Banjo-Tooie - native launcher.
What you get: the recompiled game (22,345 PowerPC functions rebuilt as native x86-64), a native Vulkan renderer and native audio, in a small launcher. No game data is included - you point it at your own copy.
Source: your own dump of the Banjo-Tooie Xbox Live Arcade package (title 58410955) - the single LIVE / CON / PIRS file, or a folder of its extracted files. The importer also installs DLC packs.
Run it:
# Linux
tar --zstd -xf banjotooie-launcher-linux-x86_64.tar.zst
cd banjotooie && tools/port_gui.sh # or ./run.sh
# Windows: unzip the windows launcher and run Launcher.bat
Needs a Vulkan GPU driver. CONVERSION.md inside the bundle has the details.