Talk from KansasFest 2017. Michael Sternberg talked about building an Inform 6 game and getting it into an Apple 2 disk, with Infocom’s Apple 2 Z-interpreter, so that it’s a playable game.
16kram.com/2017/07/20/an-apple- … or-inform/
(Video forthcoming, I am told.)
I believe you can already watch the talk in the recorded livestream:
https://www.youtube.com/watch?v=KzLGC6Tz1Pc#t=08h06m07s
(The talk starts 8 hrs, 6 min, and 7 secs into the video runtime.)
I think you might be able to do a TRS80 version as well. I’ve had some success ccross compiling modern code for one (say a 48K machine) using SDCC. The trick is to change nearly all your code to use “char”. 
PS. https seems to have stopped?
Follow-up, eight years later:
Jeff Epler couldn’t find Michael Sternberg’s source code, so he recreated the Interl tool in Python.
Oh, the 2017 source code was available on the kansasfest site, just a bit buried. Now mirrored at the link above: https://media.unpythonic.net/emergent-files/01765766083/interlz5-001.zip
this is great. i had found an old version of this somewhere long forgotten but had to boot into linux to use it. my life is now simplified.
now we just need a modern apple ][ interpreter (with undo, extended memory, etc). it would be great to somehow combine ‘pitch dark’ and ‘ozmoo’.