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theamk08/06/20251 replyview on HN

Spoiler: it's PocketMage, home-made PDA based on ESP32.

Github says "custom OS", but it's more like "custom UI", it's actually Arduino-based and relies on Arduino libraries for all OS-like functionality.

https://github.com/ashtf8/EinkPDA


Replies

Gigachadlast Monday at 2:42 AM

This is a very strange nitpick. I don't think many people at all would consider the Arduino libraries to be an OS. The UI, apps, usage of the dual screen, keyboard, and scroll pad are more than enough to make calling it a custom OS reasonable. Just because they didn't write their own filesystem and related tooling.