diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 00000000..c23a42bc
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,33 @@
+exclude: ^(data/|tests/|diffusion_policy/)
+default_language_version:
+    python: python3.10
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.5.0
+    hooks:
+      - id: check-added-large-files
+      - id: debug-statements
+      - id: check-merge-conflict
+      - id: check-case-conflict
+      - id: check-yaml
+      - id: check-toml
+      - id: end-of-file-fixer
+      - id: trailing-whitespace
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v3.15.1
+    hooks:
+    -   id: pyupgrade
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.2.2
+    hooks:
+      - id: ruff
+        args: [--fix]
+      - id: ruff-format
+  - repo: https://github.com/python-poetry/poetry
+    rev: 1.8.0
+    hooks:
+      - id: poetry-check
+      - id: poetry-lock
+        args:
+          - "--check"
+          - "--no-update"
diff --git a/README.md b/README.md
index b3bd2d0e..2afc9842 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ conda activate lerobot
 
 [Install `poetry`](https://python-poetry.org/docs/#installation) (if you don't have it already)
 ```
-curl -sSL https://install.python-poetry.org | python3 -
+curl -sSL https://install.python-poetry.org | python -
 ```
 
 Install dependencies
@@ -26,6 +26,7 @@ export TMPDIR='~/tmp'
 
 Install `diffusion_policy` #HACK
 ```
+# from this directory
 git clone https://github.com/real-stanford/diffusion_policy
 cp -r diffusion_policy/diffusion_policy $(poetry env info -p)/lib/python3.10/site-packages/
 ```
@@ -107,11 +108,10 @@ eval_episodes=7
 
 **Style**
 ```
-isort lerobot && isort tests && black lerobot && black tests
-pylint lerobot && pylint tests  # not enforce for now
+pre-commit install
 ```
 
 **Tests**
 ```
 pytest -sx tests
-```
\ No newline at end of file
+```
diff --git a/lerobot/common/datasets/factory.py b/lerobot/common/datasets/factory.py
index 3f436b74..9a129ba1 100644
--- a/lerobot/common/datasets/factory.py
+++ b/lerobot/common/datasets/factory.py
@@ -70,6 +70,7 @@ def make_offline_buffer(cfg, sampler=None):
         offline_buffer = PushtExperienceReplay(
             "pusht",
             # download="force",
+            # TODO(aliberts): automate download
             download=False,
             streaming=False,
             root="data",
diff --git a/lerobot/common/datasets/pusht.py b/lerobot/common/datasets/pusht.py
index 640afac3..3602856e 100644
--- a/lerobot/common/datasets/pusht.py
+++ b/lerobot/common/datasets/pusht.py
@@ -1,7 +1,6 @@
 import os
-import pickle
 from pathlib import Path
-from typing import Any, Callable, Dict, Tuple
+from typing import Callable
 
 import einops
 import numpy as np
@@ -10,25 +9,25 @@ import pymunk
 import torch
 import torchrl
 import tqdm
-from diffusion_policy.common.replay_buffer import ReplayBuffer
-from diffusion_policy.env.pusht.pusht_env import pymunk_to_shapely
 from tensordict import TensorDict
 from torchrl.data.datasets.utils import _get_root_dir
 from torchrl.data.replay_buffers.replay_buffers import (
-    TensorDictPrioritizedReplayBuffer,
     TensorDictReplayBuffer,
 )
 from torchrl.data.replay_buffers.samplers import (
     Sampler,
-    SliceSampler,
-    SliceSamplerWithoutReplacement,
 )
 from torchrl.data.replay_buffers.storages import TensorStorage, _collate_id
 from torchrl.data.replay_buffers.writers import ImmutableDatasetWriter, Writer
 
+from diffusion_policy.common.replay_buffer import ReplayBuffer
+from diffusion_policy.env.pusht.pusht_env import pymunk_to_shapely
+
 # as define in env
 SUCCESS_THRESHOLD = 0.95  # 95% coverage,
 
+DEFAULT_TEE_MASK = pymunk.ShapeFilter.ALL_MASKS()
+
 
 def get_goal_pose_body(pose):
     mass = 1
@@ -53,7 +52,7 @@ def add_tee(
     angle,
     scale=30,
     color="LightSlateGray",
-    mask=pymunk.ShapeFilter.ALL_MASKS(),
+    mask=DEFAULT_TEE_MASK,
 ):
     mass = 1
     length = 4
@@ -87,7 +86,6 @@ def add_tee(
 
 
 class PushtExperienceReplay(TensorDictReplayBuffer):
-
     def __init__(
         self,
         dataset_id,
@@ -127,7 +125,7 @@ class PushtExperienceReplay(TensorDictReplayBuffer):
         if split_trajs:
             raise NotImplementedError
 
-        if self.download == True:
+        if self.download:
             raise NotImplementedError()
 
         if root is None:
@@ -193,18 +191,18 @@ class PushtExperienceReplay(TensorDictReplayBuffer):
         # TODO(rcadene)
 
         # load
+        # TODO(aliberts): Dynamic paths
         zarr_path = (
             "/home/rcadene/code/diffusion_policy/data/pusht/pusht_cchi_v7_replay.zarr"
+            # "/home/simon/build/diffusion_policy/data/pusht/pusht_cchi_v7_replay.zarr"
         )
-        dataset_dict = ReplayBuffer.copy_from_path(
-            zarr_path
-        )  # , keys=['img', 'state', 'action'])
+        dataset_dict = ReplayBuffer.copy_from_path(zarr_path)  # , keys=['img', 'state', 'action'])
 
         episode_ids = dataset_dict.get_episode_idxs()
         num_episodes = dataset_dict.meta["episode_ends"].shape[0]
         total_frames = dataset_dict["action"].shape[0]
         assert len(
-            set([dataset_dict[key].shape[0] for key in dataset_dict.keys()])
+            {dataset_dict[key].shape[0] for key in dataset_dict}
         ), "Some data type dont have the same number of total frames."
 
         # TODO: verify that goal pose is expected to be fixed
@@ -245,9 +243,7 @@ class PushtExperienceReplay(TensorDictReplayBuffer):
                 ]
                 space.add(*walls)
 
-                block_body = add_tee(
-                    space, block_pos[i].tolist(), block_angle[i].item()
-                )
+                block_body = add_tee(space, block_pos[i].tolist(), block_angle[i].item())
                 goal_geom = pymunk_to_shapely(goal_body, block_body.shapes)
                 block_geom = pymunk_to_shapely(block_body, block_body.shapes)
                 intersection_area = goal_geom.intersection(block_geom).area
@@ -278,11 +274,7 @@ class PushtExperienceReplay(TensorDictReplayBuffer):
 
             if episode_id == 0:
                 # hack to initialize tensordict data structure to store episodes
-                td_data = (
-                    episode[0]
-                    .expand(total_frames)
-                    .memmap_like(self.root / self.dataset_id)
-                )
+                td_data = episode[0].expand(total_frames).memmap_like(self.root / self.dataset_id)
 
             td_data[idxtd : idxtd + len(episode)] = episode
 
diff --git a/lerobot/common/datasets/simxarm.py b/lerobot/common/datasets/simxarm.py
index 84e6ca7c..b0e17d52 100644
--- a/lerobot/common/datasets/simxarm.py
+++ b/lerobot/common/datasets/simxarm.py
@@ -1,7 +1,7 @@
 import os
 import pickle
 from pathlib import Path
-from typing import Any, Callable, Dict, Tuple
+from typing import Callable
 
 import torch
 import torchrl
@@ -9,7 +9,6 @@ import tqdm
 from tensordict import TensorDict
 from torchrl.data.datasets.utils import _get_root_dir
 from torchrl.data.replay_buffers.replay_buffers import (
-    TensorDictPrioritizedReplayBuffer,
     TensorDictReplayBuffer,
 )
 from torchrl.data.replay_buffers.samplers import (
@@ -22,7 +21,6 @@ from torchrl.data.replay_buffers.writers import ImmutableDatasetWriter, Writer
 
 
 class SimxarmExperienceReplay(TensorDictReplayBuffer):
-
     available_datasets = [
         "xarm_lift_medium",
     ]
@@ -77,15 +75,11 @@ class SimxarmExperienceReplay(TensorDictReplayBuffer):
 
         if num_slices is not None or slice_len is not None:
             if sampler is not None:
-                raise ValueError(
-                    "`num_slices` and `slice_len` are exclusive with the `sampler` argument."
