diff --git a/core_old/__init__.py b/core_old/__init__.py
deleted file mode 100644
index c097037..0000000
--- a/core_old/__init__.py
+++ /dev/null
@@ -1,6 +0,0 @@
-from .logger import *
-from .keys import *
-from .types import *
-from .config import *
-from .common import *
-from .version import *
diff --git a/core_old/common.py b/core_old/common.py
deleted file mode 100644
index a3d0252..0000000
--- a/core_old/common.py
+++ /dev/null
@@ -1,107 +0,0 @@
-import os
-import json
-import torch
-from deepdiff import DeepDiff
-from ..core_old import CONFIG, logger
-
-
-# just a helper function to set the widget values (or clear them)
-def setWidgetValues(value=None, unique_id=None, extra_pnginfo=None) -> None:
-    if unique_id and extra_pnginfo:
-        workflow = extra_pnginfo["workflow"]
-        node = next((x for x in workflow["nodes"] if str(x["id"]) == unique_id), None)
-
-        if node:
-            node["widgets_values"] = value
-
-    return None
-
-
-# find difference between two jsons
-def findJsonStrDiff(json1, json2):
-    msgError = "Could not compare jsons"
-    returnJson = {"error": msgError}
-    try:
-        # TODO review this
-        # dict1 = json.loads(json1)
-        # dict2 = json.loads(json2)
-
-        returnJson = findJsonsDiff(json1, json2)
-
-        returnJson = json.dumps(returnJson, indent=CONFIG["indent"])
-    except Exception as e:
-        logger.warn(f"{msgError}: {e}")
-
-    return returnJson
-
-
-def findJsonsDiff(json1, json2):
-    msgError = "Could not compare jsons"
-    returnJson = {"error": msgError}
-
-    try:
-        diff = DeepDiff(json1, json2, ignore_order=True, verbose_level=2)
-
-        returnJson = {k: v for k, v in diff.items() if
-                   k in ('dictionary_item_added', 'dictionary_item_removed', 'values_changed')}
-
-        # just for print "values_changed" at first
-        returnJson = dict(reversed(returnJson.items()))
-
-    except Exception as e:
-        logger.warn(f"{msgError}: {e}")
-
-    return returnJson
-
-
-# powered by:
-# https://github.com/WASasquatch/was-node-suite-comfyui/blob/main/WAS_Node_Suite.py
-# class: WAS_Samples_Passthrough_Stat_System
-def get_system_stats():
-    import psutil
-
-    # RAM
-    ram = psutil.virtual_memory()
-    ram_used = ram.used / (1024 ** 3)
-    ram_total = ram.total / (1024 ** 3)
-    ram_stats = f"Used RAM: {ram_used:.2f} GB / Total RAM: {ram_total:.2f} GB"
-
-    # VRAM (with PyTorch)
-    device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
-    vram_used = torch.cuda.memory_allocated(device) / (1024 ** 3)
-    vram_total = torch.cuda.get_device_properties(device).total_memory / (1024 ** 3)
-    vram_stats = f"Used VRAM: {vram_used:.2f} GB / Total VRAM: {vram_total:.2f} GB"
-
-    # Hard Drive Space
-    hard_drive = psutil.disk_usage("/")
-    used_space = hard_drive.used / (1024 ** 3)
-    total_space = hard_drive.total / (1024 ** 3)
-    hard_drive_stats = f"Used Space: {used_space:.2f} GB / Total Space: {total_space:.2f} GB"
-
-    return [ram_stats, vram_stats, hard_drive_stats]
-
-
-# return x and y resolution of an image (torch tensor)
-def getResolutionByTensor(image=None) -> dict:
-    res = {"x": 0, "y": 0}
-
-    if image is not None:
-        img = image.movedim(-1, 1)
-
-        res["x"] = img.shape[3]
-        res["y"] = img.shape[2]
-
-    return res
-
-
-# by https://stackoverflow.com/questions/6080477/how-to-get-the-size-of-tar-gz-in-mb-file-in-python
-def get_size(path):
-    size = os.path.getsize(path)
-    if size < 1024:
-        return f"{size} bytes"
-    elif size < pow(1024, 2):
-        return f"{round(size / 1024, 2)} KB"
-    elif size < pow(1024, 3):
-        return f"{round(size / (pow(1024, 2)), 2)} MB"
-    elif size < pow(1024, 4):
-        return f"{round(size / (pow(1024, 3)), 2)} GB"
diff --git a/core_old/config.py b/core_old/config.py
deleted file mode 100644
index 13b2e71..0000000
--- a/core_old/config.py
+++ /dev/null
@@ -1,7 +0,0 @@
-import os
-import logging
-
-CONFIG = {
-    "loglevel": int(os.environ.get("CRYSTOOLS_LOGLEVEL", logging.INFO)),
-    "indent": int(os.environ.get("CRYSTOOLS_INDENT", 2))
-}
diff --git a/core_old/keys.py b/core_old/keys.py
deleted file mode 100644
index 68ac0bc..0000000
--- a/core_old/keys.py
+++ /dev/null
@@ -1,29 +0,0 @@
-from enum import Enum
-
-
-class TEXTS(Enum):
-    CUSTOM_NODE_NAME = "Crystools"
-    LOGGER_PREFIX = "Crystools"
-    CONCAT = "concatenated"
-    INACTIVE_MSG = "inactive"
-    INVALID_METADATA_MSG = "Invalid metadata raw"
-    FILE_NOT_FOUND = "File not found!"
