Once you have obtained the PSP2UPDAT.PUP file, you need to install it in the Vita3K emulator. The process is straightforward and nearly identical for all platforms.
The Vita3K emulator itself is open-source and free. The system fonts, while proprietary, are widely distributed for preservation purposes. The community has ensured that these files remain accessible so that history is not lost to digital decay. free download font package vita3k install
Search for on a known open-source archive. Look for a file hash matching: Once you have obtained the PSP2UPDAT