Hey ahoj Ganimoth!
Thanks for your kind words and sharing the picture ! short answer your project sounds lovely, and yes it's OK! Without handheld console this game would not even exist so that's awesome to see this picture.
If you agree I would just like to have some testing/feedback somehow, so I could tweak a version for this kind of port if needed... Also I have a RG35XX at disposal, is that supported by your project ?
I'll try to ping you on github or somewhere. Thanks ! Na zdraví!