Self-Hosted Main

I am a recent member of multi-monitor gang and I won't lie it doubled my productivity. But I have one more small screen which is not that useful. So I am looking for a selfhosted software or even an android app that I can put up on the screen. My requirements are having calendar, to-do list, notes, etc all at a glance. I use Google workspace for college so a self hosted software which can pull data from Google would be best(I know it's an irony) but a separate. For now the only solution I have is creating a custom dashboard using home assistant. Maybe magic mirror software would work too but I haven't tried it yet. Can anyone suggest a better alternative?