diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 0000000..607d783
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,16 @@
+name: Lint
+on: [push, pull_request]
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: astral-sh/setup-uv@v4
+        with:
+          version: "latest"
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.12"
+      - run: uv sync --group dev
+      - run: uv run ruff check .
+      - run: uv run mypy .
\ No newline at end of file
diff --git a/main.py b/main.py
deleted file mode 100644
index 4410167..0000000
--- a/main.py
+++ /dev/null
@@ -1,6 +0,0 @@
-def main():
-    print("Hello from scratchgpt!")
-
-
-if __name__ == "__main__":
-    main()
diff --git a/pyproject.toml b/pyproject.toml
index c1ebc7a..addec80 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,44 +22,51 @@ dependencies = [
 [dependency-groups]
 dev = [
     "bandit>=1.8.6",
-    "black>=25.1.0",
-    "isort>=6.0.1",
     "mypy>=1.17.1",
-    "pylint>=3.3.8",
     "pytest>=8.4.1",
+    "ruff>=0.1.0",
 ]
 
-[tool.isort]
-profile = "black"
-line_length = 120
-force_sort_within_sections = true
-sections = ["FUTURE", "STDLIB", "THIRDPARTY", "FIRSTPARTY", "LOCALFOLDER"]
-default_section = "THIRDPARTY"
-skip_glob = [".venv"]
-
-[tool.pylint."MESSAGES CONTROL"]
-disable = ["missing-module-docstring", "missing-class-docstring"]
-extension-pkg-whitelist = "pydantic"
-
-[tool.pylint.REPORTS]
-output-format = "parseable"
+[tool.pytest.ini_options]
+asyncio_mode = "auto"
 
-[tool.pylint.FORMAT]
-max-line-length = 120
+[tool.mypy]
+python_version = "3.12"
+warn_unused_configs = true
+files = ["scratchgpt/"]
+ignore_missing_imports = false
+check_untyped_defs = true
+explicit_package_bases = true
+warn_unreachable = true
+warn_redundant_casts = true
+strict = true
+exclude = [".venv"]
 
-[tool.pylint.DESIGN]
-max-args = 10
-max-attributes = 10
+[[tool.mypy.overrides]]
+module = ["ptflops"]
+ignore_missing_imports = true
 
-[tool.black]
+[tool.ruff]
 line-length = 120
-target-version = ['py312']
+target-version = "py312"
 
-[tool.pytest.ini_options]
-asyncio_mode = "auto"
+[tool.ruff.lint]
+select = [
+  "F",      # Pyflakes
+  "E",      # pycodestyle errors
+  "W",      # pycodestyle warnings
+  "I",      # isort
+  "N",      # pep8-naming
+  "UP",     # pyupgrade
+  "B",      # flake8-bugbear (catches common bugs)
+  "C4",     # flake8-comprehensions
+  "PIE",    # flake8-pie
+  "SIM",    # flake8-simplify
+]
+ignore = ["N812", "N806"]
 
-[tool.mypy]
-python_version = "3.12"
+[tool.ruff.lint.per-file-ignores]
+"__init__.py" = ["F401"]  # Allow unused imports in __init__.py
 
 [build-system]
 requires = ["hatchling"]
diff --git a/scratchgpt/dataloader.py b/scratchgpt/dataloader.py
index 3be6c60..ddc6036 100644
--- a/scratchgpt/dataloader.py
+++ b/scratchgpt/dataloader.py
@@ -1,5 +1,4 @@
 from abc import ABC, abstractmethod
-import os
 from pathlib import Path
 from typing import Literal, override
 
@@ -12,7 +11,7 @@
 
 class TextProvider(ABC):
     @abstractmethod
-    def get_text(self) -> Path:
+    def get_text(self) -> str:
         """This method fetches the text from the underlying storage"""
 
 
@@ -22,7 +21,7 @@ def __init__(self, file_path: Path) -> None:
             raise ValueError(f"File path {file_path} does not exist")
 
         self._data = ""
-        with open(file_path, "r") as f:
+        with open(file_path) as f:
             self._data = f.read()
 
     @override
@@ -40,12 +39,10 @@ def __init__(self, dir_path: Path) -> None:
 
         self._data = ""
         for file_path in dir_path.rglob("*"):  # Recursively find all files
+            print(f"Loading data from {file_path}")
             if file_path.is_file() and not file_path.name.startswith("."):
-                print(f"Loading data from {file_path.parent}")
-                with open(file_path, "r", encoding="utf-8") as f:
-                    self._data += f.read() + "\n"  # Concatenate with a
-                        # newline between files, could be the place to add
-                        # special tokens
+                with open(file_path, encoding="utf-8") as f:
+                    self._data += f.read() + "\n"
 
