Definitely! As a matter of fact, this is the default data structure I use when writing Ruby ETL code (e.g. https://github.com/thbar/kiba/wiki https://github.com

Definitely! As a matter of fact, this is the default data structure I use when writing Ruby ETL code (e.g. https://github.com/thbar/kiba/wiki https://github.com/thbar/kiba/wiki). Methods like "except" (https://docs.ruby-lang.org/en/3.2/Hash.html#method-i-except https://docs.ruby-lang.org/en/3.2/Hash.html#method-i-except) or "fetch" (raising an error on missing key) are very convenient to write defensive data processing code! Similarly, in Elixir, I use Maps a lot for the same type of jobs (https://hexdocs.pm/elixir/1.15.4/Map.html https://hexdocs.pm/elixir/1.15.4/Map.html), with similar properties.