"we'd", you mean in a collapse scenario? Forths are, by nature, "collapse-friendly", but one particularity with Collapse OS and Dusk OS is that they are fully self-hosted. This includes the tools necessary to improve upon themselves.

From a quick glance, it looks like BogdanTheGeek's Forth is written in C, which means that it's not self-hosted. If all you have is that disposable vape with this Forth in it, you lack the tools to deploy it on another machine or to improve it in place.

One could also port Collapse OS to ARM. I guess it wouldn't be a very big effort.

Good points! Really, I should start with learning Forth on the devices I have first, before getting to concerned about others. ARM does seem like a useful target though, given that they're basically everywhere these days.