Homebrew Persistent Specific Game Mods? Also, Safety?

[Plasmaster09]

I happen to have an RCM-unpatched Switch and may end up hacking it for the purpose of using mods for something like, for example, Sonic Mania, or other offline-only games. I know that CFW itself isn't persistent on Switch without hardmods, but is there a way to permanently (or at least in and out of CFW) mod an installed title? If so, is there a risk of that resulting in a ban despite it being offline only?

 

[Draxzelex]

You need CFW to load mods and CFW is not persistent so...

 

[Plasmaster09]

I figured there might be a way to permanently mod the rom itself, a la a classic rom hack.
That's more so what I'm asking.

 

[Draxzelex]

I don't know what you're talking about as Switch cartridges are read-only. Older games just may have had less checks much like the devices they ran on.

 

[Plasmaster09]

...I'm talking about digitally installed titles. The ones I care to mod at the moment are digital (at least in my case).

 

[Draxzelex]

Same issue. You cannot permanently modify any game files on the Switch.

 

[Plasmaster09]

Well, that's a bummer.
I figured there might be a way to extract, mod and recompile the game and just replace it with the modded one without Nintendo noticing lol