Wanted to share mine: https://fluffyelephant.com/2015/12/reuse-my-ebook-reader/
I’ve used an old Sony e-reader. It has a decent browser so made a simple html+javascript page that displays the weather and the subway times. Been chugging along now for 5 years, only issues I’ve run into have been the API I used for subway times getting shut down, so had to upgrade to a newer API. I use PHP to transform the data from the APIs.