I imagined something similar few weeks ago, a simple html form with a big button in center; hosted on Gitlab Pages, with a xmlhttp ajax submit event to Google A

I imagined something similar few weeks ago, a simple html form with a big button in center; hosted on Gitlab Pages, with a xmlhttp ajax submit event to Google Apps Script, which logs the current heartbeat to Google Sheet. A simple Google Calender notification reminds me to click this link once every x days/weeks. Same sheet has another time based auto run function which checks if last heartbeat more than x days ago, sends email if true.