It's worth noting that you can target the Z-Machine (which gets you nice web platforms like Parchment) without using Inform as your source language. I informally maintain (I did not originally write) a C compiler for the Z-Machine, which I have used to port several games of a similar vintage: https://quuxplusone.github.io/Advent

It occurs to me that it would be nifty to make a BASIC compiler for the Z-Machine.