[asa400]

Ecto Changesets[0] are runtime constructs, yes. They're similar to libaries like Pydantic, if you're familiar with Python.

[0] - https://ecto.hexdocs.pm/Ecto.Changeset.html

[steve_adams_86]

Yes, this is exactly what I was wondering, thanks. Another version of this that I love is Effect Schema in TypeScript land.

The runtime costs aren’t trivial, especially on large datasets, but I’ve come to love this pattern a lot.