diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..f6c05b8
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,37 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2025 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+    -   id: trailing-whitespace
+    -   id: check-added-large-files
+    -   id: debug-statements
+- repo: https://github.com/astral-sh/ruff-pre-commit
+  rev: v0.12.5
+  hooks:
+    - id: ruff-format
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f9a336..477f976 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,8 @@
 
 ### 1.0.0-dev0
 
-* Breaking changes!
+* Breaking changes. There is now an additional .scene object, plus several
+  other collector objects. Look at the tests/readme for details.
 * Big refactor of structure - ensure that XML structure is followed in code
 * Implemented all MVR fields
 * Big refactor for export
diff --git a/README.md b/README.md
index 29d47bb..901eecb 100644
--- a/README.md
+++ b/README.md
@@ -143,30 +143,32 @@ project setup by running:
 uv sync
 ```
 
-### Typing
+### Format
 
-- We try to type the main library, at this point, the
-  `--no-strict-optional` is needed for mypy tests to pass:
+- To format, use [ruff](https://docs.astral.sh/ruff/)
 
 ```bash
-mypy pymvr/*py  --pretty  --no-strict-optional
+uv run ruff format pymvr/*
 ```
 
-### Format
+### Pre-commit hooks
+
+- You can use the pre-commit hooks
 
-- To format, use [black](https://github.com/psf/black) or
-  [ruff](https://docs.astral.sh/ruff/)
+```bash
+uv run pre-commit install
+```
 
 ### Testing
 
 - to test, use pytest
 
 ```bash
-pytest
+uv run pytest
 ```
 
 - to test typing with mypy use:
 
 ```bash
-pytest --mypy -m mypy pymvr/*py
+uv run pytest --mypy -m mypy pymvr/*py
 ```
diff --git a/RELEASE.md b/RELEASE.md
index 97c5785..66355dd 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -5,6 +5,11 @@
 * push to master (via PR)
 * `git tag versionCode`
 * `git push origin versionCode`
+* License headers:
+* Make sure to install/update hawkeye
+* `cargo install hawkeye`
+* Update headers:
+* `hawkeye format`
 
 * generate wheel with pip wheel:
 
diff --git a/conftest.py b/conftest.py
index d2bd7d9..4a2340f 100644
--- a/conftest.py
+++ b/conftest.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2023 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 from pathlib import Path
 import pytest
 import pymvr
@@ -10,7 +34,9 @@
 @pytest.fixture(scope="function")
 def mvr_scene(request):
     file_name = request.param[0]
-    test_mvr_scene_path = Path(Path(__file__).parents[0], "tests", file_name)  # test file path is made from current directory, tests directory and a file name
+    test_mvr_scene_path = Path(
+        Path(__file__).parents[0], "tests", file_name
+    )  # test file path is made from current directory, tests directory and a file name
     mvr_scene = pymvr.GeneralSceneDescription(test_mvr_scene_path)
     yield mvr_scene
 
@@ -26,4 +52,6 @@ def pytest_configure(config):
 
 
 def pytest_addoption(parser):
-    parser.addoption("--file-path", action="store", default=None, help="Path to the input file")
+    parser.addoption(
+        "--file-path", action="store", default=None, help="Path to the input file"
+    )
diff --git a/licenserc.toml b/licenserc.toml
new file mode 100644
index 0000000..b9096ab
--- /dev/null
+++ b/licenserc.toml
@@ -0,0 +1,38 @@
+# The MIT License (MIT)
+#
+# Copyright (C) none
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+headerPath = "mit-header.txt"
+
+excludes = [
+    ".github/",
+]
+
+[git]
+attrs = 'auto'
+ignore = 'auto'
+
+[properties]
+inceptionYear = 2023
+projectName = "pymvr"
+
diff --git a/mit-header.txt b/mit-header.txt
new file mode 100644
index 0000000..6cc694f
--- /dev/null
+++ b/mit-header.txt
@@ -0,0 +1,23 @@
+The MIT License (MIT)
+
+Copyright (C) {{attrs.git_file_created_year}} {{ attrs.git_authors | join(", ") }}
+
+This file is part of {{props["projectName"]}}.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the “Software”), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/pymvr/__init__.py b/pymvr/__init__.py
