diff --git a/blackboard/bb_variable.cpp b/blackboard/bb_variable.cpp
index fda7c80..12ad83b 100644
--- a/blackboard/bb_variable.cpp
+++ b/blackboard/bb_variable.cpp
@@ -11,6 +11,8 @@
 
 #include "bb_variable.h"
 
+#include "../util/limbo_compat.h"
+
 void BBVariable::unref() {
 	if (data && data->refcount.unref()) {
 		memdelete(data);
@@ -36,6 +38,7 @@ Variant BBVariable::get_value() const {
 
 void BBVariable::set_type(Variant::Type p_type) {
 	data->type = p_type;
+	data->value = VARIANT_DEFAULT(p_type);
 }
 
 Variant::Type BBVariable::get_type() const {
@@ -136,9 +139,13 @@ BBVariable::BBVariable(const BBVariable &p_var) {
 	}
 }
 
-BBVariable::BBVariable() {
+BBVariable::BBVariable(Variant::Type p_type, PropertyHint p_hint, const String &p_hint_string) {
 	data = memnew(Data);
 	data->refcount.init();
+
+	set_type(p_type);
+	data->hint = p_hint;
+	data->hint_string = p_hint_string;
 }
 
 BBVariable::~BBVariable() {
diff --git a/blackboard/bb_variable.h b/blackboard/bb_variable.h
index d5b2fc3..d6d2371 100644
--- a/blackboard/bb_variable.h
+++ b/blackboard/bb_variable.h
@@ -14,6 +14,7 @@
 
 #include "core/object/object.h"
 #include "core/templates/safe_refcount.h"
+#include "core/variant/variant.h"
 
 class BBVariable {
 private:
@@ -60,7 +61,7 @@ public:
 	void operator=(const BBVariable &p_var);
 
 	BBVariable(const BBVariable &p_var);
-	BBVariable();
+	BBVariable(Variant::Type p_type = Variant::Type::NIL, PropertyHint p_hint = PROPERTY_HINT_NONE, const String &p_hint_string = "");
 	~BBVariable();
 };
 
diff --git a/blackboard/blackboard_source.cpp b/blackboard/blackboard_source.cpp
index 08cfb96..9d1b718 100644
--- a/blackboard/blackboard_source.cpp
+++ b/blackboard/blackboard_source.cpp
@@ -11,6 +11,93 @@
 
 #include "blackboard_source.h"
 