-                )
+                raise ValueError("`num_slices` and `slice_len` are exclusive with the `sampler` argument.")
 
             if replacement:
                 if not self.shuffle:
-                    raise RuntimeError(
-                        "shuffle=False can only be used when replacement=False."
-                    )
+                    raise RuntimeError("shuffle=False can only be used when replacement=False.")
                 sampler = SliceSampler(
                     num_slices=num_slices,
                     slice_len=slice_len,
@@ -130,7 +124,7 @@ class SimxarmExperienceReplay(TensorDictReplayBuffer):
 
         # load
         dataset_dir = Path("data") / self.dataset_id
-        dataset_path = dataset_dir / f"buffer.pkl"
+        dataset_path = dataset_dir / "buffer.pkl"
         print(f"Using offline dataset '{dataset_path}'")
         with open(dataset_path, "rb") as f:
             dataset_dict = pickle.load(f)
@@ -150,12 +144,8 @@ class SimxarmExperienceReplay(TensorDictReplayBuffer):
 
             image = torch.tensor(dataset_dict["observations"]["rgb"][idx0:idx1])
             state = torch.tensor(dataset_dict["observations"]["state"][idx0:idx1])
-            next_image = torch.tensor(
-                dataset_dict["next_observations"]["rgb"][idx0:idx1]
-            )
-            next_state = torch.tensor(
-                dataset_dict["next_observations"]["state"][idx0:idx1]
-            )
+            next_image = torch.tensor(dataset_dict["next_observations"]["rgb"][idx0:idx1])
+            next_state = torch.tensor(dataset_dict["next_observations"]["state"][idx0:idx1])
             next_reward = torch.tensor(dataset_dict["rewards"][idx0:idx1])
             next_done = torch.tensor(dataset_dict["dones"][idx0:idx1])
 
@@ -176,11 +166,7 @@ class SimxarmExperienceReplay(TensorDictReplayBuffer):
 
             if episode_id == 0:
                 # hack to initialize tensordict data structure to store episodes
-                td_data = (
-                    episode[0]
-                    .expand(total_frames)
-                    .memmap_like(self.root / self.dataset_id)
-                )
+                td_data = episode[0].expand(total_frames).memmap_like(self.root / self.dataset_id)
 
             td_data[idx0:idx1] = episode
 
diff --git a/lerobot/common/envs/pusht.py b/lerobot/common/envs/pusht.py
index adc8c015..45cbc705 100644
--- a/lerobot/common/envs/pusht.py
+++ b/lerobot/common/envs/pusht.py
@@ -1,7 +1,6 @@
 import importlib
 from typing import Optional
 
-import numpy as np
 import torch
 from tensordict import TensorDict
 from torchrl.data.tensor_specs import (
@@ -20,7 +19,6 @@ _has_diffpolicy = importlib.util.find_spec("diffusion_policy") is not None and _
 
 
 class PushtEnv(EnvBase):
-
     def __init__(
         self,
         frame_skip: int = 1,
@@ -46,7 +44,8 @@ class PushtEnv(EnvBase):
         if not _has_gym:
             raise ImportError("Cannot import gym.")
 
-        from diffusion_policy.env.pusht.pusht_env import PushTEnv
+        # TODO(rcadene) (PushTEnv is similar to PushTImageEnv, but without the image rendering, it's faster to iterate on)
+        # from diffusion_policy.env.pusht.pusht_env import PushTEnv
 
         if not from_pixels:
             raise NotImplementedError("Use PushTEnv, instead of PushTImageEnv")
@@ -71,14 +70,10 @@ class PushtEnv(EnvBase):
             obs = {"image": torch.from_numpy(raw_obs["image"])}
 
             if not self.pixels_only:
-                obs["state"] = torch.from_numpy(raw_obs["agent_pos"]).type(
-                    torch.float32
-                )
+                obs["state"] = torch.from_numpy(raw_obs["agent_pos"]).type(torch.float32)
         else:
             # TODO:
-            obs = {
-                "state": torch.from_numpy(raw_obs["observation"]).type(torch.float32)
-            }
+            obs = {"state": torch.from_numpy(raw_obs["observation"]).type(torch.float32)}
 
         obs = TensorDict(obs, batch_size=[])
         return obs
@@ -109,7 +104,7 @@ class PushtEnv(EnvBase):
         # step expects shape=(4,) so we pad if necessary
         # TODO(rcadene): add info["is_success"] and info["success"] ?
         sum_reward = 0
-        for t in range(self.frame_skip):
+        for _ in range(self.frame_skip):
             raw_obs, reward, done, info = self._env.step(action)
             sum_reward += reward
 
diff --git a/lerobot/common/envs/simxarm.py b/lerobot/common/envs/simxarm.py
index e25841fe..24fd9ba4 100644
--- a/lerobot/common/envs/simxarm.py
+++ b/lerobot/common/envs/simxarm.py
@@ -15,12 +15,13 @@ from torchrl.envs.libs.gym import _gym_to_torchrl_spec_transform
 
 from lerobot.common.utils import set_seed
 
+MAX_NUM_ACTIONS = 4
+
 _has_gym = importlib.util.find_spec("gym") is not None
 _has_simxarm = importlib.util.find_spec("simxarm") is not None and _has_gym
 
 
 class SimxarmEnv(EnvBase):
-
     def __init__(
         self,
         task,
@@ -52,18 +53,13 @@ class SimxarmEnv(EnvBase):
         from simxarm import TASKS
 
         if self.task not in TASKS:
-            raise ValueError(
-                f"Unknown task {self.task}. Must be one of {list(TASKS.keys())}"
-            )
+            raise ValueError(f"Unknown task {self.task}. Must be one of {list(TASKS.keys())}")
 
         self._env = TASKS[self.task]["env"]()
 
-        MAX_NUM_ACTIONS = 4
         num_actions = len(TASKS[self.task]["action_space"])
         self._action_space = gym.spaces.Box(low=-1.0, high=1.0, shape=(num_actions,))
-        self._action_padding = np.zeros(
-            (MAX_NUM_ACTIONS - num_actions), dtype=np.float32
-        )
+        self._action_padding = np.zeros((MAX_NUM_ACTIONS - num_actions), dtype=np.float32)
         if "w" not in TASKS[self.task]["action_space"]:
             self._action_padding[-1] = 1.0
 
@@ -75,9 +71,7 @@ class SimxarmEnv(EnvBase):
 
     def _format_raw_obs(self, raw_obs):
         if self.from_pixels:
-            image = self.render(
-                mode="rgb_array", width=self.image_size, height=self.image_size
-            )
+            image = self.render(mode="rgb_array", width=self.image_size, height=self.image_size)
             image = image.transpose(2, 0, 1)  # (H, W, C) -> (C, H, W)
             image = torch.tensor(image.copy(), dtype=torch.uint8)
 
@@ -114,7 +108,7 @@ class SimxarmEnv(EnvBase):
         action = np.concatenate([action, self._action_padding])
