As for build 679, I couldn't find any information on a specific build number for Pokémon Sapphire. It's possible that you may be referring to a ROM (Read-Only Memory) hack or a modified version of the game, which could have its own unique build number.
Later hacks tend to "over-buff" the player (giving Legendaries before the 3rd gym). Build 679 maintains a punishing, SMT-esque difficulty where every trainer on Victory Road has IV/EV trained Pokémon. It respects your time while demanding strategic mastery. pokemon star sapphire build 679
: When using manual tools like HackingToolkit3DS, you must copy the main "romfs" data first, then overwrite it with the specific files from the "679 Build" folder. As for build 679, I couldn't find any
You need a decrypted .cia or .3ds ROM of base Pokémon Alpha Sapphire . Build 679 maintains a punishing, SMT-esque difficulty where
Since Pokemon Star Sapphire Build 679 is a ROM hack, it requires a specific setup to run. Players typically use the Citra emulator on PC or Android, or a hacked Nintendo 3DS console running Luma3DS firmware. Because Build 679 is a "patch" rather than a standalone game file, you must own a clean .3ds or .cia dump of Pokemon Alpha Sapphire to apply the hack.
The is a specific installation option for the Pokémon ROM hack Star Sapphire