[REQUEST] Support for overlaying or building with mms configs

[RealJohnGalt]

It would be nice if there could be support for easily building with mms configs (eg: GrapheneOS/Messaging@18282a3)

Many users cannot use third party messaging apps due to obscure mms breakages on third party apps (and google assumes everyone uses google messages so doesn't have a platform implementation for shipping them globally).

[Maxitendo1]

@RealJohnGalt SimpleMobileTools apps were sold to ad and spyware company. Fork is here:

SimpleMobileTools/General-Discussion#241 (comment)

https://github.com/FossifyOrg