diff --git a/__init__.py b/__init__.py
index 0d04432..95aa1ed 100644
--- a/__init__.py
+++ b/__init__.py
@@ -4,7 +4,11 @@
 
 from .nodes import *
 
-NODE_CLASS_MAPPINGS = {}
-NODE_DISPLAY_NAME_MAPPINGS = {}
+NODE_CLASS_MAPPINGS = {
+	"BestResolutionSimple": BestResolutionSimple,
+}
+NODE_DISPLAY_NAME_MAPPINGS = {
+	"BestResolutionSimple": "Best-Res (simple)",
+}
 
 __all__ = ["NODE_CLASS_MAPPINGS", "NODE_DISPLAY_NAME_MAPPINGS"]
diff --git a/node_types.py b/node_types.py
new file mode 100644
index 0000000..d8a5765
--- /dev/null
+++ b/node_types.py
@@ -0,0 +1,34 @@
+# encoding: utf-8
+"""
+"""
+
+import typing as _t
+
+import sys as _sys
+
+
+def number_type_dict(default: int = 512, min: int = 1, max: int = _sys.maxsize, step: int = 1) -> _t.Dict[str, int]:
+	"""Prepare type-dict for an input int/float parameter."""
+
+	# sys.maxsize is Py3's closest equivalent to 'sys.maxint' from Py2
+	return {
+		"default": default,
+		"min": min,
+		"max": max,
+		"step": step
+	}
+
+
+def number_to_int(value: _t.Union[int, float], min: int = 1) -> int:
+	if not isinstance(value, int):
+		if isinstance(value, float):
+			sign = -1 if value < 0.0 else 1
+			value = int(value * sign + 0.5) * sign
+		else:
+			value = int(value)
+	return max(value, min)
+
+
+type_dict_step_init = number_type_dict(48)
+type_dict_step_upscale1 = number_type_dict(128)
+type_dict_res = number_type_dict(512)
diff --git a/nodes.py b/nodes.py
index 03ef0e8..2240a5a 100644
--- a/nodes.py
+++ b/nodes.py
@@ -3,3 +3,66 @@
 """
 
 import typing as _t
+
+from frozendict import deepfreeze
+
+from comfy.comfy_types.node_typing import IO as _IO
+
+from .node_types import *
+
+
+def _round_abs(abs_value: _t.Union[int, float], step: int):
+	"""
+	Assuming both args are positive and ``step`` is already an int, detect the closest positive (non-zero) value
+	which is also divisible by step.
+	"""
+	n_steps = int(float(number_to_int(abs_value)) / step + 0.5)
+	n_steps = max(n_steps, 1)
+	return step * n_steps, n_steps
+
+
+# Tiny optimization by reusing the same immutable dict:
+_input_types_simple = deepfreeze({
+	"required":  {
+		"width": (_IO.INT, dict(type_dict_res, **{'tooltip': "Approximate width"})),
+		"height": (_IO.INT, dict(type_dict_res, **{'tooltip': "Approximate height"})),
+		"step": (_IO.INT, dict(type_dict_step_init, **{'tooltip': "Resolution must be divisible by this value"})),
+	},
+	# "hidden": {},
+	# "optional": {},
+})
+
+
+class BestResolutionSimple:
+	NODE_NAME = "BestResolutionSimple"
+	CATEGORY = "utils/resolution"
+
+	# OUTPUT_NODE = True  # TODO
+
+	FUNCTION = "main"
+	RETURN_TYPES = (_IO.INT, _IO.INT)
+	RETURN_NAMES = ("width", "height")
+
+	@classmethod
+	def INPUT_TYPES(cls):
+		return _input_types_simple
+
+	def main(self, width: int, height: int, step: int):
+		step = number_to_int(step)
+
+		width, n_steps_x = _round_abs(width, step)
+		height, n_steps_y = _round_abs(height, step)
+
+		width = n_steps_x * step
+		height = n_steps_y * step
+
+		text = f"{width} x {height}\n{n_steps_x} * {step} x {n_steps_y} * {step}"
+		print(f"text: {text}")
+
+		# The following return format is snatched from built-in PreviewAny
+		# and easy_nodes.show_text from (https://github.com/andrewharp/ComfyUI-EasyNodes);
+		# doesn't seem to be documented anywhere 🤷🏻‍♂️
+		return {
+			# "ui": {"text": [text]},  # TODO: for some reason, it isn't displayed
+			"result": (width, height)
+		}
diff --git a/pyproject.toml b/pyproject.toml
index dd0211e..c500b1c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ authors = [
 ]
 license = {file = "LICENSE.md"}
 readme = "README.md"
-dependencies = []
+dependencies = ["frozendict"]
 
 [project.urls]
 Repository = "https://github.com/Lex-DRL/ComfyUI-BestResolution"
@@ -15,5 +15,5 @@ Repository = "https://github.com/Lex-DRL/ComfyUI-BestResolution"
 
 [tool.comfy]
 PublisherId = "lex-drl"
-DisplayName = "ComfyUI-BestResolution"
+DisplayName = "Best Resolution"
 Icon = ""
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..302328f
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+frozendict