The airtable smart sheets now has an app platform called Airtable Blocks, which allows developers to add custom code, and build apps quickly.
For example, one cool demo is quickly create Google Street view for real estate housing addresses. This could be useful for real estate agents to quickly present a view of the listing to prospective buyers. Perfect for COVID virtual tours.
See the platform manager, engineer explain Airtable Blocks.
You can also fork existing apps by using the Remix functionality, to quickly build on top of sample apps.