(just jumping in here) You may want to take a look at https://www.scattered-thoughts.net/writing/an-opinionated-map-of-incremental-and-streaming-systems/ https:

(just jumping in here) You may want to take a look at https://www.scattered-thoughts.net/writing/an-opinionated-map-of-incremental-and-streaming-systems/ https://www.scattered-thoughts.net/writing/an-opinionated-ma... which describes things on the spreadsheety and not-very-spreadsheety ends of the spectrum (moreso the latter). If you follow some of the links there you should find some good descriptions of various implementation strategies, e.g. Naiad style timely dataflow or incremental-style pseudotime.