         # TODO(rcadene): add info["is_success"] and info["success"] ?
         sum_reward = 0
-        for t in range(self.frame_skip):
+        for _ in range(self.frame_skip):
             raw_obs, reward, done, info = self._env.step(action)
             sum_reward += reward
 
diff --git a/lerobot/common/envs/transforms.py b/lerobot/common/envs/transforms.py
index f1e6657b..1a3c1ce1 100644
--- a/lerobot/common/envs/transforms.py
+++ b/lerobot/common/envs/transforms.py
@@ -5,7 +5,6 @@ from torchrl.envs.transforms import ObservationTransform
 
 
 class Prod(ObservationTransform):
-
     def __init__(self, in_keys: Sequence[NestedKey], prod: float):
         super().__init__()
         self.in_keys = in_keys
diff --git a/lerobot/common/logger.py b/lerobot/common/logger.py
index a013c9ec..ddf2ef04 100644
--- a/lerobot/common/logger.py
+++ b/lerobot/common/logger.py
@@ -1,6 +1,6 @@
+import contextlib
 import datetime
 import os
-import re
 from pathlib import Path
 
 import numpy as np
@@ -29,10 +29,8 @@ AGENT_METRICS = [
 
 def make_dir(dir_path):
     """Create directory if it does not already exist."""
-    try:
+    with contextlib.suppress(OSError):
         dir_path.mkdir(parents=True, exist_ok=True)
-    except OSError:
-        pass
     return dir_path
 
 
@@ -59,9 +57,7 @@ def print_run(cfg, reward=None):
         # ('experiment', cfg.exp_name),
     ]
     if reward is not None:
-        kvs.append(
-            ("episode reward", colored(str(int(reward)), "white", attrs=["bold"]))
-        )
+        kvs.append(("episode reward", colored(str(int(reward)), "white", attrs=["bold"])))
     w = np.max([len(limstr(str(kv[1]))) for kv in kvs]) + 21
     div = "-" * w
     print(div)
@@ -80,7 +76,7 @@ def cfg_to_group(cfg, return_list=False):
     return lst if return_list else "-".join(lst)
 
 
-class Logger(object):
+class Logger:
     """Primary logger object. Logs either locally or using wandb."""
 
     def __init__(self, log_dir, job_name, cfg):
@@ -183,7 +179,5 @@ class Logger(object):
         if category == "eval":
             keys = ["step", "avg_sum_reward", "avg_max_reward", "pc_success"]
             self._eval.append(np.array([d[key] for key in keys]))
-            pd.DataFrame(np.array(self._eval)).to_csv(
-                self._log_dir / "eval.log", header=keys, index=None
-            )
+            pd.DataFrame(np.array(self._eval)).to_csv(self._log_dir / "eval.log", header=keys, index=None)
         self._print(d, category)
diff --git a/lerobot/common/policies/diffusion.py b/lerobot/common/policies/diffusion.py
index 3bd9f515..92187290 100644
--- a/lerobot/common/policies/diffusion.py
+++ b/lerobot/common/policies/diffusion.py
@@ -3,16 +3,17 @@ import copy
 import hydra
 import torch
 import torch.nn as nn
-import torch.nn.functional as F
 from diffusers.schedulers.scheduling_ddpm import DDPMScheduler
+
 from diffusion_policy.model.common.lr_scheduler import get_scheduler
 from diffusion_policy.model.vision.model_getter import get_resnet
 from diffusion_policy.model.vision.multi_image_obs_encoder import MultiImageObsEncoder
 from diffusion_policy.policy.diffusion_unet_image_policy import DiffusionUnetImagePolicy
 
+FIRST_ACTION = 0
+
 
 class DiffusionPolicy(nn.Module):
-
     def __init__(
         self,
         cfg,
@@ -105,7 +106,6 @@ class DiffusionPolicy(nn.Module):
         out = self.diffusion.predict_action(obs_dict)
 
         # TODO(rcadene): add possibility to return >1 timestemps
-        FIRST_ACTION = 0
         action = out["action"].squeeze(0)[FIRST_ACTION]
         return action
 
@@ -132,10 +132,7 @@ class DiffusionPolicy(nn.Module):
             }
             return out
 
-        if self.cfg.balanced_sampling:
-            batch = replay_buffer.sample(batch_size)
-        else:
-            batch = replay_buffer.sample()
+        batch = replay_buffer.sample(batch_size) if self.cfg.balanced_sampling else replay_buffer.sample()
         batch = process_batch(batch, self.cfg.horizon, num_slices)
 
         loss = self.diffusion.compute_loss(batch)
diff --git a/lerobot/common/policies/tdmpc.py b/lerobot/common/policies/tdmpc.py
index 55c022df..374c4089 100644
--- a/lerobot/common/policies/tdmpc.py
+++ b/lerobot/common/policies/tdmpc.py
@@ -1,3 +1,5 @@
+# ruff: noqa: N806
+
 from copy import deepcopy
 
 import einops
@@ -7,6 +9,8 @@ import torch.nn as nn
 
 import lerobot.common.policies.tdmpc_helper as h
 
+FIRST_FRAME = 0
+
 
 class TOLD(nn.Module):
     """Task-Oriented Latent Dynamics (TOLD) model used in TD-MPC."""
@@ -17,9 +21,7 @@ class TOLD(nn.Module):
 
         self.cfg = cfg
         self._encoder = h.enc(cfg)
-        self._dynamics = h.dynamics(
-            cfg.latent_dim + action_dim, cfg.mlp_dim, cfg.latent_dim
-        )
+        self._dynamics = h.dynamics(cfg.latent_dim + action_dim, cfg.mlp_dim, cfg.latent_dim)
         self._reward = h.mlp(cfg.latent_dim + action_dim, cfg.mlp_dim, 1)
         self._pi = h.mlp(cfg.latent_dim, cfg.mlp_dim, action_dim)
         self._Qs = nn.ModuleList([h.q(cfg) for _ in range(cfg.num_q)])
@@ -65,17 +67,17 @@ class TOLD(nn.Module):
             return h.TruncatedNormal(mu, std).sample(clip=0.3)
         return mu
 
-    def V(self, z):
+    def V(self, z):  # noqa: N802
         """Predict state value (V)."""
         return self._V(z)
 
-    def Q(self, z, a, return_type):
+    def Q(self, z, a, return_type):  # noqa: N802
         """Predict state-action value (Q)."""
