Our cat rescue nonprofit has basically no money, and our Airtable is constantly getting full, so we either need to start paying for it or find an alternative. As a non-profit, we can get the nonprofit Azure or AWS grants, so I’m trying to figure out if something like self-hosted grist-omnibus on one of those platforms would be a viable alternative.
The ability to create interface-like cards/panes seems like an upgrade that we would use. Is that the only way to view a single record in a document-style view? Like Airtable has the arrows that open up the “card”(?) view:
and our volunteers use that a lot.
The ability to use complex python formulas seems nice.
There are no phone apps? But it says “you can now use Grist quite comfortably in mobile browsers”, so that is probably fine? (I haven’t actually tried it.)
It doesn’t directly support forms? But we can integrate it with Google Forms or something like that? What’s the easiest?
It doesn’t have a calendar view? Does it have calendar export? Like adding or calculating dates in the table get converted into events in Google Calendar?
It looks like it supports multiple views of the same table, but can users create their own private views?
Last time I tried it, it seemed like if you link to another table, it doesn’t automatically create backlinks to the first like Airtable does? I guess that’s OK.
Is there a way to import our entire base with image attachments etc. from Airtable? I searched and didn’t find anything.
Is it possible to make formula fields that produce clickable links? (Specifically, one field contains an address, and then another field is now a link to a Google Map of that address, or our custom Google My Maps of the same.)
Forms that people outside the organization can fill out and then press Submit. (Adoption applications, etc.) Airtable has them built-in, and 