index a181e1a..cb8ec3f 100644
--- a/pymvr/__init__.py
+++ b/pymvr/__init__.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2023 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 from typing import List, Union
 from xml.etree import ElementTree
 from xml.etree.ElementTree import Element
@@ -67,14 +91,20 @@ def __init__(self):
         self.provider_version: str = __version__
         self.files_list: List[str] = []
         self.xml_root = ElementTree.Element(
-            "GeneralSceneDescription", verMajor=self.version_major, verMinor=self.version_minor, provider=self.provider, provider_version=self.provider_version
+            "GeneralSceneDescription",
+            verMajor=self.version_major,
+            verMinor=self.version_minor,
+            provider=self.provider,
+            provider_version=self.provider_version,
         )
 
     def write_mvr(self, path=None):
         if path is not None:
             if sys.version_info >= (3, 9):
                 ElementTree.indent(self.xml_root, space="    ", level=0)
-            xmlstr = ElementTree.tostring(self.xml_root, encoding="unicode", xml_declaration=True)
+            xmlstr = ElementTree.tostring(
+                self.xml_root, encoding="unicode", xml_declaration=True
+            )
             with zipfile.ZipFile(path, "w", zipfile.ZIP_DEFLATED) as z:
                 z.writestr("GeneralSceneDescription.xml", xmlstr)
                 for file_path, file_name in self.files_list:
@@ -146,7 +176,9 @@ def _read_xml(self, xml_node: "Element"):
 
 class CustomCommands(ContainerNode):
     def _read_xml(self, xml_node: "Element"):
-        self.children = [CustomCommand(xml_node=i) for i in xml_node.findall("CustomCommand")]
+        self.children = [
+            CustomCommand(xml_node=i) for i in xml_node.findall("CustomCommand")
+        ]
 
 
 class Overwrites(ContainerNode):
@@ -414,7 +446,9 @@ def __init__(
         self.cast_shadow = cast_shadow
         self.addresses = addresses if addresses is not None else Addresses()
         self.alignments = alignments if alignments is not None else Alignments()
-        self.custom_commands = custom_commands if custom_commands is not None else CustomCommands()
+        self.custom_commands = (
+            custom_commands if custom_commands is not None else CustomCommands()
+        )
         self.overwrites = overwrites if overwrites is not None else Overwrites()
         self.connections = connections if connections is not None else Connections()
         self.child_list = child_list
@@ -429,7 +463,9 @@ def _read_xml(self, xml_node: "Element"):
         if _gdtf_spec is not None:
             self.gdtf_spec = _gdtf_spec.text
             if self.gdtf_spec is not None:
-                self.gdtf_spec = self.gdtf_spec.encode("utf-8").decode("cp437")  # IBM PC encoding
+                self.gdtf_spec = self.gdtf_spec.encode("utf-8").decode(
+                    "cp437"
+                )  # IBM PC encoding
             if self.gdtf_spec is not None and len(self.gdtf_spec) > 5:
                 if self.gdtf_spec[-5:].lower() != ".gdtf":
                     self.gdtf_spec = f"{self.gdtf_spec}.gdtf"
@@ -466,7 +502,9 @@ def _read_xml(self, xml_node: "Element"):
         if xml_node.find("Connections"):
             self.connections = Connections(xml_node=xml_node.find("Connections"))
         if xml_node.find("CustomCommands") is not None:
-            self.custom_commands = CustomCommands(xml_node=xml_node.find("CustomCommands"))
+            self.custom_commands = CustomCommands(
+                xml_node=xml_node.find("CustomCommands")
+            )
         if xml_node.find("Overwrites"):
             self.overwrites = Overwrites(xml_node=xml_node.find("Overwrites"))
         if xml_node.find("Classing") is not None:
@@ -504,11 +542,15 @@ def populate_xml(self, element: Element):
             self.connections.to_xml(element)
 
         ElementTree.SubElement(element, "FixtureID").text = str(self.fixture_id) or "0"
