JSON was never meant for configuration.

YAML has a ton of footguns.

Why would you pay for a podcast service?

There are a bunch of podcast client apps that are free to use, some are open source, and they are utilizing indices such as podcastindex.org to give you access to podcasts.

I’m not using Tailscale, but I’d imagine that if you wanted to form a private network that involves devices controlled by non-technical people, the GUI becomes less of a “don’t like to deal with keys/IPs” and more of a “can’t deal”.