I built a Comic Book Cover Frame using a waveshare 7.3 inch e-ink screen and a Pi Zero 2WH.  
This  is pretty specific for my use, but I also included a Blank box that you can configure how you want.
The inside of the frame is 32mm in usable space.

My project pulls my comic collection from the App/site i use, stores them on the Pi.  Then once an hour during the day changes the image.  It is awake for about 1 min, then shutsdown. This was a project i just thought to do and used an ai chat to build everytihng.  It was a fun project. Sorry I am no pro, and can't really help duplicate my project.

I listed below the hardware I used.  A lot of the complexity is because I wanted the pi to full shut down between cover changes, trying to prolong that battery to last as long as possible.  If you are just plugging in your Pi then most of that stuff isnt required.  

Also, i know this is a THICK frame.  I purchased Stacking Pi components so it made that piece thick, also I like that it can just stand on it's own.  My Pi Zero is stacked with WaveShare HAT + Pi Zero 2WH + Waveshare UPS Hat (C).

Original Frame came from FrameOS Case Maker, and has been modified.

Frame requires:
M2 Heat-Set Threaded Inserts, M2x4x3.5mm
M2 x 8 mm *These are a tight fit, had to pound them a little to get them in, but once in they work well

Additional Parts in My Build:
Display
Waveshare 7.3inch E Ink Spectra 6 (E6) Full Color E-Paper Display (SKU 32694)
Waveshare E-Paper Driver HAT
Computer
Raspberry Pi Zero 2 WH (pre-soldered header)
DS3231 AT24C32 IIC RTC Module (with CR2032 coin cell)
Power
Waveshare UPS HAT (C)
1000mAh 3.7V 803040 LiPo battery (included with HAT)
Additional
12mm Momentary Push Button Switch

64gb SD Card
90* Micros USB Adapter
100nF ceramic capacitor (104)