Chapter 9. Licenses, Copyrights, and Patents
The license you select probably won’t have a major impact on the adoption of your project, as long as the license is open source. Users generally choose software based on quality and features, not on the details of the license. Nevertheless, you still need a basic understanding of free software licensing issues, both to ensure that the project’s license is compatible with its goals, and to be able to discuss licensing decisions with other people. Please note, however, that I am not a lawyer, and that nothing in this chapter should be construed as formal legal advice. For that, you’ll need to hire a lawyer or be one.
Terminology
In any discussion of open source licensing, the first thing that becomes apparent is that there seem to be many different words for the same thing: free software, open source, FOSS, F/OSS, and FLOSS. Let’s start by sorting those out, along with a few other terms.
- Free software
Software that can be freely shared and modified, including in source code form. The term was first coined by Richard Stallman, who codified it in the GNU General Public License (GPL), and who founded the Free Software Foundation (http://www.fsf.org/) to promote the concept.
Although “free software” covers almost exactly the same range of software as “open source,” the FSF, among others, prefers the former term because it emphasizes the idea of freedom, and the concept of freely redistributable software as primarily a social movement rather than ...
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