Preview of the application page

I am new at maintaining my own application on flathub. I am searching for a possibility to preview the app-page, which is compiled from the appdata.xml. In the log of the buildbot, i could not find anything like this after a testbuild.
I feel a bit uncomfortable on trusting my own appdata.xml and want to make sure, the page is displayed as intended before it gets published.

Thanks in advance!


The plan is to have it, but we need to sort out few things with both frontend and backed before it happens.