Abandon nikola-discuss mailing list

.github/ISSUE_TEMPLATE/something-else.md

@@ -1,6 +1,6 @@
 ---
 name: Something else
-about: "(For usage questions, try the nikola-discuss mailing list)"
+about: "(For usage questions, use the Discussions tab)"
 title: ''
 labels: ''
 assignees: ''

CONTRIBUTING.rst

@@ -11,8 +11,8 @@ Here are some guidelines about how you can contribute to Nikola:
   feature to Nikola.
 
 * If your contribution is a new feature, it should be discussed first, under
-  the GitHub issue for the feature request. You may also discuss it on the
-  `mailing list <http://groups.google.com/group/nikola-discuss>`_.
+  the GitHub issue for the feature request. You can also discuss it on the
+  `GitHub Discussions tab <https://github.com/getnikola/nikola/discussions>`_.
 
 * **Create a new Git branch specific to your change(s).** For example, if
   you’re adding a new feature to foo the bars, do something like the

docs/manual.rst

@@ -93,10 +93,10 @@ Getting Help
 
 TL;DR:
 
-* You can file bugs at `the issue tracker <https://github.com/getnikola/nikola/issues>`__
-* You can discuss Nikola at the `nikola-discuss google group <https://groups.google.com/group/nikola-discuss>`_
+* You can file bugs at `the Issue tracker on GitHub <https://github.com/getnikola/nikola/issues>`__
+* You can discuss Nikola on the `Discussions page on GitHub <https://github.com/getnikola/nikola/discussions>`_
 * You can subscribe to `the Nikola Blog <https://getnikola.com/blog>`_
-* You can follow `Nikola on Twitter <https://twitter.com/GetNikola>`_
+* You can follow `Nikola on X <https://x.com/GetNikola>`_
 
 Why Static?
 -----------

docs/support.rst

@@ -13,22 +13,20 @@
 Help and Support
 ================
 
-1. A `mailing list`_, nikola-discuss on Google Groups exists.
+1. Create a `Discussion on GitHub`_.
 2. There’s an IRC channel: #nikola on Libera.Chat.  You can
    find many developers and volunteers (users) there which are there to provide
    help, if they are around and read your message.  The channels are
    `publicly logged <https://irclogs.getnikola.com/>`_.
-3. You can also contact `@GetNikola <https://twitter.com/GetNikola>`_ on
-   Twitter.
-4. If you are experiencing a bug, you should report it on GitHub (see
+3. If you are experiencing a bug, you should report it as an Issue on GitHub (see
    below).
 
 Plugins and Themes
 ------------------
 
 Plugins and Themes from the Indexes are not officially supported.
 
-1. Ask the `mailing list`_, which may or may not work out.
+1. Create a `Discussion on GitHub`_, which may or may not work out.
 2. You can also try the IRC channel if the theme/plugin is very popular.
 3. Report an issue at the `plugins issue tracker`_ or at the `themes
    issue tracker`_.
@@ -42,8 +40,7 @@ Report a Bug, Request a Feature
 
 Bug reports should be sent to the `Issue tracker`_ at GitHub.
 
-Feature requests should be sent to the `Issue tracker`_ or to
-the `mailing list`_, especially if they require further discussion.
+Feature requests should be sent to the `Issue tracker`_ or in a `Discussion on GitHub`_, especially if they require further discussion.
 
 Administrativia
 ===============
@@ -72,7 +69,7 @@ Administrators
 | Chris Warrick        | Kwpolska        | Poland    | [email protected]   |
 +----------------------+-----------------+-----------+-----------------------+
 
-.. _mailing list: https://groups.google.com/group/nikola-discuss
+.. _Discussion on GitHub: https://github.com/getnikola/nikola/discussions
 .. _Issue tracker: https://github.com/getnikola/nikola/issues
 .. _plugins issue tracker: https://github.com/getnikola/plugins/issues
 .. _themes issue tracker: https://github.com/getnikola/nikola-themes/issues