The PS Vita port is based on the console Komplete Edition and includes specific mobile-optimized features:
Use the exact string "pcsb00106 v0100 vpk" (including quotes) in your favorite archive site or search engine. Look for posts from reputable Vita modding communities like r/VitaPiracy or VitaNuova .
The internet is filled with fake .vpk files that contain malware or “bricker” scripts for the Vita. Only download from trusted archival sources.