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This sounds to me like the old hexagonal architecture [1] [1] https://en.wikipedia.org/wiki/Hexagonal_architecture_(software) https://en.wikipedia.org/wiki/Hex

• Twisol 1y ago
  Yep! I remember the phrase "functional core, imperative shell" being popularized by Gary Bernhardt in ~2012 [0][1]; in his talk Boundaries [0] (around 31:00), he even mentions "hexagonal architecture" by name. [0]: https://www.destroyallsoftware.com/talks/boundaries https://www.destroyallsoftware.com/talks/boundaries [1]: https://www.destroyallsoftware.com/screencasts/catalog/functional-core-imperative-shell https://www.destroyallsoftware.com/screencasts/catalog/funct...
• ericmcer 1y ago
  Famously how Doom was written and maybe part of why it was ported to so many platforms. Hex is kind of a PITA for ground up projects, but if you are doing something where you know multi-platform/cloud/device whatever is important it is cool.