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Cobalt open-source platform brings signed apps and a Rust SDK to Kobo e-readers
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Cobalt is an open-source application platform that allows Kobo e-readers to run signed apps installed over Wi-Fi, developed using a Rust SDK.
Only one feed carried this story, so corroboration is limited. The platform runs apps as unprivileged processes on stock hardware, with capability-gated access to device resources. A reboot returns the device to the stock Kobo reader, lowering the risk of permanent modification.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
Cobalt installs over USB once, after which apps install, update, and remove over Wi-Fi from a signed catalog.
The Rust SDK uses a declarative UI model and capability-gated access for network, storage, audio, and other device resources.
App releases are independent of platform releases, with signed static ARMv7 binaries built when an app pull request merges.
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