levels.fyi started out using Google Sheets as a back end. Submissions were done via Google Form, inserting into the sheet. https://www.levels.fyi/blog/scaling-

levels.fyi started out using Google Sheets as a back end. Submissions were done via Google Form, inserting into the sheet. https://www.levels.fyi/blog/scaling-to-millions-with-google-sheets.html https://www.levels.fyi/blog/scaling-to-millions-with-google-...