A recent project demonstrates running the Rust programming language and Slint GUI toolkit on jailbroken Kindles, prompting community discussions on repurposing e-ink devices for custom applications. Enthusiasts shared strategies for maintaining jailbreaks by blocking over-the-air updates and compared the experience to alternative Linux-based e-readers like Kobo and the PineNote. The conversation highlights a growing interest in lightweight, privacy-focused, and ad-free custom firmware for older e-ink hardware.