@d6 Oh! They've added support to lambdas too! Wonderful :)
https://github.com/zzo38/uxn38/commit/feba063ba18b9af734bd791f137977713144405e
The implementation of the BUILD-STACK word in the paper linked above is about the same thing, word for word(except that we're building a symbols file) than the uxnasm/drifblim implementation.
https://git.sr.ht/~rabbits/drifblim/tree/main/item/src/drifblim.tal#L266