         assert return_type in {"min", "avg", "all"}
         x = torch.cat([z, a], dim=-1)
 
         if return_type == "all":
-            return torch.stack(list(q(x) for q in self._Qs), dim=0)
+            return torch.stack([q(x) for q in self._Qs], dim=0)
 
         idxs = np.random.choice(self.cfg.num_q, 2, replace=False)
         Q1, Q2 = self._Qs[idxs[0]](x), self._Qs[idxs[1]](x)
@@ -160,11 +162,7 @@ class TDMPC(nn.Module):
         pi = self.model.pi(z, self.cfg.min_std)
         G += discount * self.model.Q(z, pi, return_type="min")
         if self.cfg.uncertainty_cost > 0:
-            G -= (
-                discount
-                * self.cfg.uncertainty_cost
-                * self.model.Q(z, pi, return_type="all").std(dim=0)
-            )
+            G -= discount * self.cfg.uncertainty_cost * self.model.Q(z, pi, return_type="all").std(dim=0)
         return G
 
     @torch.no_grad()
@@ -180,19 +178,13 @@ class TDMPC(nn.Module):
         assert step is not None
         # Seed steps
         if step < self.cfg.seed_steps and self.model.training:
-            return torch.empty(
-                self.action_dim, dtype=torch.float32, device=self.device
-            ).uniform_(-1, 1)
+            return torch.empty(self.action_dim, dtype=torch.float32, device=self.device).uniform_(-1, 1)
 
         # Sample policy trajectories
-        horizon = int(
-            min(self.cfg.horizon, h.linear_schedule(self.cfg.horizon_schedule, step))
-        )
+        horizon = int(min(self.cfg.horizon, h.linear_schedule(self.cfg.horizon_schedule, step)))
         num_pi_trajs = int(self.cfg.mixture_coef * self.cfg.num_samples)
         if num_pi_trajs > 0:
-            pi_actions = torch.empty(
-                horizon, num_pi_trajs, self.action_dim, device=self.device
-            )
+            pi_actions = torch.empty(horizon, num_pi_trajs, self.action_dim, device=self.device)
             _z = z.repeat(num_pi_trajs, 1)
             for t in range(horizon):
                 pi_actions[t] = self.model.pi(_z, self.cfg.min_std)
@@ -201,20 +193,16 @@ class TDMPC(nn.Module):
         # Initialize state and parameters
         z = z.repeat(self.cfg.num_samples + num_pi_trajs, 1)
         mean = torch.zeros(horizon, self.action_dim, device=self.device)
-        std = self.cfg.max_std * torch.ones(
-            horizon, self.action_dim, device=self.device
-        )
+        std = self.cfg.max_std * torch.ones(horizon, self.action_dim, device=self.device)
         if not t0 and hasattr(self, "_prev_mean"):
             mean[:-1] = self._prev_mean[1:]
 
         # Iterate CEM
-        for i in range(self.cfg.iterations):
+        for _ in range(self.cfg.iterations):
             actions = torch.clamp(
                 mean.unsqueeze(1)
                 + std.unsqueeze(1)
-                * torch.randn(
-                    horizon, self.cfg.num_samples, self.action_dim, device=std.device
-                ),
+                * torch.randn(horizon, self.cfg.num_samples, self.action_dim, device=std.device),
                 -1,
                 1,
             )
@@ -223,18 +211,14 @@ class TDMPC(nn.Module):
 
             # Compute elite actions
             value = self.estimate_value(z, actions, horizon).nan_to_num_(0)
-            elite_idxs = torch.topk(
-                value.squeeze(1), self.cfg.num_elites, dim=0
-            ).indices
+            elite_idxs = torch.topk(value.squeeze(1), self.cfg.num_elites, dim=0).indices
             elite_value, elite_actions = value[elite_idxs], actions[:, elite_idxs]
 
             # Update parameters
             max_value = elite_value.max(0)[0]
             score = torch.exp(self.cfg.temperature * (elite_value - max_value))
             score /= score.sum(0)
-            _mean = torch.sum(score.unsqueeze(0) * elite_actions, dim=1) / (
-                score.sum(0) + 1e-9
-            )
+            _mean = torch.sum(score.unsqueeze(0) * elite_actions, dim=1) / (score.sum(0) + 1e-9)
             _std = torch.sqrt(
                 torch.sum(
                     score.unsqueeze(0) * (elite_actions - _mean.unsqueeze(1)) ** 2,
@@ -331,7 +315,6 @@ class TDMPC(nn.Module):
             batch = batch.reshape(num_slices, horizon).transpose(1, 0).contiguous()
             batch = batch.to(self.device)
 
-            FIRST_FRAME = 0
             obs = {
                 "rgb": batch["observation", "image"][FIRST_FRAME].float(),
                 "state": batch["observation", "state"][FIRST_FRAME],
@@ -359,10 +342,7 @@ class TDMPC(nn.Module):
             weights = batch["_weight"][FIRST_FRAME, :, None]
             return obs, action, next_obses, reward, mask, done, idxs, weights
 
-        if self.cfg.balanced_sampling:
-            batch = replay_buffer.sample(batch_size)
-        else:
-            batch = replay_buffer.sample()
+        batch = replay_buffer.sample(batch_size) if self.cfg.balanced_sampling else replay_buffer.sample()
 
         obs, action, next_obses, reward, mask, done, idxs, weights = process_batch(
             batch, self.cfg.horizon, num_slices
@@ -384,10 +364,7 @@ class TDMPC(nn.Module):
 
             if isinstance(obs, dict):
                 obs = {k: torch.cat([obs[k], demo_obs[k]]) for k in obs}
-                next_obses = {
-                    k: torch.cat([next_obses[k], demo_next_obses[k]], dim=1)
-                    for k in next_obses
-                }
+                next_obses = {k: torch.cat([next_obses[k], demo_next_obses[k]], dim=1) for k in next_obses}
             else:
                 obs = torch.cat([obs, demo_obs])
                 next_obses = torch.cat([next_obses, demo_next_obses], dim=1)
@@ -429,9 +406,7 @@ class TDMPC(nn.Module):
             td_targets = self._td_target(next_z, reward, mask)
 
         # Latent rollout
-        zs = torch.empty(
-            horizon + 1, self.batch_size, self.cfg.latent_dim, device=self.device
-        )
+        zs = torch.empty(horizon + 1, self.batch_size, self.cfg.latent_dim, device=self.device)
         reward_preds = torch.empty_like(reward, device=self.device)
         assert reward.shape[0] == horizon
         z = self.model.encode(obs)
@@ -452,12 +427,10 @@ class TDMPC(nn.Module):
         value_info["V"] = v.mean().item()
 
         # Losses
-        rho = torch.pow(self.cfg.rho, torch.arange(horizon, device=self.device)).view(
-            -1, 1, 1
+        rho = torch.pow(self.cfg.rho, torch.arange(horizon, device=self.device)).view(-1, 1, 1)
+        consistency_loss = (rho * torch.mean(h.mse(zs[1:], z_targets), dim=2, keepdim=True) * loss_mask).sum(
+            dim=0
         )
-        consistency_loss = (
-            rho * torch.mean(h.mse(zs[1:], z_targets), dim=2, keepdim=True) * loss_mask
-        ).sum(dim=0)
         reward_loss = (rho * h.mse(reward_preds, reward) * loss_mask).sum(dim=0)
         q_value_loss, priority_loss = 0, 0
         for q in range(self.cfg.num_q):
@@ -465,9 +438,7 @@ class TDMPC(nn.Module):
             priority_loss += (rho * h.l1(qs[q], td_targets) * loss_mask).sum(dim=0)
 
         expectile = h.linear_schedule(self.cfg.expectile, step)
-        v_value_loss = (
-            rho * h.l2_expectile(v_target - v, expectile=expectile) * loss_mask
-        ).sum(dim=0)
+        v_value_loss = (rho * h.l2_expectile(v_target - v, expectile=expectile) * loss_mask).sum(dim=0)
 
         total_loss = (
             self.cfg.consistency_coef * consistency_loss
diff --git a/lerobot/common/policies/tdmpc_helper.py b/lerobot/common/policies/tdmpc_helper.py
index dd7abbec..264cd829 100644
--- a/lerobot/common/policies/tdmpc_helper.py
+++ b/lerobot/common/policies/tdmpc_helper.py
@@ -5,11 +5,15 @@ import re
 import numpy as np
 import torch
 import torch.nn as nn
-import torch.nn.functional as F
+import torch.nn.functional as F  # noqa: N812
 from torch import distributions as pyd
 from torch.distributions.utils import _standard_normal
 
-__REDUCE__ = lambda b: "mean" if b else "none"
+DEFAULT_ACT_FN = nn.Mish()
+
+
+def __REDUCE__(b):  # noqa: N802, N807
+    return "mean" if b else "none"
 
 
 def l1(pred, target, reduce=False):
@@ -36,11 +40,7 @@ def l2_expectile(diff, expectile=0.7, reduce=False):
 def _get_out_shape(in_shape, layers):
     """Utility function. Returns the output shape of a network for a given input shape."""
