https://github.com/edn-query-language/eql#ast-encodedecode

It’s not perfect, it doesn’t understand some attribute option syntax

That is really close. I see it treats parameters differently, but only slightly.

We write our queries in eql and have a transform function to convert ast to Datomic syntax.

Nice, that’s a good approach.

https://github.com/souenzzo/eql-datomic/

Very nice! Thanks!