Shared Memory File?

Does anyone know how to setup a shared memory file in Xojo.
Hopefully portable across platforms?

are you talking like a “RAM disk”
or an in-memory SQLite Database?

and shared inside a single app or across multiple ones

MBS has a plugin:

Yes, please look into FileMappingMBS.CreateSharedMemory function.

and example for sharing between two apps. Server:

and client:

Thanks all.