Observability. Agentic AI. Platform Engineering.

By Dimitri Bellini • Insights

Good morning everyone, and welcome back to Quadrata! It’s Dimitri Bellini, and as we stand at the threshold of a new year, it’s the perfect time to look back. I hope you all had a wonderful Christmas, filled with good company and great gifts. Now, let's dive into the technologies that truly impressed me in 2025. This is my personal highlight reel of the year, and I'm eager to hear what you think about these game-changers.

This year, several open-source projects took massive leaps forward, solidifying their place as essential tools for professionals and hobbyists alike. Here are the ones that stood out to me.

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By Dimitri Bellini • Insights

Good morning everyone, Dimitri Bellini here, back on Quadrata, my channel dedicated to the world of open source and IT. This week, we're diving back into artificial intelligence, but with a practical twist that could change the game for many, especially in the world of business analytics.

I stumbled upon a fascinating open-source solution called Wren AI. Its promise is simple yet powerful: to let you explore complex databases and extract insights using plain, natural language. No more wrestling with intricate SQL queries just to get a simple answer. Intrigued? Let's take a look at what it can do.

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By Dimitri Bellini • Insights

Good morning, everyone! Dimitri Bellini here, back on my channel, Quadrata, where we explore the fascinating world of open source and IT. If you've been following along, you know we've spent a lot of time diving into Large Language Models (LLMs) for tasks like summarizing topics and answering questions. But today, we're venturing into a different, more visual side of artificial intelligence: the creation of images.

We're going to explore a powerful, node-based graphical interface called ComfyUI. This open-source tool allows you to build sophisticated workflows for generating AI images using Stable Diffusion models. Forget complex code; we're talking about a visual playground for your creativity.

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By Dimitri Bellini • Insights

Good morning, everyone! Dimitri Bellini here, and welcome back to Quadrata, my channel dedicated to the world of open source and IT. If you're a regular viewer, you know how much I love exploring powerful, community-driven tools. And if you're new, please consider subscribing to join our growing community!

This week, we're revisiting a product I'm incredibly excited about: Kestra. I covered it before, but now it has hit a major milestone with its 1.0 release, and the new features are too good not to share. Kestra has officially reached maturity, evolving into a tool that's not just powerful but also incredibly intelligent. Let's dive in!

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By Dimitri Bellini • Insights

Good morning, everyone! Dimitri Bellini here, and welcome back to Quadrata. For a while now, I've been waiting for something genuinely new to discuss in the world of artificial intelligence. The on-premise, open-source scene has been buzzing, but largely dominated by excellent models from the East. I was waiting for a major American player to make a move, and finally, the moment has arrived. OpenAI, the minds behind ChatGPT, have released not one, but two completely open-source models. This is a big deal, and in this post, I’m going to break down what they are, what they can do, and put them to the test myself.

OpenAI has released two "open-weight" models, which means we have access to the model's core infrastructure and the data it was trained on. This is fantastic news for developers, researchers, and hobbyists like us, as it allows for deep customization. The two new models are:

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