A couple of years ago when talking to a friend, we had the idea to build a digital picture frame that always showed the dankest memes from r/dankmemes and r/me_irl.
I got to work and ordered a small tft monitor for one of the PI's I had lying around. I made a website (https://dankmeme-gallery.web.app/) that displayed a slideshow of hot dank memes from reddit and made that website show in a fullscreen Chrome window on the PI. It worked, but it sucked because the display had shitty viewing angles and it probably used a ton of energy and always had to be plugged in.
We recently discussed if it would be possible to build a better version of the meme display nowadays and to my surprise I discovered that there are color E-Ink displays now. These can display 7 different colors, which might sound limiting, compared to the 16.7 million colors a typical modern monitor can show but if we use dithering the results look pretty nice (when not looking too close).
Since the Inky Impression was sold out everywhere in Germany and I wanted to use the PI Pico I chose the Waveshare e-Paper Module. But the Inky would've also been fine, and they also offer a Pi Pico version.
Other Parts:
The battery, holder and charger circuit are optional but it's nice if the frame doesn't need a wire connected.