The K family of languages hew very closely to versions written by Arthur Whitney who famously rewrites the entire codebase from scratch with each major revision

The K family of languages hew very closely to versions written by Arthur Whitney who famously rewrites the entire codebase from scratch with each major revision. Kona is largely modeled on K2 (the second major revision) and ngn/k is modeled on K6. K6 introduced a few more types, more flexible dictionaries and added/changed some primitives from earlier versions but the overall structure of the language is very similar. Someone here has to post ngn’s survey of K languages: https://ngn.codeberg.page/k.html https://ngn.codeberg.page/k.html oK is also modeled on K6 and its manual comes highly recommended.