Some discourse instances allow unfettered public viewing, e.g.,
emacs-china.org, devforum.roblox.com. Others require login, e.g.,
discourse.doomemacs.org. At the time I wrote nndiscourse, it was
impossible to get login going, and while it does seem possible now,
it still looks really hard and undocumented.
Alas, you'll need Cask. Then,
rbenv install 2.6.2 git clone https://github.com/dickmao/nndiscourse.git make -C nndiscourse install
Suppose you want to follow https://emacs-china.org. In your .emacs or init.el, use ONE of the following:
;; Applies to first-time Gnus users
(custom-set-variables '(gnus-select-method
(quote (nndiscourse "emacs-china.org" (nndiscourse-scheme "https")))))
or, if you're an existing Gnus user,
;; Applies to existing Gnus users
(add-to-list 'gnus-secondary-select-methods
(quote (nndiscourse "emacs-china.org" (nndiscourse-scheme "https"))))
Then M-x gnus.
Select a topic category via RET. Rapidly catch yourself up via N and P. Instantly catch-up with c.
From the *Group* buffer, press g to refresh all categories. M-g on a particular category to refresh individually.
From the summary buffer, /o redisplays posts already read. x undisplays them.
Gnus beginners may find the interface bewildering. In particular, categories with no unread posts do not display. Use L to bring them out of hiding.