     x = torch.randn(*in_shape).unsqueeze(0)
-    return (
-        (nn.Sequential(*layers) if isinstance(layers, list) else layers)(x)
-        .squeeze(0)
-        .shape
-    )
+    return (nn.Sequential(*layers) if isinstance(layers, list) else layers)(x).squeeze(0).shape
 
 
 def gaussian_logprob(eps, log_std):
@@ -73,7 +73,7 @@ def orthogonal_init(m):
 def ema(m, m_target, tau):
     """Update slow-moving average of online network (target network) at rate tau."""
     with torch.no_grad():
-        for p, p_target in zip(m.parameters(), m_target.parameters()):
+        for p, p_target in zip(m.parameters(), m_target.parameters(), strict=False):
             p_target.data.lerp_(p.data, tau)
 
 
@@ -86,6 +86,8 @@ def set_requires_grad(net, value):
 class TruncatedNormal(pyd.Normal):
     """Utility class implementing the truncated normal distribution."""
 
+    default_sample_shape = torch.Size()
+
     def __init__(self, loc, scale, low=-1.0, high=1.0, eps=1e-6):
         super().__init__(loc, scale, validate_args=False)
         self.low = low
@@ -97,7 +99,7 @@ class TruncatedNormal(pyd.Normal):
         x = x - x.detach() + clamped_x.detach()
         return x
 
-    def sample(self, clip=None, sample_shape=torch.Size()):
+    def sample(self, clip=None, sample_shape=default_sample_shape):
         shape = self._extended_shape(sample_shape)
         eps = _standard_normal(shape, dtype=self.loc.dtype, device=self.loc.device)
         eps *= self.scale
@@ -136,7 +138,7 @@ def enc(cfg):
     """Returns a TOLD encoder."""
     pixels_enc_layers, state_enc_layers = None, None
     if cfg.modality in {"pixels", "all"}:
-        C = int(3 * cfg.frame_stack)
+        C = int(3 * cfg.frame_stack)  # noqa: N806
         pixels_enc_layers = [
             NormalizeImg(),
             nn.Conv2d(C, cfg.num_channels, 7, stride=2),
@@ -184,7 +186,7 @@ def enc(cfg):
     return Multiplexer(nn.ModuleDict(encoders))
 
 
-def mlp(in_dim, mlp_dim, out_dim, act_fn=nn.Mish()):
+def mlp(in_dim, mlp_dim, out_dim, act_fn=DEFAULT_ACT_FN):
     """Returns an MLP."""
     if isinstance(mlp_dim, int):
         mlp_dim = [mlp_dim, mlp_dim]
@@ -199,7 +201,7 @@ def mlp(in_dim, mlp_dim, out_dim, act_fn=nn.Mish()):
     )
 
 
-def dynamics(in_dim, mlp_dim, out_dim, act_fn=nn.Mish()):
+def dynamics(in_dim, mlp_dim, out_dim, act_fn=DEFAULT_ACT_FN):
     """Returns a dynamics network."""
     return nn.Sequential(
         mlp(in_dim, mlp_dim, out_dim, act_fn),
@@ -327,7 +329,7 @@ class RandomShiftsAug(nn.Module):
         return F.grid_sample(x, grid, padding_mode="zeros", align_corners=False)
 
 
-class Episode(object):
+class Episode:
     """Storage object for a single episode."""
 
     def __init__(self, cfg, init_obs):
@@ -354,18 +356,10 @@ class Episode(object):
                 self.obses[k][0] = torch.tensor(v, dtype=dtype, device=self.device)
         else:
             raise ValueError
-        self.actions = torch.empty(
-            (cfg.episode_length, action_dim), dtype=torch.float32, device=self.device
-        )
-        self.rewards = torch.empty(
-            (cfg.episode_length,), dtype=torch.float32, device=self.device
-        )
-        self.dones = torch.empty(
-            (cfg.episode_length,), dtype=torch.bool, device=self.device
-        )
-        self.masks = torch.empty(
-            (cfg.episode_length,), dtype=torch.float32, device=self.device
-        )
+        self.actions = torch.empty((cfg.episode_length, action_dim), dtype=torch.float32, device=self.device)
+        self.rewards = torch.empty((cfg.episode_length,), dtype=torch.float32, device=self.device)
+        self.dones = torch.empty((cfg.episode_length,), dtype=torch.bool, device=self.device)
+        self.masks = torch.empty((cfg.episode_length,), dtype=torch.float32, device=self.device)
         self.cumulative_reward = 0
         self.done = False
         self.success = False
@@ -380,23 +374,17 @@ class Episode(object):
 
         if cfg.modality in {"pixels", "state"}:
             episode = cls(cfg, obses[0])
-            episode.obses[1:] = torch.tensor(
-                obses[1:], dtype=episode.obses.dtype, device=episode.device
-            )
+            episode.obses[1:] = torch.tensor(obses[1:], dtype=episode.obses.dtype, device=episode.device)
         elif cfg.modality == "all":
             episode = cls(cfg, {k: v[0] for k, v in obses.items()})
-            for k, v in obses.items():
+            for k in obses:
                 episode.obses[k][1:] = torch.tensor(
                     obses[k][1:], dtype=episode.obses[k].dtype, device=episode.device
                 )
         else:
             raise NotImplementedError
-        episode.actions = torch.tensor(
-            actions, dtype=episode.actions.dtype, device=episode.device
-        )
-        episode.rewards = torch.tensor(
-            rewards, dtype=episode.rewards.dtype, device=episode.device
-        )
+        episode.actions = torch.tensor(actions, dtype=episode.actions.dtype, device=episode.device)
+        episode.rewards = torch.tensor(rewards, dtype=episode.rewards.dtype, device=episode.device)
         episode.dones = (
             torch.tensor(dones, dtype=episode.dones.dtype, device=episode.device)
             if dones is not None
@@ -428,9 +416,7 @@ class Episode(object):
                     v, dtype=self.obses[k].dtype, device=self.obses[k].device
                 )
         else:
-            self.obses[self._idx + 1] = torch.tensor(
-                obs, dtype=self.obses.dtype, device=self.obses.device
-            )
+            self.obses[self._idx + 1] = torch.tensor(obs, dtype=self.obses.dtype, device=self.obses.device)
         self.actions[self._idx] = action
         self.rewards[self._idx] = reward
         self.dones[self._idx] = done
@@ -453,7 +439,7 @@ def get_dataset_dict(cfg, env, return_reward_normalizer=False):
     ]
 
     if cfg.task.startswith("xarm"):
-        dataset_path = os.path.join(cfg.dataset_dir, f"buffer.pkl")
+        dataset_path = os.path.join(cfg.dataset_dir, "buffer.pkl")
         print(f"Using offline dataset '{dataset_path}'")
         with open(dataset_path, "rb") as f:
             dataset_dict = pickle.load(f)
@@ -461,7 +447,7 @@ def get_dataset_dict(cfg, env, return_reward_normalizer=False):
             if k not in dataset_dict and k[:-1] in dataset_dict:
                 dataset_dict[k] = dataset_dict.pop(k[:-1])
     elif cfg.task.startswith("legged"):
