diff --git a/.github/matchers/pylint.json b/.github/matchers/pylint.json
deleted file mode 100644
index e3a6bd16..00000000
--- a/.github/matchers/pylint.json
+++ /dev/null
@@ -1,32 +0,0 @@
-{
-  "problemMatcher": [
-    {
-      "severity": "warning",
-      "pattern": [
-        {
-          "regexp": "^([^:]+):(\\d+):(\\d+): ([A-DF-Z]\\d+): \\033\\[[\\d;]+m([^\\033]+).*$",
-          "file": 1,
-          "line": 2,
-          "column": 3,
-          "code": 4,
-          "message": 5
-        }
-      ],
-      "owner": "pylint-warning"
-    },
-    {
-      "severity": "error",
-      "pattern": [
-        {
-          "regexp": "^([^:]+):(\\d+):(\\d+): (E\\d+): \\033\\[[\\d;]+m([^\\033]+).*$",
-          "file": 1,
-          "line": 2,
-          "column": 3,
-          "code": 4,
-          "message": 5
-        }
-      ],
-      "owner": "pylint-error"
-    }
-  ]
-}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ecf53387..95f4ef22 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,18 +20,17 @@ jobs:
     - uses: actions/setup-python@v5
       with:
         python-version: "3.x"
+    - uses: astral-sh/setup-uv@v3
     - uses: pre-commit/action@v3.0.1
       with:
         extra_args: --all-files --hook-stage manual
     - name: PyLint
-      run: |
-        echo "::add-matcher::$GITHUB_WORKSPACE/.github/matchers/pylint.json"
-        pipx run nox -s pylint
+      run: uvx nox -s pylint -- --output-format=github
 
 
   checks:
+    name: Check ${{ matrix.os }} Python ${{ matrix.python-version }}
     runs-on: ${{ matrix.os }}
-
     strategy:
       fail-fast: false
       matrix:
@@ -41,7 +40,6 @@ jobs:
           - {os: macos-13, python-version: '3.9'}
           - {os: windows-latest, python-version: '3.8'}
           - {os: windows-latest, python-version: '3.11'}
-    name: Check ${{ matrix.os }} Python ${{ matrix.python-version }}
 
     steps:
     - uses: actions/checkout@v4
@@ -51,8 +49,10 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
 
+    - uses: astral-sh/setup-uv@v3
+
     - name: Install package
-      run: python -m pip install -e .[test]
+      run: uv pip install --system -e .[test]
 
     - name: Pytest
       if: runner.os == 'Linux'
@@ -82,17 +82,16 @@ jobs:
       with:
         python-version: "3.x"
 
-    - name: Install package
-      run: python -m pip install -e .[test]
-
-    - name: Install notebook requirements
-      run: python -m pip install nbconvert jupyter_client ipykernel
+    - uses: astral-sh/setup-uv@v3
 
     - name: Install dot
       run: sudo apt-get install graphviz
 
-    - name: Install pydot
-      run: python -m pip install pydot
+    - name: Install package
+      run: uv pip install --system -e .[test]
+
+    - name: Install notebook requirements
+      run: uv pip install --system nbconvert jupyter_client ipykernel pydot
 
     - name: Run the notebooks inplace
       run: jupyter nbconvert --execute --inplace notebooks/DecayLanguageDemo.ipynb notebooks/ExampleDecFileParsingWithLark.ipynb
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index fc0b0b68..a7b92110 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -23,16 +23,14 @@ repos:
   hooks:
     - id: ruff
       args: ["--fix", "--show-fixes"]
-      types_or: [python, pyi, jupyter]
     - id: ruff-format
-      types_or: [python, pyi, jupyter]
 
 - repo: https://github.com/pre-commit/mirrors-mypy
   rev: v1.11.2
   hooks:
   - id: mypy
     files: '^src/decaylanguage/(decay|dec|utils)/'
-    additional_dependencies: [attrs, particle, importlib_resources, numpy>=1.26]
+    additional_dependencies: [attrs, particle, importlib_resources, numpy]
 
 - repo: https://github.com/codespell-project/codespell
   rev: v2.3.0
@@ -55,10 +53,3 @@ repos:
   - id: rst-backticks
   - id: rst-directive-colons
   - id: rst-inline-touching-normal
-
-- repo: https://github.com/hadialqattan/pycln
-  rev: "v2.4.0"
-  hooks:
-    - id: pycln
-      args: [--all]
-      stages: [manual]
diff --git a/noxfile.py b/noxfile.py
index d1e23120..c3215771 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -6,7 +6,10 @@
 
 nox.options.sessions = ["lint", "pylint", "tests"]
 
-PYTHON_VERSIONS = ["3.7", "3.8", "3.9", "3.10", "3.11"]
+PYTHON_VERSIONS = ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+
+nox.needs_version = ">=2024.4.15"
+nox.options.default_venv_backend = "uv|virtualenv"
 
 
 @nox.session
@@ -21,14 +24,14 @@ def pylint(session: nox.Session) -> None:
     Run pylint.
     """
 
-    session.install("pylint~=2.15.0")
-    session.install("-e", ".[dev]")
+    session.install("pylint")
+    session.install("-e.[dev]")
     session.run("pylint", "src", *session.posargs)
 
 
 @nox.session(python=PYTHON_VERSIONS)
 def tests(session):
-    session.install(".[test]")
+    session.install("-y.[test]")
     session.run("pytest", *session.posargs)
 
 
@@ -38,7 +41,6 @@ def build(session):
     Build an SDist and wheel.
     """
 
-    session.install("build", "twine")
     session.install("build", "twine", "check-wheel-contents")
     session.run("python", "-m", "build")
     session.run("twine", "check", "--strict", "dist/*")
diff --git a/pyproject.toml b/pyproject.toml
index 9a6786aa..21c6e5bc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -135,6 +135,7 @@ messages_control.disable = [
     "too-many-public-methods",
     "too-many-return-statements",
     "too-many-statements",
+    "too-many-positional-arguments",
     "wrong-import-position",
     "invalid-name",
     "consider-using-f-string",  # TODO
@@ -144,9 +145,6 @@ messages_control.disable = [
     "unused-argument",  # covered by Ruff
 ]
 
-[tool.ruff]
-src = ["src"]
-
 [tool.ruff.lint]
 extend-select = [
   "B",           # flake8-bugbear
diff --git a/src/decaylanguage/dec/dec.py b/src/decaylanguage/dec/dec.py
index 503d1b30..95ae9d11 100644
--- a/src/decaylanguage/dec/dec.py
+++ b/src/decaylanguage/dec/dec.py
@@ -311,13 +311,13 @@ def _load_grammar(
         with data.basepath.joinpath(filename).open() as f1:
             self._grammar = f1.read()
 
-        self._grammar_info = dict(
-            lark_file=filename,
-            parser=parser,
-            lexer=lexer,
-            edit_terminals=self._generate_edit_terminals_callback(),
+        self._grammar_info = {
+            "lark_file": filename,
+            "parser": parser,
+            "lexer": lexer,
+            "edit_terminals": self._generate_edit_terminals_callback(),
             **options,
-        )
+        }
 
     def _generate_edit_terminals_callback(self) -> Callable[[TerminalDef], None]:
         """