
+		return # TODO: error
+	
+	var scope := scopes[scope_idx]
+	if scope.can_handle_request(req):
+		scope.handle_request(req)
 
 
 func _on_ws_client_connected(peer_id: int) -> void:
diff --git a/rpc_renderer/rpc_scope.gd b/rpc_renderer/rpc_scope.gd
index 1d9cf9b..16d5717 100644
--- a/rpc_renderer/rpc_scope.gd
+++ b/rpc_renderer/rpc_scope.gd
@@ -79,6 +79,20 @@ func create_generic_success(request: RPCRequest) -> RPCRequestResponse:
 	return r
 
 
+func create_generic_failure(request: RPCRequest) -> RPCRequestResponse:
+	var r := RPCRequestResponse.new(request)
+	r.for_request = request.id
+	r.scope = name
+	r.kept = request.keep
+	r.peer_id = request.peer_id
+	
+	r.data = {
+		"success": false
+	}
+	
+	return r
+
+
 func create_event(type: String, data: Variant, condition := {}) -> RPCEvent:
 	return RPCEvent.new(type, name, data, condition)
 
diff --git a/rpc_renderer/scopes/scope_deck.gd b/rpc_renderer/scopes/scope_deck.gd
index 3049009..95e57b2 100644
--- a/rpc_renderer/scopes/scope_deck.gd
+++ b/rpc_renderer/scopes/scope_deck.gd
@@ -9,6 +9,21 @@ func _init() -> void:
 	
 	operation_types = {
 		"add_node": add_node,
+		"remove_node": remove_node,
+		"get_node": get_node,
+		
+		"is_valid_connection": is_valid_connection,
+		"connect_nodes": connect_nodes,
+		"disconnect_nodes": disconnect_nodes,
+		
+		"group_nodes": group_nodes,
+		
+		"set_variable": set_variable,
+		"get_variable": get_variable,
+		"get_variable_list": get_variable_list,
+		
+		"send_event": send_event,
+		"get_referenced_groups": get_referenced_groups,
 	}
 
 	RPCSignalLayer.signals.deck_node_added.connect(_on_deck_node_added)
@@ -16,6 +31,7 @@ func _init() -> void:
 	
 	RPCSignalLayer.signals.deck_nodes_connected.connect(_on_deck_nodes_connected)
 	RPCSignalLayer.signals.deck_nodes_disconnected.connect(_on_deck_nodes_disconnected)
+	RPCSignalLayer.signals.deck_variables_updated.connect(_on_deck_variables_updated)
 
 
 func add_node(r: RPCRequest) -> void:
@@ -36,6 +52,174 @@ func add_node(r: RPCRequest) -> void:
 	)
 
