EmuDeck passes Complex_4627v1.03.bin as xemu's flash ROM
(emuDeckXemu.sh:60-61), and xemu's entry Complex_4627.bin states no hash,
only the sizes it maps. The layer matched entries by name or content
only, so without the alias the default name was still asked for. A
hashless entry that checks a size now takes a launcher file of a size
it accepts, when no other entry of that core accepts that size too.
The launcher layer packed a file under the launcher's name whatever the
platform installs: ROCKNIX's xemu config reads hdd/xbox_hdd.qcow2, and
the profile marks that image installed_on rocknix, yet the pack brought
one. A place whose entry the emulator installs on that platform is now
filled by the install, as validation.deliverable has it for the pack.
A names_searched list is one place the launcher fills with the first name it finds, so a core file it would never open once another name of the list is held is not reported missing. A place no declared file and no packed core file fills receives, under the launcher's name, a file the core accepts by content. The layer is applied inside find_undeclared_files, which verify and the pack builder both read, and a test reads their source to keep it there.
Abdessamad Derraz