Schera Wyss 👽 on Twitter: "PKGi for PS3 and PKGj for PSVita will let you install any game from any region with one click. DLCs, PSX + PS2 classics, and even demos
PKGj - Download and Install PS Vita Backups Without a PC - CFWaifu
Sony PS VITA Henkaku PKGj games list - YouTube
GitHub - blastrock/pkgj: pkg download & installation directly on Vita
Use PKGj to Back-up Vita Games on Hacked Vita | PS Vita Mod