Notification system (Discution)

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Hi, I want to « create » a big notification systems and I want to know what are you suggesting me

This is what i thought so far :

  1. I want diferent level of notifications ( ex: info, warning, improtant etc… )
  2. I want that depend on the type of notification ( and may be some other condition ) that my notification is either send to my google home, my phone, or show on my different wall mount tab, smart mirror ( may be even on the tv )
  3. On my wall mount tab i want 2 style of Notification : first a notification card (something like hey don’t forget to your mom birthday) and i want temporary pop up alert ( for thing like : your wife is home ! )
  4. On my wall tab i want to access a logbook off the notification of the day ( may be a more info off my notification card or something… )

What do you thinks of it ? Does someone allready done something similar?

Thanks