I'm afraid atm it doesn't work for me (iPhone SE - iOS 12.3.1 - Firefox & Safari).
Nevertheless their work is awesome and the idea to aggregate all the things and let user's enjoy them without having to promise their first-born to providers is just amazing ^_^
The message I get is "The media could not be loaded, either because the server or network failed or because the format is not supported". It appears in the square where the video would appear (firefox & safari).
It also seems to be in a loop, reloading the page on and on with this result.
The result is the same with mobile internet as with my home connection.
If there is an instance[0] in your region, I expect that will work better for you. Otherwise you might try adding `&local=true` to the end of the video URL or enabling "Proxy videos?" in your preferences.
I'm afraid atm it doesn't work for me (iPhone SE - iOS 12.3.1 - Firefox & Safari).
Nevertheless their work is awesome and the idea to aggregate all the things and let user's enjoy them without having to promise their first-born to providers is just amazing ^_^