Having reusable functions and pipelines compiling to SQL sounds amazing. (EDIT: and sum types!) Will want to try this out on some side project later.

Although for my Elm + backend needs I feel like I still prefer Lamdera: https://dashboard.lamdera.app/ - WebSocket communication and being able to push new data to clients immediately instead of juggling HTTP endpoints and the client having to pull/refresh. `sendToBackend`, `sendToFrontend`, `broadcast` are a great primitive.