We used Google Sheets as our primary DB for a long time: https://www.levels.fyi/blog/scaling-to-millions-with-google-sheets.html https://www.levels.fyi/blog/sca

We used Google Sheets as our primary DB for a long time: https://www.levels.fyi/blog/scaling-to-millions-with-google-sheets.html https://www.levels.fyi/blog/scaling-to-millions-with-google-... We still use it for some off cases but have Postgres now.