Add Get it on F-Droid badge to README

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mimi89999
2025-12-18 18:59:44 +01:00
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A credential provider for Android that enables FIDO2/CTAP2 security keys over NFC.
[<img src="https://f-droid.org/badge/get-it-on.png"
alt="Get it on F-Droid"
height="80">](https://f-droid.org/packages/pl.lebihan.authnkey)
## Background
Android does not support CTAP2 over NFC. The built-in WebAuthn implementation only handles basic U2F-style authentication for NFC keys, which means no PIN verification and no discoverable credentials (passkeys). USB-C keys have better support, but NFC keys are limited to tap-to-authenticate without user verification.