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GrapheneOS has funding available for developing an open source WebUSB-based installer as an alternative to our installation guide. It's low-level programming work despite being in JavaScript. Get in touch with us (contact@grapheneos.org) if you're interested in working on it.

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Lilian

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Im really interrested in how this will work/be implemented!

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flash.android.com/welcome is an existing proprietary implementation. Reverse engineering the protocol from there would be an optional but it seems like it's likely the same as the open source fastboot tool, so the C++ code could be used as a reference for the protocol instead.

3:22 PM · Jan 4, 2021Twitter Web App

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it's definitely the same protocol: android.googlesource.com/platform/syste for a reference