How to Subscribe to a Twitter List in NetNewsWire
Though the UI doesn’t expose it (we should fix that, yes), you can subscribe to a Twitter list in NetNewsWire.
(Note: this works with iCloud and “On My…” accounts.)
First make sure you’ve added your Twitter account to NetNewsWire in Settings > Extensions.
Then go, in your browser, to the Twitter list you want to add as a feed. Copy the URL. Then, in NetNewsWire, add it as a web feed (not as a Twitter feed). That’s it.
(Note: you can subscribe to other types of Twitter feeds too.)