Note: This article was inspired by a video called What is Open Source explained in LEGO from 10 years ago. The video used LEGO to explain open source in a simple way. I wanted to build on that idea by using LEGO to explain the different types of open source licenses.
Imagine you have a giant box of Lego bricks. You love creating all sorts of things—spaceships, castles, robots—and you often invite your friends over to build together. Sometimes, you come up with an amazing creation and want others to enjoy it too. But you also want to make sure everyone plays fair and knows how they can use your designs. That's where open source licenses come into play.
Just like you might have different rules for sharing your Lego creations, open source licenses come in two main types: permissive and copyleft.
Your friend Alex, takes your Lego castle and transforms it into a futuristic fortress. He decides to display it at a local event without mentioning you. While you might wish he gave you credit, your "do what you want" rule means he's allowed to do that. Your castle idea has inspired new creations, even if you don't see the direct benefits.