I am aware that XBOX emulators are somewhat not the greatest but (BZZ):
How about that? https://xqemu.com
"XQEMU is an open-source, cross-platform, low-level system emulator for the original Xbox and Sega Chihiro, built on the excellent QEMU project.
Audio does not work, and graphics are slow and buggy, but progress is being made! Please visit the issues page on GitHub for the current open and active tasks.
Check out the screenshots to see the current state of things, or click here to get started running XQEMU!"