Developer Turns Ledger Flex into a 90s Handheld Running Games Generated by Grok 4.5

tetsuoai · x · 2026-08-10

Developer @signerless transformed a Ledger Flex into a 90s-style handheld, running classic games like Invaders and Snake natively on the secure element. The device features a 480x600 e-paper display, 6 fps, and only 14 KB of flash, with no key derivation or APDU surface, ensuring it cannot touch the seed. The project was powered by Grok 4.5, showcasing AI's role in embedded development.

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