-        ElementTree.SubElement(element, "FixtureIDNumeric").text = str(self.fixture_id_numeric)
+        ElementTree.SubElement(element, "FixtureIDNumeric").text = str(
+            self.fixture_id_numeric
+        )
         if self.unit_number is not None:
             ElementTree.SubElement(element, "UnitNumber").text = str(self.unit_number)
         if self.custom_id_type is not None:
-            ElementTree.SubElement(element, "CustomIdType").text = str(self.custom_id_type)
+            ElementTree.SubElement(element, "CustomIdType").text = str(
+                self.custom_id_type
+            )
         if self.custom_id is not None:
             ElementTree.SubElement(element, "CustomId").text = str(self.custom_id)
 
@@ -565,7 +607,9 @@ def __str__(self):
 
     def to_xml(self):
         attributes = {"name": self.name, "uuid": self.uuid}
-        return ElementTree.Element(type(self).__name__, provider=self.provider, ver=self.ver)
+        return ElementTree.Element(
+            type(self).__name__, provider=self.provider, ver=self.ver
+        )
 
 
 class AUXData(BaseNode):
@@ -588,7 +632,9 @@ def _read_xml(self, xml_node: "Element"):
         self.classes = [Class(xml_node=i) for i in xml_node.findall("Class")]
         self.symdefs = [Symdef(xml_node=i) for i in xml_node.findall("Symdef")]
         self.positions = [Position(xml_node=i) for i in xml_node.findall("Position")]
-        self.mapping_definitions = [MappingDefinition(xml_node=i) for i in xml_node.findall("MappingDefinition")]
+        self.mapping_definitions = [
+            MappingDefinition(xml_node=i) for i in xml_node.findall("MappingDefinition")
+        ]
 
     def to_xml(self, parent: Element):
         element = ElementTree.SubElement(parent, type(self).__name__)
@@ -620,7 +666,9 @@ def __init__(
         self.size_x = size_x
         self.size_y = size_y
         self.source = source
-        self.scale_handling = scale_handling if scale_handling is not None else ScaleHandeling()
+        self.scale_handling = (
+            scale_handling if scale_handling is not None else ScaleHandeling()
+        )
         super().__init__(*args, **kwargs)
 
     def _read_xml(self, xml_node: "Element"):
@@ -637,7 +685,9 @@ def _read_xml(self, xml_node: "Element"):
             self.scale_handling = ScaleHandeling(xml_node=scale_handling_node)
 
     def to_xml(self):
-        element = ElementTree.Element(type(self).__name__, name=self.name, uuid=self.uuid)
+        element = ElementTree.Element(
+            type(self).__name__, name=self.name, uuid=self.uuid
+        )
         ElementTree.SubElement(element, "SizeX").text = str(self.size_x)
         ElementTree.SubElement(element, "SizeY").text = str(self.size_y)
         if self.scale_handling:
@@ -784,7 +834,9 @@ def __str__(self):
         return f"{self.name}"
 
     def to_xml(self):
-        element = ElementTree.Element(type(self).__name__, name=self.name, uuid=self.uuid)
+        element = ElementTree.Element(
+            type(self).__name__, name=self.name, uuid=self.uuid
+        )
         Matrix(self.matrix.matrix).to_xml(parent=element)
         if self.classing:
             ElementTree.SubElement(element, "Classing").text = self.classing
@@ -850,18 +902,26 @@ def __init__(
         super().__init__(*args, **kwargs)
 
     def _read_xml(self, xml_node: "Element"):
-        self.scene_objects = [SceneObject(xml_node=i) for i in xml_node.findall("SceneObject")]
+        self.scene_objects = [
+            SceneObject(xml_node=i) for i in xml_node.findall("SceneObject")
+        ]
 
-        self.group_objects = [GroupObject(xml_node=i) for i in xml_node.findall("GroupObject")]
+        self.group_objects = [
+            GroupObject(xml_node=i) for i in xml_node.findall("GroupObject")
+        ]
 
-        self.focus_points = [FocusPoint(xml_node=i) for i in xml_node.findall("FocusPoint")]
+        self.focus_points = [
+            FocusPoint(xml_node=i) for i in xml_node.findall("FocusPoint")
+        ]
 
