I thought they gave up on Quest JS?
QuestJS and QuestKt seem to have gone.
Some people seem to be saying "QuestJS" to mean Quest 6, which might add to the confusion, as they seem to be very different projects.
I've been thinking of building a JS engine that will run older Quest games, but that's still on the drawing board.
This is Quest 6: https://github.com/ThePix/QuestJS
It is coming soon. It is called QuestJS on GitHub, but it is Quest 6.
It will also have an editor which will run on any platform: https://github.com/ThePix/QEdit
The editor isn't fully operational yet, but it will read in aslx (the current Quest) files as well as asl6 (which is basically JSON).
This is the old, never-completed, doesn't work, totally different quest-js: https://github.com/textadventures/quest-js
QuestKit was never completed either: https://github.com/textadventures/questkit