How does this compare to retool? I've been using that to build UIs directly on top of
Postgres, and it's been nice to be able to design the screens a little; eg inserting new rows linked to a currently selected row by primary key. Curious if you're targeting primarily a spreadsheet-like view, or if the interface can be customized. How does the spreadsheet view work across multiple linked table? Can you present the tabular info in non tabular ways (e.g. a row details or editor view)
We don't have any ability to customize UIs yet, although we're certainly open to feature requests.
We do have a "Record Page" for each individual record that shows a tabular view of related records from other tables, here's a screenshot from our website: https://mathesar.org/_app/immutable/assets/step-2.CKT9S1j0.a... - you can create new linked records directly there.