diff --git a/.gitignore b/.gitignore
index 1c09dc2..4f61cd2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,3 +35,5 @@ playwright-report/
 test-results/
 
 runongpu-chrome-profile/
+
+.ruff_cache/
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index d27b4c9..3325438 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,7 @@
 name = "runongpu"
 version = "1.0.2"
 description = "A CLI tool that runs GitHub projects on free cloud GPUs"
-requires-python = ">=3.12"
+requires-python = ">=3.10"
 readme = "README.md"
 
 # Runtime dependencies for the CLI.
diff --git a/runongpu.txt b/runongpu.txt
index 9dd96ba..b4a81bf 100644
--- a/runongpu.txt
+++ b/runongpu.txt
@@ -31,9 +31,9 @@
 [setup]
 
 [build]
-cd cuda/vector-add && nvcc main.cu -o vector_add
+nvcc test_cuda.cu -o test_cuda
 
 [test]
 
 [run]
-cd cuda/vector-add && ./vector_add
\ No newline at end of file
+./test_cuda
\ No newline at end of file
diff --git a/runongpu/cli.py b/runongpu/cli.py
index 82a3a4e..3477749 100644
--- a/runongpu/cli.py
+++ b/runongpu/cli.py
@@ -4,11 +4,17 @@
 # Prints styled terminal output for a better CLI experience.
 from rich.console import Console
 
-# Project helpers for saving local config, creating runongpu.txt, and loading user settings.
-from runongpu.config import create_runongpu_template_file, get_folder_name_from_repo_url, save_notebook_url, save_repo_url, load_config
 from runongpu.colab import open_colab
-from runongpu.parser import parse_config
 
+# Project helpers for saving local config, creating runongpu.txt, and loading user settings.
+from runongpu.config import (
+    create_runongpu_template_file,
+    get_folder_name_from_repo_url,
+    load_config,
+    save_notebook_url,
+    save_repo_url,
+)
+from runongpu.parser import parse_config
 
 app = typer.Typer()
 console = Console()
@@ -16,10 +22,9 @@
 
 @app.command()
 def doctor():
-    
-    # Verifies that the user's local RunOnGPU setup has the required pieces installed.
-    console.print("[bold cyan]Checking RunOnGPU setup...[/bold cyan]")
+    """Verifies that the user's local RunOnGPU setup has the required pieces installed."""
 
+    console.print("[bold cyan]Checking RunOnGPU setup...[/bold cyan]")
     console.print("[green]✓ CLI is running[/green]")
     console.print("[green]✓ Typer is installed[/green]")
     console.print("[green]✓ Rich is installed[/green]")
@@ -31,10 +36,11 @@ def doctor():
         console.print("[yellow]Run: runongpu init[/yellow]")
     else:
         console.print("[green]✓ Repo URL is saved[/green]")
-        console.print(f"[green] Repo URL: {saved_config["repo_url"]}")
+        console.print(f"[green]✓ Repo URL: {saved_config['repo_url']}[/green]")
 
     try:
-        import playwright
+        import playwright  # noqa: F401
+
         console.print("[green]✓ Playwright is installed[/green]")
     except ImportError:
         console.print("[red]✗ Playwright is not installed[/red]")
@@ -43,7 +49,8 @@ def doctor():
 
 @app.command()
 def init():
-    # Store the GitHub repo that RunOnGPU should clone inside Colab.
+    """Save the repository configuration and create runongpu.txt."""
+
     repo_url = typer.prompt("Enter your Github repo URL")
 
     console.print("[yellow]Deriving folder name[/yellow]")
@@ -60,7 +67,8 @@ def init():
 
 @app.command()
 def config():
-    # Show the saved local settings without opening Colab.
+    """Show the saved local settings without opening Colab."""
+
     saved_config = load_config()
 
     if saved_config is None:
@@ -80,7 +88,14 @@ def config():
 
 @app.command()
 def run():
-    # Main workflow: parse project commands, open Colab, write the notebook cell, and save the notebook URL.
+    """
+    Main workflow:
+    - parse project commands,
+    - open Colab,
+    - write the notebook cell,
+    - save the notebook URL.
+    """
+
     saved_config = load_config()
 
     if saved_config is None:
@@ -105,4 +120,4 @@ def run():
 
 
 if __name__ == "__main__":
-    app()
\ No newline at end of file
+    app()
diff --git a/runongpu/config.py b/runongpu/config.py
index 26d84be..848775f 100644
--- a/runongpu/config.py
+++ b/runongpu/config.py
@@ -4,6 +4,7 @@
 
 import json
 from pathlib import Path
+
 from rich.console import Console
 
 console = Console()
@@ -16,12 +17,9 @@
 
 
 def save_repo_url(repo_url: str, folder_name: str) -> None:
+
     CONFIG_DIR.mkdir(exist_ok=True)
-    config = {
-        "repo_url": repo_url,
-        "notebook_url": "",
-        "folder_name": folder_name
-    }
+    config = {"repo_url": repo_url, "notebook_url": "", "folder_name": folder_name}
 