+bool BlackboardSource::_set(const StringName &p_name, const Variant &p_value) {
+	String prop_name = p_name;
+
+	// * Editor
+	if (data.has(prop_name)) {
+		data[prop_name].set_value(p_value);
+		return true;
+	}
+
+	// * Storage
+	if (prop_name.begins_with("var/")) {
+		String var_name = prop_name.get_slicec('/', 1);
+		String what = prop_name.get_slicec('/', 2);
+		if (!data.has(var_name) && what == "name") {
+			data.insert(var_name, BBVariable());
+		}
+		if (what == "name") {
+			// We don't store variable name with the variable.
+		} else if (what == "type") {
+			data[var_name].set_type((Variant::Type)(int)p_value);
+		} else if (what == "value") {
+			data[var_name].set_value(p_value);
+		} else if (what == "hint") {
+			data[var_name].set_hint((PropertyHint)(int)p_value);
+		} else if (what == "hint_string") {
+			data[var_name].set_hint_string(p_value);
+		} else {
+			return false;
+		}
+		return true;
+	}
+
+	return false;
+}
+
+bool BlackboardSource::_get(const StringName &p_name, Variant &r_ret) const {
+	String prop_name = p_name;
+
+	// * Editor
+	if (data.has(prop_name)) {
+		r_ret = data[prop_name].get_value();
+		return true;
+	}
+
+	// * Storage
+	if (!prop_name.begins_with("var/")) {
+		return false;
+	}
+
+	String var_name = prop_name.get_slicec('/', 1);
+	String what = prop_name.get_slicec('/', 2);
+	ERR_FAIL_COND_V(!data.has(var_name), false);
+	if (what == "type") {
+		r_ret = data[var_name].get_type();
+	} else if (what == "value") {
+		r_ret = data[var_name].get_value();
+	} else if (what == "hint") {
+		r_ret = data[var_name].get_hint();
+	} else if (what == "hint_string") {
+		r_ret = data[var_name].get_hint_string();
+	}
+	return true;
+}
+
+void BlackboardSource::_get_property_list(List<PropertyInfo> *p_list) const {
+	for (const KeyValue<String, BBVariable> &kv : data) {
+		String var_name = kv.key;
+		BBVariable var = kv.value;
+
+		// * Editor
+		p_list->push_back(PropertyInfo(var.get_type(), var_name, var.get_hint(), var.get_hint_string(), PROPERTY_USAGE_EDITOR));
+
+		// * Storage
+		p_list->push_back(PropertyInfo(Variant::STRING, "var/" + var_name + "/name", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
+		p_list->push_back(PropertyInfo(Variant::INT, "var/" + var_name + "/type", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
+		p_list->push_back(PropertyInfo(var.get_type(), "var/" + var_name + "/value", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
+		p_list->push_back(PropertyInfo(Variant::INT, "var/" + var_name + "/hint", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
+		p_list->push_back(PropertyInfo(Variant::STRING, "var/" + var_name + "/hint_string", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL));
+	}
+}
+
+void BlackboardSource::set_base_source(const Ref<BlackboardSource> &p_base) {
+	base = p_base;
+	sync_base();
+	emit_changed();
+}
+
 void BlackboardSource::set_value(const String &p_name, const Variant &p_value) {
 	ERR_FAIL_COND(!data.has(p_name));
 	data.get(p_name).set_value(p_value);
@@ -83,3 +170,10 @@ void BlackboardSource::populate_blackboard(const Ref<Blackboard> &p_blackboard,
 		p_blackboard->add_var(kv.key, kv.value.duplicate());
 	}
 }
+
+BlackboardSource::BlackboardSource() {
+	// TODO: REMOVE ALL BELOW
+	data.insert("speed", BBVariable(Variant::Type::FLOAT, PropertyHint::PROPERTY_HINT_NONE, ""));
+	data.insert("limit_speed", BBVariable(Variant::Type::BOOL, PropertyHint::PROPERTY_HINT_NONE, ""));
+	data.insert("about", BBVariable(Variant::Type::STRING, PropertyHint::PROPERTY_HINT_MULTILINE_TEXT, ""));
+}
diff --git a/blackboard/blackboard_source.h b/blackboard/blackboard_source.h
index 38b4b5c..56eaf9c 100644
--- a/blackboard/blackboard_source.h
+++ b/blackboard/blackboard_source.h
@@ -25,7 +25,15 @@ private:
 	Ref<BlackboardSource> base;
 	// HashMap<String, BBVariable> overrides;
 
+protected:
+	bool _set(const StringName &p_name, const Variant &p_value);
+	bool _get(const StringName &p_name, Variant &r_ret) const;
+	void _get_property_list(List<PropertyInfo> *p_list) const;
+
 public:
+	void set_base_source(const Ref<BlackboardSource> &p_base);
+	Ref<BlackboardSource> get_base_source() const { return base; }
+
 	void set_value(const String &p_name, const Variant &p_value);
 	Variant get_value(const String &p_name) const;
 	void add_var(const String &p_name, const BBVariable &p_var);
@@ -38,7 +46,7 @@ public:
 	Ref<Blackboard> create_blackboard();
 	void populate_blackboard(const Ref<Blackboard> &p_blackboard, bool overwrite);
 
-	BlackboardSource() = default;
+	BlackboardSource();
 };
 
 #endif // BLACKBOARD_SOURCE_H
diff --git a/bt/behavior_tree.cpp b/bt/behavior_tree.cpp
index b6fc0d9..5508b6d 100644
--- a/bt/behavior_tree.cpp
+++ b/bt/behavior_tree.cpp
@@ -47,6 +47,8 @@ Ref<BTTask> BehaviorTree::instantiate(Node *p_agent, const Ref<Blackboard> &p_bl
 void BehaviorTree::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_description", "p_value"), &BehaviorTree::set_description);
 	ClassDB::bind_method(D_METHOD("get_description"), &BehaviorTree::get_description);
+	ClassDB::bind_method(D_METHOD("set_blackboard_source", "p_source"), &BehaviorTree::set_blackboard_source);
+	ClassDB::bind_method(D_METHOD("get_blackboard_source"), &BehaviorTree::get_blackboard_source);
 	ClassDB::bind_method(D_METHOD("set_root_task", "p_value"), &BehaviorTree::set_root_task);
 	ClassDB::bind_method(D_METHOD("get_root_task"), &BehaviorTree::get_root_task);
 	ClassDB::bind_method(D_METHOD("clone"), &BehaviorTree::clone);
@@ -55,4 +57,9 @@ void BehaviorTree::_bind_methods() {
 
