log_write was the only vsnprintf user and pulled in newlib's printf,
dtoa, malloc and soft-float code (~44 KB). The payload now fits the
RCM limit again (146800 -> 102801 bytes); the build fails if it grows
past it. debug.ini log=1 writes sd:/config/omninx/install.log.
Copy sd:/extras from the pack, prompt for RAM and Hekate/AMS choices, persist them in config.ini, apply Pro/8GB payloads, then remove extras/. Use safe config.ini I/O and Joy-Con input clearing between menus.