-
-
-class CATEGORY(Enum):
-    TESTING = "_for_testing"
-    MAIN = "crystools 🪛"
-    PRIMITIVE = "/Primitive"
-    DEBUGGER = "/Debugger"
-    LIST = "/List"
-    SWITCH = "/Switch"
-    PIPE = "/Pipe"
-    IMAGE = "/Image"
-    UTILS = "/Utils"
-    METADATA = "/Metadata"
-
-
-# remember, all keys should be in lowercase!
-class KEYS(Enum):
-    LIST = "list_string"
-    PREFIX = "prefix"
diff --git a/core_old/logger.py b/core_old/logger.py
deleted file mode 100644
index 4c21af5..0000000
--- a/core_old/logger.py
+++ /dev/null
@@ -1,39 +0,0 @@
-# by https://github.com/Kosinkadink/ComfyUI-Advanced-ControlNet/blob/main/control/logger.py
-import sys
-import copy
-import logging
-from .keys import TEXTS
-from .config import CONFIG
-
-
-class ColoredFormatter(logging.Formatter):
-    COLORS = {
-        "DEBUG": "\033[0;36m",  # CYAN
-        "INFO": "\033[0;32m",  # GREEN
-        "WARNING": "\033[0;33m",  # YELLOW
-        "ERROR": "\033[0;31m",  # RED
-        "CRITICAL": "\033[0;37;41m",  # WHITE ON RED
-        "RESET": "\033[0m",  # RESET COLOR
-    }
-
-    def format(self, record):
-        colored_record = copy.copy(record)
-        levelname = colored_record.levelname
-        seq = self.COLORS.get(levelname, self.COLORS["RESET"])
-        colored_record.levelname = f"{seq}{levelname}{self.COLORS['RESET']}"
-        return super().format(colored_record)
-
-
-# Create a new logger
-logger = logging.getLogger(TEXTS.LOGGER_PREFIX.value)
-logger.propagate = False
-
-# Add handler if we don't have one.
-if not logger.handlers:
-    handler = logging.StreamHandler(sys.stdout)
-    handler.setFormatter(ColoredFormatter("[%(name)s %(levelname)s] %(message)s"))
-    logger.addHandler(handler)
-
-# Configure logger
-loglevel = CONFIG["loglevel"]
-logger.setLevel(loglevel)
diff --git a/core_old/types.py b/core_old/types.py
deleted file mode 100644
index 499ae93..0000000
--- a/core_old/types.py
+++ /dev/null
@@ -1,36 +0,0 @@
-import sys
-
-FLOAT = ("FLOAT", {"default": 1,
-                   "min": -sys.float_info.max,
-                   "max": sys.float_info.max,
-                   "step": 0.01})
-
-BOOLEAN = ("BOOLEAN", {"default": True})
-BOOLEAN_FALSE = ("BOOLEAN", {"default": False})
-
-INT = ("INT", {"default": 1,
-               "min": -sys.maxsize,
-               "max": sys.maxsize,
-               "step": 1})
-
-STRING = ("STRING", {"default": ""})
-
-STRING_ML = ("STRING", {"multiline": True, "default": ""})
-
-STRING_WIDGET = ("STRING", {"forceInput": True})
-
-JSON_WIDGET = ("JSON", {"forceInput": True})
-
-METADATA_RAW = ("METADATA_RAW", {"forceInput": True})
-
-class AnyType(str):
-    """A special class that is always equal in not equal comparisons. Credit to pythongosssss"""
-
-    def __eq__(self, _) -> bool:
-        return True
-
-    def __ne__(self, __value: object) -> bool:
-        return False
-
-
-any = AnyType("*")
diff --git a/core_old/version.py b/core_old/version.py
deleted file mode 100644
index af16f8d..0000000
--- a/core_old/version.py
+++ /dev/null
@@ -1 +0,0 @@
-version = "1.15.0"