xyfny - a z-machine intepreter
This is based closely upon theinternetftw's xyppy.
Where that is geared towards an interactive simulation of a good ol'-fashioned Z-machine experience, this is intended to be plugging into event-driven systems (for instance, chat systems like Slack).
All of the terminal handling is stripped out. Rather, the z-machine runs until it attempts to read input from the user. At that point, it'll exit with an interrupt - unless there is user input pending in its buffer.
The basic gist of how this might be used:
# Initialise
env = make_env(file)
intro = do_step(env, line)
# Output the introductory text to the user
output(intro)
# On receiving an input event from the user:
response = do_step(env, event_text)
output(response)