Home-Assistant-Mail-And-Packages VS MagicMirror

They're probably using the Mail & Packages integration for Home Assistant.

It works via email. You sign up for emails from USPS and it parses email every day to see what mail will be delivered. More details here

Mail and Packages integration

I use MagicMirror to do this. It's a great piece of software. I'm a bit shocked nobody has mentioned this yet. https://magicmirror.builders/

The most used solution it’s https://magicmirror.builders/

I’m planning on using MagicMirror (https://magicmirror.builders/) to do this in my kitchen but without the mirror part (just a TV mounted in a niche on the wall). Did you build your software from scratch?

Check out Magic Mirror. Could be what you're looking for. https://github.com/MichMich/MagicMirror

Would this work with magic mirror?

https://magicmirror.builders/

If so I will order right away

Have a look at the Magic Mirror project https://magicmirror.builders/

You could also look into something like MagicMirror. not sure if you have a server to host, or looking for just local on iPad.

The final option seems to be basically homebrewing a solution using a program like MagicMirror and local image files installed on the pi. There quite a few guides out there on different ways to do this. But

You can still participate in distributed computing projects, just check out Science United which is one that uses BOINC for the project management. I've got it running on my Raspberry Pi (which primarily runs Magic Mirror so its nice to let somebody else get some benefit since its primarily a relatively static display). Also, Folding@Home did do some of the research into COVID, so it is staying up to date.