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "description", PROPERTY_HINT_MULTILINE_TEXT), "set_description", "get_description");
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "root_task", PROPERTY_HINT_RESOURCE_TYPE, "BTTask", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_INTERNAL), "set_root_task", "get_root_task");
+	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "blackboard_source", PROPERTY_HINT_RESOURCE_TYPE, "BlackboardSource", PROPERTY_USAGE_DEFAULT), "set_blackboard_source", "get_blackboard_source");
+}
+
+BehaviorTree::BehaviorTree() {
+	blackboard_source = Ref<BlackboardSource>(memnew(BlackboardSource));
 }
diff --git a/bt/behavior_tree.h b/bt/behavior_tree.h
index ffd6f53..3687524 100644
--- a/bt/behavior_tree.h
+++ b/bt/behavior_tree.h
@@ -12,11 +12,11 @@
 #ifndef BEHAVIOR_TREE_H
 #define BEHAVIOR_TREE_H
 
+#include "../blackboard/blackboard_source.h"
 #include "tasks/bt_task.h"
 
 #ifdef LIMBOAI_MODULE
 #include "core/io/resource.h"
-#include "modules/limboai/blackboard/blackboard.h"
 #endif // LIMBOAI_MODULE
 
 #ifdef LIMBOAI_GDEXTENSION
@@ -29,6 +29,7 @@ class BehaviorTree : public Resource {
 
 private:
 	String description;
+	Ref<BlackboardSource> blackboard_source;
 	Ref<BTTask> root_task;
 
 protected:
@@ -39,6 +40,12 @@ public:
 	virtual bool editor_can_reload_from_file() override { return false; }
 #endif
 
+	void set_blackboard_source(const Ref<BlackboardSource> &p_source) {
+		blackboard_source = p_source;
+		emit_changed();
+	}
+	Ref<BlackboardSource> get_blackboard_source() const { return blackboard_source; }
+
 	void set_description(String p_value) {
 		description = p_value;
 		emit_changed();
@@ -54,6 +61,8 @@ public:
 	Ref<BehaviorTree> clone() const;
 	void copy_other(const Ref<BehaviorTree> &p_other);
 	Ref<BTTask> instantiate(Node *p_agent, const Ref<Blackboard> &p_blackboard) const;
+
+	BehaviorTree();
 };
 
 #endif // BEHAVIOR_TREE_H
diff --git a/bt/bt_player.cpp b/bt/bt_player.cpp
index b5e6d4e..9358791 100644
--- a/bt/bt_player.cpp
+++ b/bt/bt_player.cpp
@@ -63,11 +63,33 @@ void BTPlayer::_load_tree() {
 #endif
 }
 
+void BTPlayer::_update_blackboard_source() {
+	if (behavior_tree.is_valid() && behavior_tree->get_blackboard_source().is_valid()) {
+		if (blackboard_source.is_null()) {
+			blackboard_source = Ref<BlackboardSource>(memnew(BlackboardSource));
+		}
+		if (blackboard_source == behavior_tree->get_blackboard_source()) {
+			blackboard_source->sync_base();
+		} else {
+			blackboard_source->set_base_source(behavior_tree->get_blackboard_source());
+		}
+	}
+}
+
 void BTPlayer::set_behavior_tree(const Ref<BehaviorTree> &p_tree) {
 	behavior_tree = p_tree;
 	if (Engine::get_singleton()->is_editor_hint() == false && get_owner()) {
 		_load_tree();
 	}
+	_update_blackboard_source();
+}
+
+void BTPlayer::set_blackboard_source(const Ref<BlackboardSource> &p_source) {
+	blackboard_source = p_source;
+	if (blackboard_source.is_null()) {
+		blackboard_source = Ref<BlackboardSource>(memnew(BlackboardSource));
+	}
+	_update_blackboard_source();
 }
 
 void BTPlayer::set_update_mode(UpdateMode p_mode) {
diff --git a/bt/bt_player.h b/bt/bt_player.h
index 70430d9..17238d8 100644
--- a/bt/bt_player.h
+++ b/bt/bt_player.h
@@ -47,6 +47,7 @@ private:
 	Ref<BTTask> tree_instance;
 
 	void _load_tree();
+	void _update_blackboard_source();
 
 protected:
 	static void _bind_methods();
@@ -57,7 +58,7 @@ public:
 	void set_behavior_tree(const Ref<BehaviorTree> &p_tree);
 	Ref<BehaviorTree> get_behavior_tree() const { return behavior_tree; };
 