     @override
     def get_text(self) -> str:
diff --git a/scratchgpt/infer.py b/scratchgpt/infer.py
index 0642193..0a47878 100644
--- a/scratchgpt/infer.py
+++ b/scratchgpt/infer.py
@@ -8,7 +8,7 @@
 
 from scratchgpt.config import ScratchGPTConfig
 
-from .main import TransformerLanguageModel
+from .model.model import TransformerLanguageModel
 from .model_io import get_best_model_weights_path, get_tokenizer, load_model
 
 
diff --git a/scratchgpt/main.py b/scratchgpt/main.py
index 61c2002..b12ab2e 100644
--- a/scratchgpt/main.py
+++ b/scratchgpt/main.py
@@ -1,11 +1,11 @@
 import argparse
 import os
-from pathlib import Path
 import sys
+from pathlib import Path
 from typing import Literal
 
 import torch
-from pydantic_yaml import to_yaml_file, parse_yaml_file_as
+from pydantic_yaml import parse_yaml_file_as, to_yaml_file
 from rich.pretty import pprint as rpprint
 from torch.optim.adamw import AdamW
 from torch.optim.optimizer import Optimizer
@@ -227,4 +227,4 @@ def main() -> None:
 
 
 if __name__ == "__main__":
-    main()
\ No newline at end of file
+    main()
diff --git a/scratchgpt/metering.py b/scratchgpt/metering.py
index 514f92d..9fd3bdb 100644
--- a/scratchgpt/metering.py
+++ b/scratchgpt/metering.py
@@ -19,7 +19,7 @@ def value(self) -> tuple[float, float]:
 
 class AverageValueMeter(Meter):
     def __init__(self) -> None:
-        super(AverageValueMeter, self).__init__()
+        super().__init__()
         self.reset()
         self.val: float = 0.0
 
diff --git a/scratchgpt/model/model.py b/scratchgpt/model/model.py
index 535d159..2e1f7b0 100644
--- a/scratchgpt/model/model.py
+++ b/scratchgpt/model/model.py
@@ -1,8 +1,8 @@
 import math
 from typing import Any
 
-from ptflops import get_model_complexity_info
 import torch
+from ptflops import get_model_complexity_info
 from torch import Tensor, nn
 from torch.nn import functional as F
 
@@ -61,7 +61,7 @@ def __init__(
         self._dropout = nn.Dropout(dropout_rate)
 
     def forward(self, context: Tensor) -> Tensor:
-        out = torch.cat([head(context) for head in self._heads], dim=-1)
+        out: Tensor = torch.cat([head(context) for head in self._heads], dim=-1)
         out = self._proj(out)
         out = self._dropout(out)
         return out
@@ -202,12 +202,11 @@ def input_constructor(input_shape: Any) -> Tensor:
     flops, params = get_model_complexity_info(
         model,
         input_shape,
-        input_constructor=input_constructor,  # type: ignore
+        input_constructor=input_constructor,
         print_per_layer_stat=False,
         as_strings=False,
     )
 
     print(f" FLOPs per forward pass: {flops:,}")
-    print(f"GFLOPs per forward pass: {flops / 1e9:.2f}")
 
     print("=========================")
diff --git a/scratchgpt/model_io.py b/scratchgpt/model_io.py
index fbe69b7..9e15545 100644
--- a/scratchgpt/model_io.py
+++ b/scratchgpt/model_io.py
@@ -1,6 +1,6 @@
 import os
-from pathlib import Path
 import pickle
+from pathlib import Path
 
 import torch
 
@@ -10,7 +10,7 @@
 from .tokenizer.tiktoken import TiktokenWrapper
 
 
-class ModelLoadFailed(Exception):
+class ModelLoadFailedError(Exception):
     pass
 
 
@@ -33,8 +33,8 @@ def load_model(model_path: Path, model: TransformerLanguageModel, device: torch.
             print(f"Loading weights from: {model_path}")
             model_dict = torch.load(model_path, map_location=device)
             model.load_state_dict(model_dict)
-        except Exception:
-            raise ModelLoadFailed(model_path)
+        except Exception as error:
+            raise ModelLoadFailedError(model_path) from error
     else:
         print("No saved model, starting from scratch...gpt, lol!")
     return model
diff --git a/scratchgpt/tokenizer/char_tokenizer.py b/scratchgpt/tokenizer/char_tokenizer.py
index e57f5e3..b4be83f 100644
--- a/scratchgpt/tokenizer/char_tokenizer.py
+++ b/scratchgpt/tokenizer/char_tokenizer.py
@@ -4,7 +4,7 @@
 
 
 def get_vocab(text: str) -> list[str]:
-    chars = sorted(list(set(text)))
+    chars = sorted(set(text))
     return chars
 
