> For the complete documentation index, see [llms.txt](https://cheats.philkeeble.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cheats.philkeeble.com/mainframes.md).

# Mainframes

- [HP Nonstop](https://cheats.philkeeble.com/mainframes/hp-nonstop.md)
- [IBM z/OS](https://cheats.philkeeble.com/mainframes/ibm-z-os.md)