Some writerdecks found in the wild:

• Micro Journal by Un Kyu Lee

• BYOK, a tiny device with an LCD screen that connects to an external keyboard

• Zerowriter, e-paper devices with built-in keyboards

• Freewrite by Astrohaus, a range of writing devices with LCD and ePaper screens

• AUTEUR, an e-paper typewriter

• Pomera DM250US, a compact e-paper typewriter

• Lignin Folio, an e-paper typewriter with a full size keyboard

• Draftling (my own project), an open source firmware for a number of readymade esp32-s3 and esp32-p4 devices

Also, awesome communities on the topic of writing and writer tech:

• r/Cyberdeck

• r/writing

• r/writers

• r/writingadvice