The parchment project seems to be able to handle Z-code/inform/glulx games, and
while think it just makes use of something like javascript to update like a
text area text field, I tested it very quickly, and seemed to work quite usably.
Here's the sort of front-end interface, where you can try i
Found issue now by copying and pasting little bits of source into/out of
page, and it's a _small_ thing that barely makes sense - but sort of does to
a certain extent in that it worked on my local machine but not on linux box.
If interested at all, and if makes much sense at all, after pulling