-        dataset_path = os.path.join(cfg.dataset_dir, f"buffer.pkl")
+        dataset_path = os.path.join(cfg.dataset_dir, "buffer.pkl")
         print(f"Using offline dataset '{dataset_path}'")
         with open(dataset_path, "rb") as f:
             dataset_dict = pickle.load(f)
@@ -475,10 +461,7 @@ def get_dataset_dict(cfg, env, return_reward_normalizer=False):
 
         for i in range(len(dones) - 1):
             if (
-                np.linalg.norm(
-                    dataset_dict["observations"][i + 1]
-                    - dataset_dict["next_observations"][i]
-                )
+                np.linalg.norm(dataset_dict["observations"][i + 1] - dataset_dict["next_observations"][i])
                 > 1e-6
                 or dataset_dict["terminals"][i] == 1.0
             ):
@@ -501,7 +484,7 @@ def get_dataset_dict(cfg, env, return_reward_normalizer=False):
     dataset_dict["rewards"] = reward_normalizer(dataset_dict["rewards"])
 
     for key in required_keys:
-        assert key in dataset_dict.keys(), f"Missing `{key}` in dataset."
+        assert key in dataset_dict, f"Missing `{key}` in dataset."
 
     if return_reward_normalizer:
         return dataset_dict, reward_normalizer
@@ -553,9 +536,7 @@ def get_reward_normalizer(cfg, dataset):
         return lambda x: x - 1.0
     elif cfg.task.split("-")[0] in ["hopper", "halfcheetah", "walker2d"]:
         (_, _, episode_returns) = get_trajectory_boundaries_and_returns(dataset)
-        return (
-            lambda x: x / (np.max(episode_returns) - np.min(episode_returns)) * 1000.0
-        )
+        return lambda x: x / (np.max(episode_returns) - np.min(episode_returns)) * 1000.0
     elif hasattr(cfg, "reward_scale"):
         return lambda x: x * cfg.reward_scale
     return lambda x: x
@@ -571,12 +552,12 @@ def linear_schedule(schdl, step):
     except ValueError:
         match = re.match(r"linear\((.+),(.+),(.+),(.+)\)", schdl)
         if match:
-            init, final, start, end = [float(g) for g in match.groups()]
+            init, final, start, end = (float(g) for g in match.groups())
             mix = np.clip((step - start) / (end - start), 0.0, 1.0)
             return (1.0 - mix) * init + mix * final
         match = re.match(r"linear\((.+),(.+),(.+)\)", schdl)
         if match:
-            init, final, duration = [float(g) for g in match.groups()]
+            init, final, duration = (float(g) for g in match.groups())
             mix = np.clip(step / duration, 0.0, 1.0)
             return (1.0 - mix) * init + mix * final
     raise NotImplementedError(schdl)
diff --git a/lerobot/configs/env/pusht.yaml b/lerobot/configs/env/pusht.yaml
index 1719321b..6866f053 100644
--- a/lerobot/configs/env/pusht.yaml
+++ b/lerobot/configs/env/pusht.yaml
@@ -22,4 +22,4 @@ env:
 
 policy:
   state_dim: 2
-  action_dim: 2
\ No newline at end of file
+  action_dim: 2
diff --git a/lerobot/configs/env/simxarm.yaml b/lerobot/configs/env/simxarm.yaml
index 0658636a..b235dff7 100644
--- a/lerobot/configs/env/simxarm.yaml
+++ b/lerobot/configs/env/simxarm.yaml
@@ -21,4 +21,4 @@ env:
 
 policy:
   state_dim: 4
-  action_dim: 4
\ No newline at end of file
+  action_dim: 4
diff --git a/lerobot/scripts/eval.py b/lerobot/scripts/eval.py
index 2e8f6965..8240f654 100644
--- a/lerobot/scripts/eval.py
+++ b/lerobot/scripts/eval.py
@@ -37,10 +37,11 @@ def eval_policy(
         tensordict = env.reset()
 
         ep_frames = []
+
         if save_video or (return_first_video and i == 0):
 
             def rendering_callback(env, td=None):
-                ep_frames.append(env.render())
+                ep_frames.append(env.render())  # noqa: B023
 
             # render first frame before rollout
             rendering_callback(env)
diff --git a/lerobot/scripts/train.py b/lerobot/scripts/train.py
index 26f13f37..c5268aa8 100644
--- a/lerobot/scripts/train.py
+++ b/lerobot/scripts/train.py
@@ -6,8 +6,6 @@ import torch
 from tensordict.nn import TensorDictModule
 from termcolor import colored
 from torchrl.data import LazyMemmapStorage, TensorDictReplayBuffer
-from torchrl.data.datasets.d4rl import D4RLExperienceReplay
-from torchrl.data.datasets.openx import OpenXExperienceReplay
 from torchrl.data.replay_buffers import PrioritizedSliceSampler
 
 from lerobot.common.datasets.factory import make_offline_buffer
@@ -27,9 +25,7 @@ def train_cli(cfg: dict):
     )
 
 
-def train_notebook(
-    out_dir=None, job_name=None, config_name="default", config_path="../configs"
-):
+def train_notebook(out_dir=None, job_name=None, config_name="default", config_path="../configs"):
     from hydra import compose, initialize
 
     hydra.core.global_hydra.GlobalHydra.instance().clear()
@@ -38,7 +34,7 @@ def train_notebook(
     train(cfg, out_dir=out_dir, job_name=job_name)
 
 
-def log_training_metrics(L, metrics, step, online_episode_idx, start_time, is_offline):
+def log_training_metrics(logger, metrics, step, online_episode_idx, start_time, is_offline):
     common_metrics = {
         "episode": online_episode_idx,
         "step": step,
@@ -46,12 +42,10 @@ def log_training_metrics(L, metrics, step, online_episode_idx, start_time, is_of
         "is_offline": float(is_offline),
     }
     metrics.update(common_metrics)
-    L.log(metrics, category="train")
+    logger.log(metrics, category="train")
 
 
-def eval_policy_and_log(
-    env, td_policy, step, online_episode_idx, start_time, cfg, L, is_offline
-):
+def eval_policy_and_log(env, td_policy, step, online_episode_idx, start_time, cfg, logger, is_offline):
     common_metrics = {
         "episode": online_episode_idx,
         "step": step,
@@ -65,11 +59,11 @@ def eval_policy_and_log(
         return_first_video=True,
     )
     metrics.update(common_metrics)
-    L.log(metrics, category="eval")
+    logger.log(metrics, category="eval")
 
     if cfg.wandb.enable:
-        eval_video = L._wandb.Video(first_video, fps=cfg.fps, format="mp4")
-        L._wandb.log({"eval_video": eval_video}, step=step)
+        eval_video = logger._wandb.Video(first_video, fps=cfg.fps, format="mp4")
+        logger._wandb.log({"eval_video": eval_video}, step=step)
 
 
 def train(cfg: dict, out_dir=None, job_name=None):
@@ -116,7 +110,7 @@ def train(cfg: dict, out_dir=None, job_name=None):
             sampler=online_sampler,
         )
 
-    L = Logger(out_dir, job_name, cfg)
+    logger = Logger(out_dir, job_name, cfg)
 
     online_episode_idx = 0
