I was cooking this for a while, but every time I started to work on it, I would do it for a few days and then quit.
On the 30th of October, I announced on Twitter that I've taken 2 weeks of holiday to work 100% on the Premium platform of Google Meet Attendance List and so I did. For the next 14 days, I documented what I was doing and posted about it publicly on Twitter.
Finally, MeetList.io was live.