Are there any practical and somewhat popular stack-based/concatenative languages? 'Popular' here doesn't need to mean that popular, something on a similar usage level to some Lisp dialects, or functional languages like Haskell.
factor seems to be doing pretty well, and so is of course forth.
Haven’t checked up on Factor in quite a while—have others picked up the work after Pestov was spirited away to Apple and locked in a room with nothing except Swift? That’s some good news if so.