A Needle in the Haystack: Multi‑Vibe Coding and Self‑Learning with GPT‑5.6 Luna

There is no denying that the newest models, including Astra, are remarkable at what they are designed to do.
But if the broader goal is to empower, not replace, another question matters just as much:
What can someone with limited resources accomplish with GPT‑5.6 Luna?
For many people in Brazil and elsewhere, professional subscriptions are not financially realistic for learning, experimenting, or building personal projects. More affordable models are not merely a backup option. They may be the only sustainable way for someone to keep learning and creating.
I’m especially interested in multi‑vibe coding: using an accessible model continuously across different kinds of work, learning through iteration, and gradually building the ability to think, create, research, and solve problems independently.
This is not only about preparing for a career. There is also a deeper value in using AI for intellectual development and self-learning — expanding what a person can explore with the resources available to them.
So here is the question:

What are people building, learning, and discovering with GPT‑5.6 Luna and other affordable models?