[bob1029]

We do a thing where we project all of the domain state (i.e. for a given user's session/work) into an in-memory database and then execute the business's SQL queries against it in order to determine logical outcomes.

I wouldn't really call it low/no code, since developing effective queries is non-trivial for many cases, but it does make it much more feasible for a non-developer to add incremental value to our product.