Not that I want to be anti-innovation, but what if spreadsheets allow the user to be more in control, have more flexibility and avoid monthly payments of 3-5 cloud services? Maybe replacing every spreadsheet is not optimal.
Airtables is a good example, though -- I'm seriously thinking of creating an OSS version of Airtables, that has more field types -- like being able to edit using Markdown... or join across bases, not just tables.. There's SO much more you could do w/ their tech, and blocks should be free - just they should have a marketplace and take a cut of sales--something like shopify... if I OSS'd it, I'd do some hybrid like wordpress does, but require a % on anything in the 'app store' -- but all core features would be free / foss.
would be amazing!
Features I'd like to build into it:
Bubble like app from spreadsheets.
Hosted and oss version.
Extra types: json, md, xml, etc.
Time tracker.