 
+func remove_node(r: RPCRequest) -> void:
+	reconnect(
+		RPCSignalLayer.signals.deck_node_removed,
+		_on_deck_node_removed,
+		func():
+			var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+			var node_id: String = r.operation.payload.node_id
+			
+			deck.remove_node(node_id, true)
+			
+			var node_partial := RPCNodePartial.new()
+			node_partial.deck_id = deck.id
+			node_partial.id = node_id
+			
+			var resp := create_generic_success(r)
+			resp.create_event_counterpart(node_partial)
+			response.emit(resp)
+	)
+
+
+func get_node(r: RPCRequest) -> void:
+	var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+	var node := deck.get_node(r.operation.payload.node_id)
+	var node_data := node.to_dict()
+	
+	var resp := create_response(r, {"node": node_data})
+	response.emit(resp)
+
+
+func is_valid_connection(r: RPCRequest) -> void:
+	var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+	var from_node_id: String = r.operation.payload.from_node_id
+	var from_output_port := int(r.operation.payload.from_output_port)
+	var to_node_id: String = r.operation.payload.to_node_id
+	var to_input_port := int(r.operation.payload.to_input_port)
+	
+	var is_valid = deck.is_valid_connection(from_node_id, to_node_id, from_output_port, to_input_port)
+	
+	var resp := create_response(r, {"valid": is_valid})
+	response.emit(resp)
+
+
+func connect_nodes(r: RPCRequest) -> void:
+	reconnect(
+		RPCSignalLayer.signals.deck_nodes_connected,
+		_on_deck_nodes_connected,
+		func():
+			var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+			var from_node_id: String = r.operation.payload.from_node_id
+			var from_output_port := int(r.operation.payload.from_output_port)
+			var to_node_id: String = r.operation.payload.to_node_id
+			var to_input_port := int(r.operation.payload.to_input_port)
+			
+			var connected := deck.connect_nodes(from_node_id, to_node_id, from_output_port, to_input_port)
+			if connected:
+				var connection := RPCNodeConnection.new()
+				connection.from_node_id = from_node_id
+				connection.to_node_id = to_node_id
+				connection.from_output_port = from_output_port
+				connection.to_input_port = to_input_port
+				var resp := create_generic_success(r)
+				resp.create_event_counterpart(connection)
+				response.emit(resp)
+			else:
+				var err := create_generic_failure(r)
+				response.emit(err)
+	)
+
+
+func disconnect_nodes(r: RPCRequest) -> void:
+	reconnect(
+		RPCSignalLayer.signals.deck_nodes_disconnected,
+		_on_deck_nodes_disconnected,
+		func():
+			var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+			var from_node_id: String = r.operation.payload.from_node_id
+			var from_output_port := int(r.operation.payload.from_output_port)
+			var to_node_id: String = r.operation.payload.to_node_id
+			var to_input_port := int(r.operation.payload.to_input_port)
+			
+			deck.disconnect_nodes(from_node_id, to_node_id, from_output_port, to_input_port)
+			
+			var connection := RPCNodeConnection.new()
+			connection.from_node_id = from_node_id
+			connection.to_node_id = to_node_id
+			connection.from_output_port = from_output_port
+			connection.to_input_port = to_input_port
+			
+			var resp := create_generic_success(r)
+			resp.create_event_counterpart(connection)
+			response.emit(resp)
+	)
+
+
+func group_nodes(r: RPCRequest) -> void:
+	reconnect(
+		RPCSignalLayer.signals.deck_node_removed,
+		_on_deck_node_removed,
+		func():
+			var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+			var node_ids: Array = r.operation.payload.nodes
+			var nodes := node_ids.map(
+				func(e: String):
+					return deck.get_node(e)
+			)
+			var group := deck.group_nodes(nodes)
+			if group == null:
+				var err := create_error(r, "Error grouping")
+				response.emit(err)
+			else:
+				var dp := RPCDeckPartial.new(group)
+				var resp := create_response(r, dp)
+				resp.create_event_counterpart(node_ids)
+				response.emit(resp)
+	)
+
+
+func set_variable(r: RPCRequest) -> void:
+	reconnect(
+		RPCSignalLayer.signals.deck_variables_updated,
+		_on_deck_variables_updated,
+		func():
+			var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+			var var_name: String = r.operation.payload.name
+			var var_value = r.operation.payload.value
+			
+			deck.set_variable(var_name, var_value)
+			var resp := create_generic_success(r)
+			resp.create_event_counterpart({})
+			response.emit(resp)
+	)
+
+
+func get_variable(r: RPCRequest) -> void:
+	var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+	var var_name: String = r.operation.payload.name
+	var value = deck.variable_stack.get(var_name)
+	
+	var resp := create_response(r, {"name": var_name, "value": value})
+	response.emit(resp)
+
+
+func get_variable_list(r: RPCRequest) -> void:
+	var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+	
+	var resp := create_response(r, {"variables": deck.variable_stack.keys()})
+	response.emit(resp)
+
+
+func send_event(r: RPCRequest) -> void:
+	var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+	var event_name: StringName = r.operation.payload.event_name
+	var event_data: Dictionary = r.operation.payload.get("event_data", {})
+	
+	deck.send_event(event_name, event_data)
+	
+	var resp := create_generic_success(r)
+	response.emit(resp)
+
+
+func get_referenced_groups(r: RPCRequest) -> void:
+	var deck := DeckHolder.get_deck(r.operation.condition.deck_id)
+	var groups := deck.get_referenced_groups()
+	
+	var resp := create_response(r, {"groups": groups})
+	response.emit(resp)
+
+
 func _on_deck_node_added(deck_id: String, node_id: String) -> void:
 	event.emit(create_event("node_added", {"node_id": node_id}, {"deck_id": deck_id}))
 
@@ -64,3 +248,8 @@ func _on_deck_nodes_disconnected(deck_id: String, from_node_id: String, to_node_
 
 	var ev := create_event("nodes_disconnected", connection, {"deck_id": deck_id})
 	event.emit(ev)
+
+
+func _on_deck_variables_updated(deck_id: String) -> void:
+	var ev := create_event("variables_updated", {}, {"deck_id": deck_id})
+	event.emit(ev)
diff --git a/rpc_renderer/scopes/scope_deck_holder.gd b/rpc_renderer/scopes/scope_deck_holder.gd
index ff2fba1..caf4de9 100644
--- a/rpc_renderer/scopes/scope_deck_holder.gd
+++ b/rpc_renderer/scopes/scope_deck_holder.gd
@@ -11,17 +11,12 @@ func _init() -> void:
 		#"new_deck": new_deck, # TODO: evaluate later
 		"get_deck": get_deck,
 		"send_event": send_event,
-		"error": error,
 	}
 	
 	RPCSignalLayer.signals.deck_added.connect(_on_deck_holder_deck_added)
 	RPCSignalLayer.signals.deck_closed.connect(_on_deck_holder_deck_closed)
 
 
-func error(r: RPCRequest) -> void:
-	response.emit(create_error(r, "random error"))
-
-
 func new_deck(r: RPCRequest) -> void:
 	reconnect(
 		RPCSignalLayer.signals.deck_added,