         self.fixtures = [Fixture(xml_node=i) for i in xml_node.findall("Fixture")]
 
         self.supports = [Support(xml_node=i) for i in xml_node.findall("Support")]
         self.trusses = [Truss(xml_node=i) for i in xml_node.findall("Truss")]
 
-        self.video_screens = [VideoScreen(xml_node=i) for i in xml_node.findall("VideoScreen")]
+        self.video_screens = [
+            VideoScreen(xml_node=i) for i in xml_node.findall("VideoScreen")
+        ]
 
         self.projectors = [Projector(xml_node=i) for i in xml_node.findall("Projector")]
 
@@ -914,7 +974,9 @@ def _read_xml(self, xml_node: "Element"):
             self.matrix = Matrix(str_repr=xml_node.find("Matrix").text)
 
     def to_xml(self):
-        element = ElementTree.Element(type(self).__name__, name=self.name, uuid=self.uuid)
+        element = ElementTree.Element(
+            type(self).__name__, name=self.name, uuid=self.uuid
+        )
         Matrix(self.matrix.matrix).to_xml(parent=element)
         if self.child_list:
             self.child_list.to_xml(parent=element)
@@ -965,7 +1027,9 @@ def to_xml(self, addresses):
         universes = 512 * (self.universe - 1)
 
         raw_address = self.address + universes
-        address = ElementTree.SubElement(addresses, "Address", attrib={"break": str(self.dmx_break)})
+        address = ElementTree.SubElement(
+            addresses, "Address", attrib={"break": str(self.dmx_break)}
+        )
         address.text = str(raw_address)
 
 
@@ -989,7 +1053,9 @@ def __str__(self):
         return f"{self.name}"
 
     def to_xml(self):
-        element = ElementTree.Element(type(self).__name__, name=self.name, uuid=self.uuid)
+        element = ElementTree.Element(
+            type(self).__name__, name=self.name, uuid=self.uuid
+        )
         return element
 
 
@@ -1013,7 +1079,9 @@ def __str__(self):
         return f"{self.name}"
 
     def to_xml(self):
-        element = ElementTree.Element(type(self).__name__, name=self.name, uuid=self.uuid)
+        element = ElementTree.Element(
+            type(self).__name__, name=self.name, uuid=self.uuid
+        )
         return element
 
 
@@ -1040,7 +1108,9 @@ def _read_xml(self, xml_node: "Element"):
         child_list = xml_node.find("ChildList")
         if child_list is not None:
             self.symbol = [Symbol(xml_node=i) for i in child_list.findall("Symbol")]
-            _geometry3d = [Geometry3D(xml_node=i) for i in child_list.findall("Geometry3D")]
+            _geometry3d = [
+                Geometry3D(xml_node=i) for i in child_list.findall("Geometry3D")
+            ]
         else:
             self.symbol = []
             _geometry3d = []
@@ -1049,7 +1119,9 @@ def _read_xml(self, xml_node: "Element"):
         self.geometry3d = list(set(_geometry3d))
 
     def to_xml(self):
-        element = ElementTree.Element(type(self).__name__, name=self.name, uuid=self.uuid)
+        element = ElementTree.Element(
+            type(self).__name__, name=self.name, uuid=self.uuid
+        )
         for geo in self.geometry3d:
             element.append(geo.to_xml())
         for sym in self.symbol:
@@ -1070,7 +1142,9 @@ def __init__(
         super().__init__(*args, **kwargs)
 
     def _read_xml(self, xml_node: "Element"):
-        self.file_name = xml_node.attrib.get("fileName", "").encode("utf-8").decode("cp437")
+        self.file_name = (
+            xml_node.attrib.get("fileName", "").encode("utf-8").decode("cp437")
+        )
         if xml_node.find("Matrix") is not None:
             self.matrix = Matrix(str_repr=xml_node.find("Matrix").text)
 
@@ -1119,7 +1193,9 @@ def __str__(self):
         return f"{self.uuid}"
 
     def to_xml(self):
-        element = ElementTree.Element(type(self).__name__, uuid=self.uuid, symdef=self.symdef)
+        element = ElementTree.Element(
+            type(self).__name__, uuid=self.uuid, symdef=self.symdef
+        )
         Matrix(self.matrix.matrix).to_xml(parent=element)
         return element
 
@@ -1138,7 +1214,9 @@ def __init__(
 
     def _read_xml(self, xml_node: "Element"):
