Hacking [Q] Change NDS games region/language in Luma3DS?

[Stremon]

Hi guys,

Recently I've switched to Luma3DS on my JPN N3DS.
Before installing Luma3DS and A9LH, to launch games and especially NDS games in my language (french), I simply changed the region of my emunand to EU.

Now for most games, I am using the homebrew LumaLocaleSwitcher, which works great.
But sadly it doesn't work for my NDS games and the DSTwo card.

I as wondering, is there any way to change the language of NDS games without changing the region of my sysnand (https://3ds.guide/region-changing)?
I know there are some issues with region changing the sysnand, that's why I would prefer avoiding it.

I saw some people patching only the home menu titles to change the language of the UI, would that do the trick too ?

Thanks.