Discover: Where to put information about developer of flatpak software

Hello everyone,

I’m trying to use flatpak to distribute a commercial application with a self-hosted flatpak repository. I’ve got almost everything working now, the only issue I still have is that Discover states that the application is developed by an “Unknown author”. I’ve tried both the <developer/> and <developer_name/> tags in the AppStream metainfo file, but neither had any effect.

Does anyone know which properties I need to add to my metainfo file to have Discover show the developer name? Currently my metainfo file has the following content:

<?xml version="1.0" encoding="UTF-8"?>
<component type="desktop-application">

  <summary>a cross-platform tool for efficient multi-stream broadcast, conversion, routing and monitoring of real-time multimedia data</summary>


  <url type="homepage"></url>
  <url type="contact">mailto://</url>

  <icon type="stock">io.volkert.multi_streamer</icon>

  <developer_name>Volkert Software</developer_name>


    <display_length compare="ge">768</display_length>

    <release type="stable" version="1.1.1" date="2023-12-23">
            <li>improved support for auto-reconnect in case of "receive from url" and a returning remote SRT/TCP server (listener)</li>
            <li>improved display of the current state of each individual video player</li>
            <li>improved support of YUV 4:4:4 chroma sub sampling for video encoding</li>

            <li>make sure the video aspect ratio stays correct when switching between fullscreen and window mode playback</li>
            <li>fixed support of odd frame rates like 12.5 fps (esp., for IP cameras in night vision mode)</li>
            <li>fixed support of receiving RTSP streams from IP cameras containing H.264 video streams</li>
            <li>fixed video frame rate handling in case of hardware accelerated video decoding</li>
            <li>fixed releasing of previously allocated resources for video/audio device based inputs</li>

  <launchable type="desktop-id">io.volkert.multi_streamer.desktop</launchable>
    <screenshot type="default">