The idea was to make it easy to create typesafe querying APIs, similar to ORMs I was using at the time, but using pure SQL. I was also inspired by hasura's GraphQL API engine, but wanted to build something simpler for tRPC APIs, thus the name.
I've also built a small playground where you can see the raw SQL queries that are created when you run the API [2]
It's a proof of concept that I've used to build APIs with a lot of dynamic filters and complex sub-queries, I'd love to know your thoughts on it!