Good to know
What does “open source” mean?
In one line
Software anyone can see, use, and build on.
Open source means the inner workings of a piece of software are public — anyone can look at it, use it, and improve it, usually for free. The opposite is “closed,” where a company keeps its recipe secret. You'll hear it a lot in AI; for now it's enough to know it means “open for everyone to build on.”