From the description:

Make your own open source eink typewriter for as little as fifty bucks. The ZeroWriter is a DIY cyberdeck project for writers frustrated with the price of commercial distraction-free word processors. Beginner friendly!

https://github.com/zerowriter/zerowriter1 r/zerowriter https://hackaday.io/project/193902-zerowriter

Full Components List: https://github.com/zerowriter/zerowriter1/blob/main/componentslist

This video demonstrates the software for the ZeroWriter. It’s an open source program that can be adapted for whatever you want. Don’t know programming? No problem. You can just follow some setup steps and be up and running in no time.

The ZeroWriter is a distraction-free drafting tool, like a Freewrite or Pomera DM250. The difference? ZeroWriter’s code is free, open-source, and adaptable. It’s still early, but it already has some neat features:

• Distraction-free drafting on an eink screen
• Navigate/review your draft with arrow keys
•  File Management: Save As, Save, Load & Delete.
• Connect to Wifi on-device for file sharing / transferring
• Send a draft via QR Code (scan with your phone)
• Download drafts from a local web browser (for example, chrome on your laptop)
• Send a draft via connected gmail (add an app password via gmail’s 2-factor authentication settings)
• Add whatever else you want via python! (or don’t!)

Requires: Raspberry Pi Zero 2W and 4.2" Waveshare e-Paper display (400x300) rev2.2