sqlite3 in CodeIgniter?

Is there any way to use sqlite3 with CI? I've previously used the sqlite3 pdo drivers, which had to manually be installed to the /system/database/drivers folder, but I was hoping there's another way to do it without altering the /system folder (wh开发者_JAVA百科ich is generally a bad idea because you'll lose your changes when you update CI, which I'm going through right now)

No. You can't implement a core change to a database driver. There's no way around modifying /system.