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Merge pull request #3419 from github/Jeffrey-Luszcz-patch-1
Update legal.md
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@@ -63,7 +63,10 @@ Your project very likely has (or will have) **dependencies**, each of which will
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Dependencies with **permissive licenses** like [MIT](https://choosealicense.com/licenses/mit/), [Apache 2.0](https://choosealicense.com/licenses/apache-2.0/), [ISC](https://choosealicense.com/licenses/isc), and [BSD](https://choosealicense.com/licenses/bsd-3-clause) allow you to license your project however you want.
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Dependencies with **copyleft licenses** require closer attention. Including any library with a "strong" copyleft license like the [GPLv2](https://choosealicense.com/licenses/gpl-2.0), [GPLv3](https://choosealicense.com/licenses/gpl-3.0), or [AGPLv3](https://choosealicense.com/licenses/agpl-3.0) requires you to choose an identical or [compatible license](https://www.gnu.org/licenses/license-list.en.html#GPLCompatibleLicenses) for your project. Libraries with a "limited" or "weak" copyleft license like the [MPL 2.0](https://choosealicense.com/licenses/mpl-2.0/) and [LGPL](https://choosealicense.com/licenses/lgpl-3.0/) can be included in projects with any license, provided you follow the [additional rules](https://fossa.com/blog/all-about-copyleft-licenses/#:~:text=weak%20copyleft%20licenses%20also%20obligate%20users%20to%20release%20their%20changes.%20however%2C%20this%20requirement%20applies%20to%20a%20narrower%20set%20of%20code.) they specify.
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Dependencies with **source-available licenses**, such as the Business Source License [BSL](https://spdx.org/licenses/BUSL-1.1.html) or the Server Side Public License [SSPL](https://en.wikipedia.org/wiki/Server_Side_Public_License), may appear to be under open source licenses but come with usage and business model restrictions. These restrictions may prevent your project from being considered Open Source as defined by the [Open Source Initiative (OSI)](https://opensource.org/).
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Projects often rely on **non-source code content**, such as images, icons, videos, fonts, data files, or other materials, which are governed by their own licenses. As with traditional software dependencies, the licenses these materials range from Commercial to permissive to Copyleft. The [Creative Commons](https://creativecommons.org/share-your-work/cclicenses/), a non-profit organization, created a series of licenses popular for non-source content. Creative Commons licenses range from very permissive [CC0](https://creativecommons.org/publicdomain/zero/1.0/deed.en) to Permissive [CC-BY](https://creativecommons.org/licenses/by/4.0/deed.en) to copyleft [CC-SA](https://creativecommons.org/licenses/by-sa/2.0/deed.en). They also can sometime restrict commercial use by adding a non-commercial (NC) option to these licenses.
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You may also want to consider the **communities** you hope will use and contribute to your project:
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* **Do you want your project to be used as a dependency by other projects?** Probably best to use the most popular license in your relevant community. For example, [MIT](https://choosealicense.com/licenses/mit/) is the most popular license for [npm libraries](https://libraries.io/search?platforms=NPM).
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* **Privacy:** Does your project collect data on users? "Phone home" to company servers? Your legal team can help you comply with company policies and external regulations.
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* **AI** As AI models and functionality become integral to software, it is crucial to understand licensing agreements and relevant legislation controlling their use. Even when a model or service claims to be under a standard open source license, additional terms may impose restrictions, such as preventing abuse or fraud. New legislation is also putting restrictions on the types of systems or actions that can be performed by AI-based software.
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* **Software Bill of Materials** A Software Bill of Materials (SBOM) is a comprehensive list of third-party dependencies, versions, associated licenses, and other metadata. SBOMs are legally mandated in certain countries, industries, or due to contractual obligations. A request for a SBOM often starts the license compliance journey for an organization.
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If you're releasing your company's first open source project, the above is more than enough to get through (but don't worry, most projects shouldn't raise any major concerns).
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Longer term, your legal team can do more to help the company get more from its involvement in open source, and stay safe:

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