     # Persist the selected project so future `runongpu run` calls know what to clone.
     with open(CONFIG_FILE, "w", encoding="utf-8") as file:
@@ -58,7 +56,6 @@ def create_runongpu_template_file() -> None:
     txt_path = Path("runongpu.txt")
 
     if not txt_path.exists():
-
         txt_path.write_text(
             """# RunOnGPU Configuration
 #
@@ -102,10 +99,12 @@ def create_runongpu_template_file() -> None:
         )
         console.print("[green]✓ Added runongpu.txt to the repo. [/green]")
     else:
-        console.print("[yellow]runongpu.txt already exists. Good job! Proud of you! [/yellow]")
+        console.print(
+            "[yellow]runongpu.txt already exists. Good job! Proud of you! [/yellow]"
+        )
 
 
 def get_folder_name_from_repo_url(repo_url: str) -> str:
     # Git clones repositories into a folder named after the repo, so derive that
     # folder name from the URL instead of asking the user to type it manually.
-    return repo_url.rstrip("/").split("/")[-1].replace(".git", "")
\ No newline at end of file
+    return repo_url.rstrip("/").split("/")[-1].replace(".git", "")
diff --git a/runongpu/parser.py b/runongpu/parser.py
index 5db8801..5edb329 100644
--- a/runongpu/parser.py
+++ b/runongpu/parser.py
@@ -43,4 +43,4 @@ def parse_config() -> dict:
 
         config[current_section].append(line)
 
-    return config
\ No newline at end of file
+    return config
diff --git a/tests/test_config.py b/tests/test_config.py
index a8e6eea..e4508c6 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -25,4 +25,4 @@ def test_get_folder_name_from_url_with_trailing_slash():
         "https://github.com/MashrafeeAryan/runongpu-examples/"
     )
 
-    assert result == "runongpu-examples"
\ No newline at end of file
+    assert result == "runongpu-examples"
diff --git a/tests/test_config_persistance.py b/tests/test_config_persistance.py
index 92eeb70..6539799 100644
--- a/tests/test_config_persistance.py
+++ b/tests/test_config_persistance.py
@@ -40,4 +40,4 @@ def test_save_notebook_url_updates_existing_config(tmp_path, monkeypatch):
 
     assert result["repo_url"] == "https://github.com/MashrafeeAryan/RunOnGPU.git"
     assert result["folder_name"] == "RunOnGPU"
-    assert result["notebook_url"] == "https://colab.research.google.com/drive/test"
\ No newline at end of file
+    assert result["notebook_url"] == "https://colab.research.google.com/drive/test"
diff --git a/tests/test_parser.py b/tests/test_parser.py
index 6b4ba11..d66276e 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -92,4 +92,4 @@ def test_command_before_section_raises_error(tmp_path, monkeypatch):
     monkeypatch.chdir(tmp_path)
 
     with pytest.raises(ValueError, match="Command found before any section header"):
-        parse_config()
\ No newline at end of file
+        parse_config()
diff --git a/tests/test_template.py b/tests/test_template.py
index 5574976..d7c4795 100644
--- a/tests/test_template.py
+++ b/tests/test_template.py
@@ -22,7 +22,9 @@ def test_create_runongpu_template_file(tmp_path, monkeypatch):
     assert "[run]" in contents
 
 
-def test_create_runongpu_template_file_does_not_overwrite_existing_file(tmp_path, monkeypatch):
+def test_create_runongpu_template_file_does_not_overwrite_existing_file(
+    tmp_path, monkeypatch
+):
     # Existing user configs should be preserved instead of overwritten.
     monkeypatch.chdir(tmp_path)
 
@@ -31,4 +33,4 @@ def test_create_runongpu_template_file_does_not_overwrite_existing_file(tmp_path
 
     create_runongpu_template_file()
 
-    assert template_file.read_text(encoding="utf-8") == "[run]\npython main.py\n"
\ No newline at end of file
+    assert template_file.read_text(encoding="utf-8") == "[run]\npython main.py\n"