profile

The Friday Loop

Killing off a SaaS Product is Harder Than You Think | Issue #26

Published 12 months ago • 2 min read

Hi there,

​

Killing a product is tougher than it looks. It’s not just about pulling the plug, it’s about doing it right—for your users, your team, and yourself.

​

In today’s video, I share 5 major lessons from shutting down my last SaaS product, and trust me, it wasn’t all smooth sailing.

​

If you’ve ever had to make a tough choice between projects, or felt like your hard work wasn’t paying off, this one’s for you. I even share a mindset shift that helped me see “failure” differently—and it might just change how you look at your own projects! 🚀✨
​
Enjoy the video and happy coding!

​

Cheers,

Arjan
​
P.S. I’ve got a little BONUS at the end of the video! 👏

# News

116 Malware Packages Infecting Windows and Linux Systems

In the fast-paced world of open-source development, security risks can sometimes slip through the cracks. 🚨

This eye-opening article by Ravie Lakshmanan from The Hacker News reveals the discovery of 116 malicious packages on PyPI—one of the most trusted repositories for Python developers. How did these malware-laden packages make it through, and what can developers do to protect themselves?

Stay informed and learn more about this critical issue here to keep your projects safe! 🛡️

Understanding Python's GIL

I’ve covered Python’s Global Interpreter Lock (GIL) in my videos a few times recently, but if you missed it, you can catch up here. 📹

Now, if you’re looking to dive even deeper, Real Python has launched an entire course on understanding the GIL! For anyone interested in Python’s internals and how the GIL impacts performance, this is a great resource. Check it out here. 🐍✨

# Community

Curious about CQRS (Command and Query Responsibility Segregation) in Python? 💡

A great discussion is happening on the ArjanCodes Discord server! It started with a question on implementing CQRS using Flask and MongoDB, but has evolved into a deep dive into Domain-Driven Design (DDD), microservices, and managing consistency in distributed systems.

If you’re looking to understand how these concepts fit together and want to explore resources and practical examples, you won’t want to miss this conversation.

Do you enjoy my content on YouTube and would you like to dive in deeper? Check out my online courses below. They've helped thousands of developers take the next step in their careers.

🚀 The Mindset Online Course Series

The goal of this series is to help junior developers grow their skills to become senior developers faster.

💥 Other Courses

💡 If you’re part of a development team at a company, I offer special packages for companies that give your team the tools to consistently write high-quality code and dramatically increase your team's productivity.

​Unsubscribe | Send by ArjanCodes

Wolvenplein 25, Utrecht, UT 3512 CK

The Friday Loop

by ArjanCodes

Every Friday, you'll get a recap of the most important and exciting Python and coding news. The Friday Loop also keeps everyone posted on new ArjanCodes courses and any limited offers coming up.

Read more from The Friday Loop

Hi there, Have you ever found yourself writing functions like this? def render_article(article_id, db, logger, user, config, feature_flags, etc): …and then passing the same parameters through five different layers of your app? In my latest video, I walk through a realistic Python example and show how to fix this mess using the Context Object Pattern. I’ll start with the "before" version, refactor step by step, and explore: How to group related dependencies using a context object When this...

5 days ago • 1 min read

Hi there, This week’s video is all about uv workspaces, and why they’ve completely changed the way I manage Python projects. In the video, I walk you through a real-world example: I build a CLI tool and a FastAPI API that both fetch and summarize news headlines using OpenAI. But the real lesson is in how the project is structured. I show you how to share a local package between apps, define common dependencies like openai or httpx only once. And you can manage everything using uv’s workspace...

12 days ago • 1 min read

Hi there, When I see an if-statement with multiple elifs in my code, it almost always triggers an investigation. Is there some way to rewrite this to make the logic simpler? Is there a chance that in the future I'll need to add even more complexity? If so, I'll try to redesign the code so that I don't need that chain of if-elif statements. In this week’s video, I cover a design pattern that helped me eliminate many of those chains from a project + at the same time made the code easier to...

19 days ago • 1 min read