I didn't see it linked from the article, Jon Purdy has a great talk about this too: "Concatenative Programming: From Ivory to Metal" (2017)
https://www.youtube.com/watch?v=_IgqJr8jG8M
There's also "A Conversation with Manfred von Thun" http://archive.vector.org.uk/art10000350 which is worth reading (IMO) if you're interested in concatenative languages. He's the creator of Joy.
I've been working with Joy over the last few years now and I really think there's something there. It seems to combine the best features of both Forth and Lisp.
My own project is here: https://joypy.osdn.io/ It includes interpreters in Python, Prolog, and Nim (and a start on Rust) and some explorations of compilers and type inference/checking written in Prolog.
There's also "A Conversation with Manfred von Thun" http://archive.vector.org.uk/art10000350 which is worth reading (IMO) if you're interested in concatenative languages. He's the creator of Joy.
I've been working with Joy over the last few years now and I really think there's something there. It seems to combine the best features of both Forth and Lisp.