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· 8 min read

I was at DevFest Nantes 2025, another great edition! Thank you to all the organizers, volunteers, sponsors, speakers and attendees for making it happen.

I had many great discussions about GitHub, DevSecOps, and especially GitHub Copilot and AI for developers in general.

AI for Developers Is Becoming Mainstream​

Many people are now using GitHub Copilot or its competitors. This is great to see — it means AI-assisted coding is now becoming mainstream.

If you are not using AI tools yet, I strongly encourage you to give them a try. They can really help you be more productive, write better code -yes!-, learn faster, and like for mebe happy to code more "stuff".

Nevertheless, I also noticed a lot of confusion and misconceptions about what AI can (and cannot) really do for developers.

Stop Using GenAI for Development Like It’s 2022!​

We’re in 2025, and Copilot is more than 4 years old now!
If you are still using it the same way you did 2 or 3 years ago, you’re missing out!

I often say:

“If you’re using Copilot the same way you were 3–4 months ago, you’re already behind.”

Too many developers still use Copilot only as:

  • a smart autocomplete, or
  • an embedded ChatGPT inside their IDE.

That’s fine for small tasks, but today, with context engineering & spec-driven development, you can do much more.

· 10 min read

GitHub Copilot: How I use it, and Why I love it

Since its launch, GitHub Copilot has been a hot topic in the developer community. Some people love it, some people hate it, and some people are just curious about it. I am part of the first group, and I have been using it for more than a year now. I will not go into the details of how Copilot works, but I will share with you my experience with it, and how it has changed my life as a developer.

Copilot will help developers differently depending on the way they work and the phase of the project they are in. I will try to cover as many use cases as possible, but I will not be able to cover all of them. Here are the main uses cases I have for Copilot

  • Write code faster
  • Create new features much faster
  • Learn new things in context