I mean, does the official app throw an error looking at those feeds? Because I took "heavy inspiration" from the health check in the official app there but had to disable it because they were all failing
yeah if the feed is loading, it should probably just have something akind to a little orange banner at the top ("this feed may have degraded service" or smth)
I feel like it should probably be easier to add new feeds. I think that fits into the philosophy of constant expansion within social media, you're always opening new connections and so you don't want to hide that behind another menu.