-	void set_blackboard_source(const Ref<BlackboardSource> &p_source) { blackboard_source = p_source; }
+	void set_blackboard_source(const Ref<BlackboardSource> &p_source);
 	Ref<BlackboardSource> get_blackboard_source() const { return blackboard_source; }
 
 	void set_update_mode(UpdateMode p_mode);
diff --git a/bt/bt_state.cpp b/bt/bt_state.cpp
index 2a18104..f71abb1 100644
--- a/bt/bt_state.cpp
+++ b/bt/bt_state.cpp
@@ -26,6 +26,19 @@
 #include <godot_cpp/classes/engine_debugger.hpp>
 #endif // LIMBOAI_GDEXTENSION
 
+void BTState::_update_blackboard_source() {
+	if (behavior_tree.is_valid() && behavior_tree->get_blackboard_source().is_valid()) {
+		if (get_blackboard_source().is_null()) {
+			set_blackboard_source(Ref<BlackboardSource>(memnew(BlackboardSource)));
+		}
+		if (get_blackboard_source() == behavior_tree->get_blackboard_source()) {
+			get_blackboard_source()->sync_base();
+		} else {
+			get_blackboard_source()->set_base_source(behavior_tree->get_blackboard_source());
+		}
+	}
+}
+
 void BTState::_setup() {
 	ERR_FAIL_COND_MSG(behavior_tree.is_null(), "BTState: BehaviorTree is not assigned.");
 	tree_instance = behavior_tree->instantiate(get_agent(), get_blackboard());
diff --git a/bt/bt_state.h b/bt/bt_state.h
index b3baa74..d492db2 100644
--- a/bt/bt_state.h
+++ b/bt/bt_state.h
@@ -26,6 +26,8 @@ private:
 	String success_event;
 	String failure_event;
 
+	void _update_blackboard_source();
+
 protected:
 	static void _bind_methods();
 
diff --git a/register_types.cpp b/register_types.cpp
index 4d6edf9..181c8b9 100644
--- a/register_types.cpp
+++ b/register_types.cpp
@@ -47,6 +47,7 @@
 #include "blackboard/bb_param/bb_vector4.h"
 #include "blackboard/bb_param/bb_vector4i.h"
 #include "blackboard/blackboard.h"
+#include "blackboard/blackboard_source.h"
 #include "bt/behavior_tree.h"
 #include "bt/bt_player.h"
 #include "bt/bt_state.h"
@@ -133,6 +134,7 @@ void initialize_limboai_module(ModuleInitializationLevel p_level) {
 
 		GDREGISTER_CLASS(LimboUtility);
 		GDREGISTER_CLASS(Blackboard);
+		GDREGISTER_CLASS(BlackboardSource);
 
 		GDREGISTER_CLASS(LimboState);
 		GDREGISTER_CLASS(LimboHSM);
diff --git a/util/limbo_compat.cpp b/util/limbo_compat.cpp
index a02f34a..1e04f86 100644
--- a/util/limbo_compat.cpp
+++ b/util/limbo_compat.cpp
@@ -15,6 +15,7 @@
 
 #ifdef TOOLS_ENABLED
 #include "core/io/resource.h"
+#include "core/variant/variant.h"
 #include "editor/editor_node.h"
 #include "editor/plugins/script_editor_plugin.h"
 #endif // TOOLS_ENABLED
@@ -85,6 +86,128 @@ Variant _GLOBAL_DEF(const PropertyInfo &p_info, const Variant &p_default, bool p
 
