diff --git a/neurons/miner.py b/neurons/miner.py
index 984ceda..b7881d9 100644
--- a/neurons/miner.py
+++ b/neurons/miner.py
@@ -19,7 +19,6 @@
 # Global imports.
 import sys
 import time 
-import wandb
 import torch
 import random
 import asyncio
@@ -180,7 +179,7 @@ def __init__(self):
                     tplr.logger.error(f"Failed to delete {file_path}: {e}")  
 
         # Load checkpoint if it exists
-        self.checkpoint_path = f"checkpoint-V1.pth" if self.config.checkpoint_path is None else self.config.checkpoint_path 
+        self.checkpoint_path = "checkpoint-V1.pth" if self.config.checkpoint_path is None else self.config.checkpoint_path 
         if os.path.exists(self.checkpoint_path):
             tplr.logger.info(f"Loading checkpoint from {self.checkpoint_path}")
             global_step, _ = asyncio.run(tplr.load_checkpoint(
diff --git a/neurons/validator.py b/neurons/validator.py
index d77965d..2047a80 100644
--- a/neurons/validator.py
+++ b/neurons/validator.py
@@ -556,11 +556,11 @@ async def run(self):
                 tplr.logger.info(f"{tplr.P(window, gs_end - gs_start)}[{window_delta_str}]: Finished step.")
                 # Log main metrics
                 wandb.log({
-                    f"loss": step_loss,
-                    f"tokens_per_step": tokens_per_step,
-                    f"tokens_per_second": tokens_per_second,
-                    f"sample_rate": self.sample_rate,
-                    f"utilization": eval_duration / (gs_end - gs_start)
+                    "loss": step_loss,
+                    "tokens_per_step": tokens_per_step,
+                    "tokens_per_second": tokens_per_second,
+                    "sample_rate": self.sample_rate,
+                    "utilization": eval_duration / (gs_end - gs_start)
                 }, step=self.global_step)
                 for uid_i in valid_score_indices:
                     wandb.log({
diff --git a/pyproject.toml b/pyproject.toml
index 79ef417..1541a57 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,6 +38,7 @@ dependencies = [
 [tool.uv]
 dev-dependencies = [
     "pytest>=8.3.3",
+    "ruff>=0.8.1",
 ]
 
 [project.urls]