Looks promising, thanks for sharing! Your idea of having functions that don't have effects and procs that don't return, reminds me of https://en.m.wikipedia.or

Looks promising, thanks for sharing! Your idea of having functions that don't have effects and procs that don't return, reminds me of https://en.m.wikipedia.org/wiki/Command%E2%80%93query_separation https://en.m.wikipedia.org/wiki/Command%E2%80%93query_separa... - so there's some prior work there for reassurance and reference. First class reactivity would be extremely useful - I've thought the same thoughts as you around how reactivity is only partially solved with the current generation of UI libraries (or moreso with RxJS, but the syntax is full of baggage) so I wish you every success with solving it more comprehensively.