         self.symbol = [Symbol(xml_node=i) for i in xml_node.findall("Symbol")]
-        self.geometry3d = [Geometry3D(xml_node=i) for i in xml_node.findall("Geometry3D")]
+        self.geometry3d = [
+            Geometry3D(xml_node=i) for i in xml_node.findall("Geometry3D")
+        ]
 
     def to_xml(self, parent: Element):
         element = ElementTree.SubElement(parent, type(self).__name__)
@@ -1184,7 +1262,9 @@ def __str__(self):
         return f"{self.name}"
 
     def to_xml(self):
-        element = ElementTree.Element(type(self).__name__, name=self.name, uuid=self.uuid)
+        element = ElementTree.Element(
+            type(self).__name__, name=self.name, uuid=self.uuid
+        )
         Matrix(self.matrix.matrix).to_xml(parent=element)
         if self.classing:
             ElementTree.SubElement(element, "Classing").text = self.classing
@@ -1599,7 +1679,9 @@ def __init__(
         **kwargs,
     ):
         self.source = source
-        self.scale_handling = scale_handling if scale_handling is not None else ScaleHandeling()
+        self.scale_handling = (
+            scale_handling if scale_handling is not None else ScaleHandeling()
+        )
         super().__init__(*args, **kwargs)
 
     def _read_xml(self, xml_node: "Element"):
@@ -1630,7 +1712,9 @@ def __init__(
         super().__init__(xml_node, *args, **kwargs)
 
     def _read_xml(self, xml_node: "Element"):
-        self.projections = [Projection(xml_node=i) for i in xml_node.findall("Projection")]
+        self.projections = [
+            Projection(xml_node=i) for i in xml_node.findall("Projection")
+        ]
 
     def to_xml(self, parent: Element):
         element = ElementTree.SubElement(parent, type(self).__name__)
diff --git a/pymvr/value.py b/pymvr/value.py
index cc59e68..0fc5001 100644
--- a/pymvr/value.py
+++ b/pymvr/value.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2023 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 from typing import List, Union
 from xml.etree import ElementTree
 
diff --git a/pyproject.toml b/pyproject.toml
index 386b839..569e9b3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2024 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 [build-system]
 requires = ["setuptools"]
 build-backend = "setuptools.build_meta"
@@ -30,6 +54,7 @@ version = {attr = "pymvr.__version__"}
 
 [dependency-groups]
 dev = [
+    "pre-commit>=3.5.0",
     "pytest>=8.3.4",
     "pytest-mypy>=0.10.3",
     "ruff>=0.9.3",
diff --git a/ruff.toml b/ruff.toml
deleted file mode 100644
index 7a3f6a3..0000000
--- a/ruff.toml
+++ /dev/null
@@ -1 +0,0 @@
-line-length = 160
diff --git a/tests/test_fixture_1_5.py b/tests/test_fixture_1_5.py
index 9af5ac6..ce9484b 100644
--- a/tests/test_fixture_1_5.py
+++ b/tests/test_fixture_1_5.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2023 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 import pytest
 
 
@@ -22,7 +46,9 @@ def process_mvr_child_list(child_list, mvr_scene):
 
 def process_mvr_fixture(fixture):
     assert fixture.gdtf_spec == "LED PAR 64 RGBW.gdtf"
-    assert fixture.addresses.address[0].universe == 1  # even though the uni is 0 in the file, 1 is by the spec
+    assert (
+        fixture.addresses.address[0].universe == 1
+    )  # even though the uni is 0 in the file, 1 is by the spec
     assert fixture.addresses.address[0].address == 1  # dtto
     assert fixture.gdtf_mode == "Default"
     assert fixture.matrix.matrix[3] == [5.0, 5.0, 5.0, 0]
diff --git a/tests/test_fixture_scene_object_1_5.py b/tests/test_fixture_scene_object_1_5.py
index 6f50b0b..e19877d 100644
--- a/tests/test_fixture_scene_object_1_5.py
+++ b/tests/test_fixture_scene_object_1_5.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2023 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 import pytest
 
 
diff --git a/tests/test_group_objects_1_4.py b/tests/test_group_objects_1_4.py
index 0e9ce00..2738420 100644
--- a/tests/test_group_objects_1_4.py
+++ b/tests/test_group_objects_1_4.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2023 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 import pytest
 
 
