the relevant copyleft landscape: - [Unlicense](https://unlicense.org/ https://unlicense.org/) - [What The Fuck You Want](http://www.wtfpl.net/ http://www.wtfp

the relevant copyleft landscape: - [Unlicense](https://unlicense.org/ https://unlicense.org/) - [What The Fuck You Want](http://www.wtfpl.net/ http://www.wtfpl.net/) - [Public Domain](https://creativecommons.org/share-your-work/public-domain/ https://creativecommons.org/share-your-work/public-domain/) - [0BSD](https://opensource.org/licenses/0BSD https://opensource.org/licenses/0BSD) You can find more on tl;dr:legal https://tldrlegal.com/licenses/tags/Copyleft https://tldrlegal.com/licenses/tags/Copyleft