I used Google Sheets as the DB backend for a membership management site for my local neighbourhood organization. So far it has worked great (for few users, but

I used Google Sheets as the DB backend for a membership management site for my local neighbourhood organization. So far it has worked great (for few users, but that was part of the spec). Here's the project, and there's more rationale/investigation in the README: https://github.com/adam-p/danforth-east https://github.com/adam-p/danforth-east (And... it looks like I need to update from Sheets API v3 to v4.)