 
@@ -13,7 +13,7 @@ def str_to_int(chars: list[str]) -> dict[str, int]:
 
 
 def int_to_str(chars: list[str]) -> dict[int, str]:
-    return {idx: char for idx, char in enumerate(chars)}
+    return dict(enumerate(chars))
 
 
 class CharTokenizer(Tokenizer):
@@ -48,7 +48,7 @@ def decode(
 class Utf8Tokenizer(Tokenizer):
 
     def __init__(self) -> None:
-        self._vocabulary = list(range(0, 256))
+        self._vocabulary = list(range(256))
 
     @property
     @override
diff --git a/scratchgpt/tokenizer/tiktoken.py b/scratchgpt/tokenizer/tiktoken.py
index c5131ee..b8d3e4b 100644
--- a/scratchgpt/tokenizer/tiktoken.py
+++ b/scratchgpt/tokenizer/tiktoken.py
@@ -39,7 +39,7 @@ def vocabulary(self) -> list[str]:
         """Return the learned vocabulary"""
         return list(self._get_cached_vocabulary())
 
-    @lru_cache(maxsize=1)
+    @lru_cache(maxsize=1)  # noqa: B019
     def _get_cached_vocabulary(self) -> tuple[str, ...]:
         """
         Cache and return the vocabulary as a tuple.
diff --git a/tests/test_tokenizer.py b/tests/test_tokenizer.py
index 0ce3ff2..8aeba6b 100644
--- a/tests/test_tokenizer.py
+++ b/tests/test_tokenizer.py
@@ -1,22 +1,22 @@
 from scratchgpt.tokenizer.char_tokenizer import CharTokenizer, Utf8Tokenizer
 
-
 test_data = [
-    "Привет, как дела? 😊", 
-    "Я люблю читать книги.", 
-    "Москва - это красивый город.", 
-    "안녕하세요 👋", 
-    "나는 당신을 만나서 행복해요 😊", 
-    "서울은 아름다운 도시입니다.", 
-    "Ciao, come stai? 😊", 
-    "Amo leggere libri.", 
-    "Roma è una città bellissima.", 
-    "Hello, how are you? 👋", 
-    "I love to read books.", 
-    "New York City is a bustling metropolis 🗽️"
+    "Привет, как дела? 😊",
+    "Я люблю читать книги.",
+    "Москва - это красивый город.",
+    "안녕하세요 👋",
+    "나는 당신을 만나서 행복해요 😊",
+    "서울은 아름다운 도시입니다.",
+    "Ciao, come stai? 😊",
+    "Amo leggere libri.",
+    "Roma è una città bellissima.",
+    "Hello, how are you? 👋",
+    "I love to read books.",
+    "New York City is a bustling metropolis 🗽️",
 ]
 
-def test_basic_char_tokenizer():
+
+def test_basic_char_tokenizer() -> None:
     test_corpus = "".join(test_data)
     tokenizer = CharTokenizer(test_corpus)
 
@@ -27,7 +27,7 @@ def test_basic_char_tokenizer():
         assert test_sample == decoded, "Oh no, this thing failed"
 
 
-def test_utf8_tokenizer():
+def test_utf8_tokenizer() -> None:
     tokenizer = Utf8Tokenizer()
 
     for test_sample in test_data:
diff --git a/uv.lock b/uv.lock
index 0d4ba7a..e73f2d5 100644
--- a/uv.lock
+++ b/uv.lock
@@ -11,15 +11,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/78/b6/6307fbef88d9b5ee7421e68d78a9f162e0da4900bc5f5793f6d3d0e34fb8/annotated_types-0.7.0-py3-none-any.whl", hash = "sha256:1f02e8b43a8fbbc3f3e0d4f0f4bfc8131bcb4eebe8849b8e5c773f3a1c582a53", size = 13643, upload-time = "2024-05-20T21:33:24.1Z" },
 ]
 
