> For the complete documentation index, see [llms.txt](https://four-meme.gitbook.io/four.meme/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://four-meme.gitbook.io/four.meme/openfour.md).

# OpenFour

- [About OpenFour](https://four-meme.gitbook.io/four.meme/openfour/about-openfour-en.md)
- [Royalty](https://four-meme.gitbook.io/four.meme/openfour/royalty-en.md)
- [Universal Subscription](https://four-meme.gitbook.io/four.meme/openfour/universal-subscription-en.md)
- [Royalty (CN)](https://four-meme.gitbook.io/four.meme/openfour/royalty-cn.md)
- [关于 OpenFour (CN)](https://four-meme.gitbook.io/four.meme/openfour/about-openfour-cn.md)
- [Universal Subscription（通用订阅)](https://four-meme.gitbook.io/four.meme/openfour/universal-subscription-cn.md)