People use "open source" to mean free, or "the code is on GitHub," or just vaguely good and community-minded. Those overlap with the real meaning, but none of them is it. Open source software is software whose license gives you the right to use it for any purpose, read the source code, change it, and share it, including your changed version. The Open Source Initiative keeps the formal definition and a list of licenses that meet it. The key word is rights. It's not about whether you can see the code. It's about what you're legally allowed to do with it. That distinction matters more than it…
Open Source Is About the License, Not the Price
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