@@ -11,10 +35,19 @@ def test_version(mvr_scene):
 @pytest.mark.parametrize("mvr_scene", [("capture_demo_show.mvr",)], indirect=True)
 def test_auxdata(mvr_scene):
     """Check symdefs"""
-    assert mvr_scene.scene.aux_data.symdefs[0].uuid == "12fcdd5e-4194-56a0-96de-1c3c4edf1cd3"
+    assert (
+        mvr_scene.scene.aux_data.symdefs[0].uuid
+        == "12fcdd5e-4194-56a0-96de-1c3c4edf1cd3"
+    )
 
 
 @pytest.mark.parametrize("mvr_scene", [("capture_demo_show.mvr",)], indirect=True)
 def test_child_list(mvr_scene):
-    assert mvr_scene.scene.layers[1].child_list.fixtures[0].uuid == "2e149740-6a41-bc43-bd59-8968781b11b9"
-    assert mvr_scene.scene.layers[2].child_list.scene_objects[1].uuid == "d1d76649-35bd-9d49-baa4-abcb481fb2c8"
+    assert (
+        mvr_scene.scene.layers[1].child_list.fixtures[0].uuid
+        == "2e149740-6a41-bc43-bd59-8968781b11b9"
+    )
+    assert (
+        mvr_scene.scene.layers[2].child_list.scene_objects[1].uuid
+        == "d1d76649-35bd-9d49-baa4-abcb481fb2c8"
+    )
diff --git a/tests/test_mvr_01_write_ours.py b/tests/test_mvr_01_write_ours.py
index 4e55596..5ac0b5d 100644
--- a/tests/test_mvr_01_write_ours.py
+++ b/tests/test_mvr_01_write_ours.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2024 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 import pytest
 from pathlib import Path
 import pymvr
diff --git a/tests/test_mvr_02_read_ours.py b/tests/test_mvr_02_read_ours.py
index 4802030..bcc0ce7 100644
--- a/tests/test_mvr_02_read_ours.py
+++ b/tests/test_mvr_02_read_ours.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2024 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 import pytest
 
 
diff --git a/tests/test_mvr_03_write_ours_json.py b/tests/test_mvr_03_write_ours_json.py
index 19e454c..bbfa0d3 100644
--- a/tests/test_mvr_03_write_ours_json.py
+++ b/tests/test_mvr_03_write_ours_json.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2025 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 from pathlib import Path
 import pymvr
 
@@ -37,7 +61,12 @@ def test_write_from_json():
 
         for fixture_data in layer_data["fixtures"]:
             new_addresses = [
-                pymvr.Address(dmx_break=address["dmx_break"], address=address["address"], universe=address["universe"]) for address in fixture_data["addresses"]
+                pymvr.Address(
+                    dmx_break=address["dmx_break"],
+                    address=address["address"],
+                    universe=address["universe"],
+                )
+                for address in fixture_data["addresses"]
             ]
 
             new_fixture = pymvr.Fixture(
diff --git a/tests/test_mvr_04_read_ours_json.py b/tests/test_mvr_04_read_ours_json.py
index e66d5d9..4f07db9 100644
--- a/tests/test_mvr_04_read_ours_json.py
+++ b/tests/test_mvr_04_read_ours_json.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2025 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 import pytest
 
 
diff --git a/tests/test_mvr_05_example.py b/tests/test_mvr_05_example.py
index 0e9b432..e145d04 100644
--- a/tests/test_mvr_05_example.py
+++ b/tests/test_mvr_05_example.py
@@ -1,3 +1,27 @@
+# The MIT License (MIT)
+#
+# Copyright (C) 2025 vanous
+#
+# This file is part of pymvr.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 from pathlib import Path
 import pymvr
 
diff --git a/tests/test_with_files.py b/tests/test_with_files.py
index 1500183..0240486 100644
--- a/tests/test_with_files.py
+++ b/tests/test_with_files.py
@@ -1,20 +1,20 @@
-# MIT License
+# The MIT License (MIT)
 #
 # Copyright (C) 2025 vanous
 #
-# This file is part of pygdtf.
+# This file is part of pymvr.
 #
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the “Software”), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
 #
 # The above copyright notice and this permission notice shall be included in all
 # copies or substantial portions of the Software.
 #
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER