Instead of fixing the old NDEF applet and its installation process we used up until now (GitHub - OpenJavaCard/openjavacard-ndef: NDEF tag implementation for JavaCard), we will switch over to the all-new NDEF applet made by Vivokey (i.e. me). This new applet was developed from the ground up, comes with a few nice features and a lot less technical debt. Once the applet is available via Fidesmo (they are currently migrating it), I will write an announcement post on how to use the new applet and its fancy new features.
I can however already offer a sneak peek: Vivokey now has servers registered with Fidesmo acting as Service Providers, giving us much more control over the installation process and UI:
Edit: The new NFC sharing app is live, see New NFC Sharing Applet .