     start_time = time.time()
@@ -129,9 +123,7 @@ def train(cfg: dict, out_dir=None, job_name=None):
         metrics = policy.update(offline_buffer, step)
 
         if step % cfg.log_freq == 0:
-            log_training_metrics(
-                L, metrics, step, online_episode_idx, start_time, is_offline=False
-            )
+            log_training_metrics(logger, metrics, step, online_episode_idx, start_time, is_offline=False)
 
         if step > 0 and step % cfg.eval_freq == 0:
             eval_policy_and_log(
@@ -141,13 +133,13 @@ def train(cfg: dict, out_dir=None, job_name=None):
                 online_episode_idx,
                 start_time,
                 cfg,
-                L,
+                logger,
                 is_offline=True,
             )
 
         if step > 0 and cfg.save_model and step % cfg.save_freq == 0:
             print(f"Checkpoint model at step {step}")
-            L.save_model(policy, identifier=step)
+            logger.save_model(policy, identifier=step)
 
         step += 1
 
@@ -164,9 +156,7 @@ def train(cfg: dict, out_dir=None, job_name=None):
                 auto_cast_to_device=True,
             )
         assert len(rollout) <= cfg.env.episode_length
-        rollout["episode"] = torch.tensor(
-            [online_episode_idx] * len(rollout), dtype=torch.int
-        )
+        rollout["episode"] = torch.tensor([online_episode_idx] * len(rollout), dtype=torch.int)
         online_buffer.extend(rollout)
 
         ep_sum_reward = rollout["next", "reward"].sum()
@@ -188,9 +178,7 @@ def train(cfg: dict, out_dir=None, job_name=None):
             )
             metrics.update(train_metrics)
             if step % cfg.log_freq == 0:
-                log_training_metrics(
-                    L, metrics, step, online_episode_idx, start_time, is_offline=False
-                )
+                log_training_metrics(logger, metrics, step, online_episode_idx, start_time, is_offline=False)
 
             if step > 0 and step % cfg.eval_freq == 0:
                 eval_policy_and_log(
@@ -200,13 +188,13 @@ def train(cfg: dict, out_dir=None, job_name=None):
                     online_episode_idx,
                     start_time,
                     cfg,
-                    L,
+                    logger,
                     is_offline=False,
                 )
 
             if step > 0 and cfg.save_model and step % cfg.save_freq == 0:
                 print(f"Checkpoint model at step {step}")
-                L.save_model(policy, identifier=step)
+                logger.save_model(policy, identifier=step)
 
             step += 1
 
diff --git a/lerobot/scripts/visualize_dataset.py b/lerobot/scripts/visualize_dataset.py
index 107b6a71..fcb4c20e 100644
--- a/lerobot/scripts/visualize_dataset.py
+++ b/lerobot/scripts/visualize_dataset.py
@@ -1,24 +1,22 @@
-import pickle
 from pathlib import Path
 
 import hydra
 import imageio
-import simxarm
 import torch
 from torchrl.data.replay_buffers import (
-    SamplerWithoutReplacement,
-    SliceSampler,
     SliceSamplerWithoutReplacement,
 )
 
 from lerobot.common.datasets.factory import make_offline_buffer
 
+NUM_EPISODES_TO_RENDER = 10
+MAX_NUM_STEPS = 1000
+FIRST_FRAME = 0
+
 
 @hydra.main(version_base=None, config_name="default", config_path="../configs")
 def visualize_dataset_cli(cfg: dict):
-    visualize_dataset(
-        cfg, out_dir=hydra.core.hydra_config.HydraConfig.get().runtime.output_dir
-    )
+    visualize_dataset(cfg, out_dir=hydra.core.hydra_config.HydraConfig.get().runtime.output_dir)
 
 
 def visualize_dataset(cfg: dict, out_dir=None):
@@ -33,9 +31,6 @@ def visualize_dataset(cfg: dict, out_dir=None):
 
     offline_buffer = make_offline_buffer(cfg, sampler)
 
-    NUM_EPISODES_TO_RENDER = 10
-    MAX_NUM_STEPS = 1000
-    FIRST_FRAME = 0
     for _ in range(NUM_EPISODES_TO_RENDER):
         episode = offline_buffer.sample(MAX_NUM_STEPS)
 
@@ -57,9 +52,7 @@ def visualize_dataset(cfg: dict, out_dir=None):
         assert ep_frames.max().item() > 1, "Not mendatory, but sanity check"
         assert ep_frames.max().item() <= 255
         ep_frames = ep_frames.type(torch.uint8)
-        imageio.mimsave(
-            video_path, ep_frames.numpy().transpose(0, 2, 3, 1), fps=cfg.fps
-        )
+        imageio.mimsave(video_path, ep_frames.numpy().transpose(0, 2, 3, 1), fps=cfg.fps)
 
         # ran out of episodes
         if offline_buffer._sampler._sample_list.numel() == 0:
diff --git a/poetry.lock b/poetry.lock
index 2f33580d..14b69206 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -192,6 +192,17 @@ files = [
 [package.dependencies]
 pycparser = "*"
 
+[[package]]
+name = "cfgv"
+version = "3.4.0"
+description = "Validate configuration and produce human readable error messages."
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "cfgv-3.4.0-py2.py3-none-any.whl", hash = "sha256:b7265b1f29fd3316bfcd2b330d63d024f2bfd8bcb8b0272f8e19a504856c48f9"},
+    {file = "cfgv-3.4.0.tar.gz", hash = "sha256:e52591d4c5f5dead8e0f673fb16db7949d2cfb3f7da4582893288f0ded8fe560"},
+]
+
 [[package]]
 name = "charset-normalizer"
 version = "3.3.2"
@@ -420,6 +431,17 @@ url = "https://github.com/real-stanford/diffusion_policy"
 reference = "HEAD"
 resolved_reference = "548a52bbb105518058e27bf34dcf90bf6f73681a"
 
+[[package]]
+name = "distlib"
+version = "0.3.8"
+description = "Distribution utilities"
+optional = false
+python-versions = "*"
+files = [
+    {file = "distlib-0.3.8-py2.py3-none-any.whl", hash = "sha256:034db59a0b96f8ca18035f36290806a9a6e6bd9d1ff91e45a7f172eb17e51784"},
+    {file = "distlib-0.3.8.tar.gz", hash = "sha256:1530ea13e350031b6312d8580ddb6b27a104275a31106523b8f123787f494f64"},
+]
+
 [[package]]
 name = "dm-env"
 version = "1.6"
@@ -741,6 +763,20 @@ antlr4-python3-runtime = "==4.9.*"
 omegaconf = ">=2.2,<2.4"
 packaging = "*"
 
+[[package]]
+name = "identify"
+version = "2.5.35"
+description = "File identification library for Python"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "identify-2.5.35-py2.py3-none-any.whl", hash = "sha256:c4de0081837b211594f8e877a6b4fad7ca32bbfc1a9307fdd61c28bfe923f13e"},
+    {file = "identify-2.5.35.tar.gz", hash = "sha256:10a7ca245cfcd756a554a7288159f72ff105ad233c7c4b9c6f0f4d108f5f6791"},
+]
+
+[package.extras]
+license = ["ukkonen"]
+
 [[package]]
 name = "idna"
 version = "3.6"
@@ -1069,6 +1105,20 @@ doc = ["nb2plots (>=0.7)", "nbconvert (<7.9)", "numpydoc (>=1.6)", "pillow (>=9.
