I've been using Hasura and TablePlus a lot lately, and actually wished for something that combines them.

Hasura is great at understanding relations and making joins feel effortless and TablePlus is so good at making table editing feel as fast as excel.

This looks like it's the thing, with some extra power thrown on top (formulas and nested layouts are nice!).

The UI looks drab, but maybe that's ok? It means the functionality needs to be so strong it doesn't matter. It also looks super snappy which matters most.

Something that Airtable has over relational database GUIs is lightweight enums and arrays of them. Sure you can model all that in SQL, but it's super useful to have it right inline. I hope this tool can pick up on a pattern like enum tables (like hasura) and provide UI that makes them look like tag list/select fields.