https://www.rafaelvzago.com/en/tags/licencas/Recent content in Licencas on Rafael ZagoHugoen-US© Rafael ZagoFri, 24 Jul 2026 16:16:10 -0300https://www.rafaelvzago.com/en/posts/carreira-com-software-livre/Thu, 07 Dec 2023 00:00:00 -0300https://www.rafaelvzago.com/en/posts/carreira-com-software-livre/<p><a href="https://www.rafaelvzago.com/assets/img/headers/carreira-com-softeware-livre-hero.webp" class="img-lightbox" data-lightbox> <img src="https://www.rafaelvzago.com/assets/img/headers/carreira-com-softeware-livre-hero.webp" alt="" loading="lazy" decoding="async"> </a></p> <h2 id="a-career-in-free-software--what-it-is-and-how-to-start">A career in free software — what it is and how to start</h2> <h2 id="introduction">Introduction</h2> <p>Free Software is a movement that promotes the freedom to use, study, modify, and distribute software. It rests on four essential freedoms:</p> <ol> <li>The freedom to run the program for any purpose (freedom 0).</li> <li>The freedom to study how the program works and adapt it to your needs (freedom 1). Access to the source code is a prerequisite for this freedom.</li> <li>The freedom to redistribute copies so you can help others (freedom 2).</li> <li>The freedom to improve the program and release your improvements so the whole community benefits (freedom 3). Access to the source code is a prerequisite for this freedom.</li> </ol> <h2 id="types-of-free-software-licenses">Types of free software licenses</h2> <p>There are many free software licenses. The most common ones are GPL, LGPL, MIT, Apache, BSD, and Mozilla. Each has its own traits and constraints, but all of them protect the four essential freedoms of the Free Software movement.</p>