 extra = ["lxml (>=4.6)", "pydot (>=1.4.2)", "pygraphviz (>=1.11)", "sympy (>=1.10)"]
 test = ["pytest (>=7.2)", "pytest-cov (>=4.0)"]
 
+[[package]]
+name = "nodeenv"
+version = "1.8.0"
+description = "Node.js virtual environment builder"
+optional = false
+python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*"
+files = [
+    {file = "nodeenv-1.8.0-py2.py3-none-any.whl", hash = "sha256:df865724bb3c3adc86b3876fa209771517b0cfe596beff01a92700e0e8be4cec"},
+    {file = "nodeenv-1.8.0.tar.gz", hash = "sha256:d51e0c37e64fbf47d017feac3145cdbb58836d7eee8c6f6d3b6880c5456227d2"},
+]
+
+[package.dependencies]
+setuptools = "*"
+
 [[package]]
 name = "numba"
 version = "0.59.0"
@@ -1537,6 +1587,39 @@ tests = ["check-manifest", "coverage", "defusedxml", "markdown2", "olefile", "pa
 typing = ["typing-extensions"]
 xmp = ["defusedxml"]
 
+[[package]]
+name = "platformdirs"
+version = "4.2.0"
+description = "A small Python package for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "platformdirs-4.2.0-py3-none-any.whl", hash = "sha256:0614df2a2f37e1a662acbd8e2b25b92ccf8632929bc6d43467e17fe89c75e068"},
+    {file = "platformdirs-4.2.0.tar.gz", hash = "sha256:ef0cc731df711022c174543cb70a9b5bd22e5a9337c8624ef2c2ceb8ddad8768"},
+]
+
+[package.extras]
+docs = ["furo (>=2023.9.10)", "proselint (>=0.13)", "sphinx (>=7.2.6)", "sphinx-autodoc-typehints (>=1.25.2)"]
+test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=7.4.3)", "pytest-cov (>=4.1)", "pytest-mock (>=3.12)"]
+
+[[package]]
+name = "pre-commit"
+version = "3.6.2"
+description = "A framework for managing and maintaining multi-language pre-commit hooks."
+optional = false
+python-versions = ">=3.9"
+files = [
+    {file = "pre_commit-3.6.2-py2.py3-none-any.whl", hash = "sha256:ba637c2d7a670c10daedc059f5c49b5bd0aadbccfcd7ec15592cf9665117532c"},
+    {file = "pre_commit-3.6.2.tar.gz", hash = "sha256:c3ef34f463045c88658c5b99f38c1e297abdcc0ff13f98d3370055fbbfabc67e"},
+]
+
+[package.dependencies]
+cfgv = ">=2.0.0"
+identify = ">=1.0.0"
+nodeenv = ">=0.11.1"
+pyyaml = ">=5.1"
+virtualenv = ">=20.10.0"
+
 [[package]]
 name = "proglog"
 version = "0.1.10"
@@ -2462,6 +2545,26 @@ h2 = ["h2 (>=4,<5)"]
 socks = ["pysocks (>=1.5.6,!=1.5.7,<2.0)"]
 zstd = ["zstandard (>=0.18.0)"]
 
+[[package]]
+name = "virtualenv"
+version = "20.25.1"
+description = "Virtual Python Environment builder"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "virtualenv-20.25.1-py3-none-any.whl", hash = "sha256:961c026ac520bac5f69acb8ea063e8a4f071bcc9457b9c1f28f6b085c511583a"},
+    {file = "virtualenv-20.25.1.tar.gz", hash = "sha256:e08e13ecdca7a0bd53798f356d5831434afa5b07b93f0abdf0797b7a06ffe197"},
+]
+
+[package.dependencies]
+distlib = ">=0.3.7,<1"
+filelock = ">=3.12.2,<4"
+platformdirs = ">=3.9.1,<5"
+
+[package.extras]
+docs = ["furo (>=2023.7.26)", "proselint (>=0.13)", "sphinx (>=7.1.2)", "sphinx-argparse (>=0.4)", "sphinxcontrib-towncrier (>=0.2.1a0)", "towncrier (>=23.6)"]
+test = ["covdefaults (>=2.3)", "coverage (>=7.2.7)", "coverage-enable-subprocess (>=1)", "flaky (>=3.7)", "packaging (>=23.1)", "pytest (>=7.4)", "pytest-env (>=0.8.2)", "pytest-freezer (>=0.4.8)", "pytest-mock (>=3.11.1)", "pytest-randomly (>=3.12)", "pytest-timeout (>=2.1)", "setuptools (>=68)", "time-machine (>=2.10)"]
+
 [[package]]
 name = "wandb"
 version = "0.16.3"
@@ -2538,4 +2641,4 @@ testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "p
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "4c34065f18b708f6663ce5740011d2062b2995d1eaefbcb664572870827efd7c"
+content-hash = "7878b7e80b73355d98402655a8bf51bab122444555cbe8ae5d0f9f1e2effe4b2"
diff --git a/pyproject.toml b/pyproject.toml
index 7f072148..19276912 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,8 +48,39 @@ opencv-python = "^4.9.0.80"
 diffusion-policy = {git = "https://github.com/real-stanford/diffusion_policy"}
 
 
-
+[tool.poetry.group.dev.dependencies]
+pre-commit = "^3.6.2"
 
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
+
+[tool.ruff]
+line-length = 110
+target-version = "py310"
+exclude = [
+    ".bzr",
+    ".direnv",
+    ".eggs",
+    ".git",
+    ".git-rewrite",
+    ".hg",
+    ".mypy_cache",
+    ".nox",
+    ".pants.d",
+    ".pytype",
+    ".ruff_cache",
+    ".svn",
+    ".tox",
+    ".venv",
+    "__pypackages__",
+    "_build",
+    "buck-out",
+    "build",
+    "dist",
+    "node_modules",
+    "venv",
+]
+
+[tool.ruff.lint]
+select = ["E4", "E7", "E9", "F", "I", "N", "B", "C4", "SIM"]
diff --git a/sbatch.sh b/sbatch.sh
index 52a4df4b..da52c472 100644
--- a/sbatch.sh
+++ b/sbatch.sh
@@ -18,5 +18,5 @@ apptainer exec --nv \
 
 source ~/.bashrc
 conda activate fowm
- 
+
 srun $CMD