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Cambium

Forgesworn

NIP-55 signer that holds no keys: signing is proxied to a NIP-46 hardware bunker

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Cambium is an Android NIP-55 signer that holds no user keys. Every signing request is proxied to a paired Heartwood hardware signer over NIP-46 (Nostr relays), and the response is handed straight back to the requesting app.

Developer
Forgesworn
Website
cambium.forgesworn.dev
Source code
github.com/forgesworn/cambium
Added to AppCosmos
License
MIT