What is kyuhachige?

KyuHachiGe is a set of portable scripts for Windows that automate the setup of a NEC PC-98 emulation environment. The NEC PC-98 (PC-9801/9821) is a line of Japanese personal computers from the 1980s and 1990s with a large library of games, many of which were never officially translated into English. The toolkit organizes four components: an English-patched PC-98 game library downloaded from the Internet Archive, an optional original Japanese game library (about 80 GB), the RetroArch emulator in portable form, and Playnite, a game library front-end that lists your games with cover art and launch buttons. Everything lives in a single folder you create anywhere on your system. You start by running a batch file, which presents a numbered menu. From there you can check your environment, download the patched game library, check for updates to that library, download Playnite, and download RetroArch. The original (untranslated) game collection is an optional separate download due to its size. For emulation, RetroArch is configured to use the Neko Project II Kai core, a PC-98 emulator available as a RetroArch plugin. Playnite is set up to scan your game folders (which remain zipped, since Playnite can launch games directly from archives) and re-scan automatically each time it opens. Metadata and cover art can be pulled in through Playnite add-ons. The project is described by its author as a personal helper built because usable PC-98 setup guides are difficult to find. It runs on Windows without requiring an installer.