This is a pretty good explanation. I think it maybe undersells the importance of the REPL a bit. (I'm not a Forth expert, but I did write StoneKnifeForth, a self-compiling compiler in a Forth subset, and I've frequently complained about the quality of Forth explainers.)
>I think it maybe undersells the importance of the REPL a bit.
Howo? Or would you agree that value is perhaps a more suitable word than importance? For me I think these articles have such a tendency to fixate on the strengths of Forth to the extent that they have reduced Forth to those strengths in the eyes of many. TFA does a fair job of avoiding this and shows Forth more as a powerful and flexible general purpose language than a very niche language, but I think it still focuses a bit much on the strengths at cost of the general.
You are a Forth expert compared to me and probably most of HN, so try and keep that in mind with your response if you could.
Edit: I am probably asking for insight into your workflow with Forth, but maybe not?