 // **** Shared
 
+Variant VARIANT_DEFAULT(Variant::Type p_type) {
+	switch (p_type) {
+		case Variant::Type::NIL: {
+			return Variant();
+		} break;
+		case Variant::Type::BOOL: {
+			return Variant(false);
+		} break;
+		case Variant::Type::INT: {
+			return Variant(0);
+		} break;
+		case Variant::Type::FLOAT: {
+			return Variant(0.0);
+		} break;
+		case Variant::Type::STRING: {
+			return Variant("");
+		} break;
+		case Variant::Type::VECTOR2: {
+			return Variant(Vector2());
+		} break;
+		case Variant::Type::VECTOR2I: {
+			return Variant(Vector2i());
+		} break;
+		case Variant::Type::RECT2: {
+			return Variant(Rect2());
+		} break;
+		case Variant::Type::RECT2I: {
+			return Variant(Rect2i());
+		} break;
+		case Variant::Type::VECTOR3: {
+			return Variant(Vector3());
+		} break;
+		case Variant::Type::VECTOR3I: {
+			return Variant(Vector3i());
+		} break;
+		case Variant::Type::TRANSFORM2D: {
+			return Variant(Transform2D());
+		} break;
+		case Variant::Type::VECTOR4: {
+			return Variant(Vector4());
+		} break;
+		case Variant::Type::VECTOR4I: {
+			return Variant(Vector4i());
+		} break;
+		case Variant::Type::PLANE: {
+			return Variant(Plane());
+		} break;
+		case Variant::Type::QUATERNION: {
+			return Variant(Quaternion());
+		} break;
+		case Variant::Type::AABB: {
+			return Variant(AABB());
+		} break;
+		case Variant::Type::BASIS: {
+			return Variant(Basis());
+		} break;
+		case Variant::Type::TRANSFORM3D: {
+			return Variant(Transform3D());
+		} break;
+		case Variant::Type::PROJECTION: {
+			return Variant(Projection());
+		} break;
+		case Variant::Type::COLOR: {
+			return Variant(Color());
+		} break;
+		case Variant::Type::STRING_NAME: {
+			return Variant(StringName());
+		} break;
+		case Variant::Type::NODE_PATH: {
+			return Variant(NodePath());
+		} break;
+		case Variant::Type::RID: {
+			return Variant(RID());
+		} break;
+		case Variant::Type::OBJECT: {
+			return Variant();
+		} break;
+		case Variant::Type::CALLABLE: {
+			return Variant();
+		} break;
+		case Variant::Type::SIGNAL: {
+			return Variant();
+		} break;
+		case Variant::Type::DICTIONARY: {
+			return Variant(Dictionary());
+		} break;
+		case Variant::Type::ARRAY: {
+			return Variant(Array());
+		} break;
+		case Variant::Type::PACKED_BYTE_ARRAY: {
+			return Variant(PackedByteArray());
+		} break;
+		case Variant::Type::PACKED_INT32_ARRAY: {
+			return Variant(PackedInt32Array());
+		} break;
+		case Variant::Type::PACKED_INT64_ARRAY: {
+			return Variant(PackedInt64Array());
+		} break;
+		case Variant::Type::PACKED_FLOAT32_ARRAY: {
+			return Variant(PackedFloat32Array());
+		} break;
+		case Variant::Type::PACKED_FLOAT64_ARRAY: {
+			return Variant(PackedFloat64Array());
+		} break;
+		case Variant::Type::PACKED_STRING_ARRAY: {
+			return Variant(PackedStringArray());
+		} break;
+		case Variant::Type::PACKED_VECTOR2_ARRAY: {
+			return Variant(PackedVector2Array());
+		} break;
+		case Variant::Type::PACKED_VECTOR3_ARRAY: {
+			return Variant(PackedVector3Array());
+		} break;
+		case Variant::Type::PACKED_COLOR_ARRAY: {
+			return Variant(PackedColorArray());
+		} break;
+		default: {
+			return Variant();
+		}
+	}
+}
+
 #ifdef TOOLS_ENABLED
 
 void SHOW_DOC(const String &p_topic) {
diff --git a/util/limbo_compat.h b/util/limbo_compat.h
index a382f01..762aeaf 100644
--- a/util/limbo_compat.h
+++ b/util/limbo_compat.h
@@ -218,6 +218,8 @@ inline void VARIANT_DELETE_IF_OBJECT(Variant m_variant) {
 	}
 }
 
+Variant VARIANT_DEFAULT(Variant::Type p_type);
+
 #define PROJECT_CONFIG_FILE() GET_PROJECT_SETTINGS_DIR().path_join("limbo_ai.cfg")
 #define IS_RESOURCE_FILE(m_path) (m_path.begins_with("res://") && m_path.find("::") == -1)
 #define RESOURCE_TYPE_HINT(m_type) vformat("%s/%s:%s", Variant::OBJECT, PROPERTY_HINT_RESOURCE_TYPE, m_type)