100 emulator names the two platforms run had no profile, so their packs carried nothing for them. Each was read from the platform's own launcher or scriptmodule: the same program as an existing profile takes the name in cores:, a different build gets its own profile read from that version, a launcher or self-contained game goes to remove_cores, and the rest are new profiles written from their source or shipped binary. The files they need that the collection lacked are collected from the upstream distributions. Bungie and splitwolf trees are read by path and stay out of dedup.
Basilisk II opens a file named ROM, checks its size, its version word and the code PatchROM rewrites, and no hash. By name the only candidate was the 128 KB Apple IIGS ROM, which the size gate rejects, so the pack shipped nothing. The collection's mac.rom (Performa/Quadra 630, version 0x067c) passes every gate, and the entry now names it as an alias. KEGS and GSplus keep the IIGS file.
Abdessamad Derraz