I’m still observing this thread and of course the Github repo.
If there had been more interest in Zag, I might have gone ahead and ported it to Android. But it is a lot of work for only a handful potential users.
All the code for the interpreter and Glk/Glulx is porperly separated from the GUI. So all that would be necessary, is to write a new GUI for Android.
If anyone wants. to cooperate on that, then I’m still game.