RetroDECK listed every component standalone only. Azahar, Cemu, Dolphin,
MAME, melonDS, PCSX2 and PPSSPP also run through RetroArch: RetroDECK/ES-DE
es_systems.xml at 15e1b236 loads <name>_libretro.so beside each standalone
command, and the cores ship whole from the buildbot nightly
RetroArch_cores.7z (retroarch/component_recipe.json:250-262). Their
libretro layouts, Azahar's save-dir files among them, now reach the pack.