Not really possible, with PS3 all the games use their own servers provided by the developers, you'd have to emulate those servers for each game.
Only reason xlink kai and others work is because they use system link, where no outside server is involved.
This was discussed back with Xbox 1 (and 360...), the same problem came up and people realized there's no point. Either buy yourself a new PS3 for online or stick with xlink.
A question like this appears most every week, it would be good if somebody could sticky what I just explained above.
PSIDPatch - http://bit.ly/psidpatch
xRegistry Editor - http://bit.ly/xregistry
Playstation 3 Update Repo - http://bit.ly/iR2iXh
People, stop hating on Math & Co. If it wasn't for them we'd be nowhere, so what if they have their secrets? Remember, they could of just decided not to show anything