-[[package]]
-name = "astroid"
-version = "3.3.11"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/18/74/dfb75f9ccd592bbedb175d4a32fc643cf569d7c218508bfbd6ea7ef9c091/astroid-3.3.11.tar.gz", hash = "sha256:1e5a5011af2920c7c67a53f65d536d65bfa7116feeaf2354d8b94f29573bb0ce", size = 400439, upload-time = "2025-07-13T18:04:23.177Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/af/0f/3b8fdc946b4d9cc8cc1e8af42c4e409468c84441b933d037e101b3d72d86/astroid-3.3.11-py3-none-any.whl", hash = "sha256:54c760ae8322ece1abd213057c4b5bba7c49818853fc901ef09719a60dbf9dec", size = 275612, upload-time = "2025-07-13T18:04:21.07Z" },
-]
-
 [[package]]
 name = "bandit"
 version = "1.8.6"
@@ -35,30 +26,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/48/ca/ba5f909b40ea12ec542d5d7bdd13ee31c4d65f3beed20211ef81c18fa1f3/bandit-1.8.6-py3-none-any.whl", hash = "sha256:3348e934d736fcdb68b6aa4030487097e23a501adf3e7827b63658df464dddd0", size = 133808, upload-time = "2025-07-06T03:10:49.134Z" },
 ]
 
-[[package]]
-name = "black"
-version = "25.1.0"
-source = { registry = "https://pypi.org/simple" }
-dependencies = [
-    { name = "click" },
-    { name = "mypy-extensions" },
-    { name = "packaging" },
-    { name = "pathspec" },
-    { name = "platformdirs" },
-]
-sdist = { url = "https://files.pythonhosted.org/packages/94/49/26a7b0f3f35da4b5a65f081943b7bcd22d7002f5f0fb8098ec1ff21cb6ef/black-25.1.0.tar.gz", hash = "sha256:33496d5cd1222ad73391352b4ae8da15253c5de89b93a80b3e2c8d9a19ec2666", size = 649449, upload-time = "2025-01-29T04:15:40.373Z" }
-wheels = [
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-    { url = "https://files.pythonhosted.org/packages/13/f3/89aac8a83d73937ccd39bbe8fc6ac8860c11cfa0af5b1c96d081facac844/black-25.1.0-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:1e2978f6df243b155ef5fa7e558a43037c3079093ed5d10fd84c43900f2d8ecc", size = 1453985, upload-time = "2025-01-29T05:37:18.273Z" },
-    { url = "https://files.pythonhosted.org/packages/6f/22/b99efca33f1f3a1d2552c714b1e1b5ae92efac6c43e790ad539a163d1754/black-25.1.0-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:3b48735872ec535027d979e8dcb20bf4f70b5ac75a8ea99f127c106a7d7aba9f", size = 1783816, upload-time = "2025-01-29T04:18:33.823Z" },
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-    { url = "https://files.pythonhosted.org/packages/cc/64/94eb5f45dcb997d2082f097a3944cfc7fe87e071907f677e80788a2d7b7a/black-25.1.0-cp313-cp313-win_amd64.whl", hash = "sha256:a22f402b410566e2d1c950708c77ebf5ebd5d0d88a6a2e87c86d9fb48afa0d18", size = 1442613, upload-time = "2025-01-29T04:19:27.63Z" },
-    { url = "https://files.pythonhosted.org/packages/09/71/54e999902aed72baf26bca0d50781b01838251a462612966e9fc4891eadd/black-25.1.0-py3-none-any.whl", hash = "sha256:95e8176dae143ba9097f351d174fdaf0ccd29efb414b362ae3fd72bf0f710717", size = 207646, upload-time = "2025-01-29T04:15:38.082Z" },
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-
 [[package]]
 name = "certifi"
 version = "2025.8.3"
@@ -110,18 +77,6 @@ wheels = [
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-[[package]]
-name = "click"
-version = "8.2.1"
-source = { registry = "https://pypi.org/simple" }
-dependencies = [
-    { name = "colorama", marker = "sys_platform == 'win32'" },
-]
-sdist = { url = "https://files.pythonhosted.org/packages/60/6c/8ca2efa64cf75a977a0d7fac081354553ebe483345c734fb6b6515d96bbc/click-8.2.1.tar.gz", hash = "sha256:27c491cc05d968d271d5a1db13e3b5a184636d9d930f148c50b038f0d0646202", size = 286342, upload-time = "2025-05-20T23:19:49.832Z" }
-wheels = [
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-
 [[package]]
 name = "colorama"
 version = "0.4.6"
@@ -131,15 +86,6 @@ wheels = [
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 ]
 
-[[package]]
-name = "dill"
-version = "0.4.0"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/12/80/630b4b88364e9a8c8c5797f4602d0f76ef820909ee32f0bacb9f90654042/dill-0.4.0.tar.gz", hash = "sha256:0633f1d2df477324f53a895b02c901fb961bdbf65a17122586ea7019292cbcf0", size = 186976, upload-time = "2025-04-16T00:41:48.867Z" }
-wheels = [
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-
 [[package]]
 name = "filelock"
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