You can configure Substr for multiple relays and arbitrary username/pubkey pairs, so this is how I'm reading nostr:npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6's articles now (and finally not missing any, because new ones will pop up in my feed reader):

https://nostr.kosmos.org/@fiatjaf

(Also, that content was great for fixing a bunch of content styles, URI parsing/linking, and more.)