Can anyone comment on the similarities with (apparently somewhat less sophisticated) laziness as in Haskell, or the memoisation/caching done by the Nix package

Can anyone comment on the similarities with (apparently somewhat less sophisticated) laziness as in Haskell, or the memoisation/caching done by the Nix package manager, or (perhaps most interestingly) the approach of the Funflow library for Haskell[1]? [1]: https://www.tweag.io/posts/2018-07-10-funflow-make.html https://www.tweag.io/posts/2018-07-10-funflow-make.html