Most likely what is documented at https://sqlite.org/copyright.html https://sqlite.org/copyright.html > SQLite is open-source, meaning that you can make as ma

Most likely what is documented at https://sqlite.org/copyright.html https://sqlite.org/copyright.html > SQLite is open-source, meaning that you can make as many copies of it as you want and do whatever you want with those copies, without limitation. But SQLite is not open-contribution. In order to keep SQLite in the public domain and ensure that the code does not become contaminated with proprietary or licensed content, the project does not accept patches from people who have not submitted an affidavit dedicating their contribution into the public domain. > All of the code in SQLite is original, having been written specifically for use by SQLite. No code has been copied from unknown sources on the internet. They want to be freaking sure they are the original authors / they can release the code in the public domain. Public domain is tricky and does not exist in the same way everywhere. Where I live, you just can't decide to put something in the public domain, you need to use something like CC0 [1] [1] https://creativecommons.org/share-your-work/public-domain/cc0/ https://creativecommons.org/share-your-work/public-domain/cc...