diff --git a/librarian/discord/cogs/server.py b/librarian/discord/cogs/server.py
index 69e6e03..12d3ae8 100644
--- a/librarian/discord/cogs/server.py
+++ b/librarian/discord/cogs/server.py
@@ -105,7 +105,7 @@ async def show(self, ctx: types.Context, *args):
 
         return await ctx.message.channel.send(content=reply)
 
-    # the final docstring for this command is generated automatically
+    # the final docstring for this command is generated automatically -- see __init__()
     @commands.command(name="set")
     @helpers.is_promoted()
     @commands.guild_only()
diff --git a/librarian/discord/languages/__init__.py b/librarian/discord/languages/__init__.py
index 5cd7a6d..38f229b 100644
--- a/librarian/discord/languages/__init__.py
+++ b/librarian/discord/languages/__init__.py
@@ -1,6 +1,6 @@
 from .base import LanguageMeta  # noqa
 from . import (
-    ru,
+    ru, special,
 )
 
-__all__ = ("ru",)
+__all__ = ("ru", "special",)
diff --git a/librarian/discord/languages/special.py b/librarian/discord/languages/special.py
new file mode 100644
index 0000000..133d8b6
--- /dev/null
+++ b/librarian/discord/languages/special.py
@@ -0,0 +1,31 @@
+from librarian.discord.languages import base
+
+
+class UnspecifiedLanguage(base.Language):
+    """
+    Matches everything that don't match the "[LANGUAGE_CODE] PR title" format
+    """
+
+    code = "none"
+    highlights = [""]
+
+    @classmethod
+    def match(cls, line):
+        return not line.strip().startswith("[")
+
+
+class EveryLanguage(base.Language):
+    """
+    Matches everything
+    """
+
+    code = "all"
+    highlights = [""]
+
+    @classmethod
+    def match(cls, _):
+        return True
+
+    @property
+    def random_highlight(self):
+        return ""
diff --git a/librarian/discord/settings/custom.py b/librarian/discord/settings/custom.py
index bd266c7..f1a9491 100644
--- a/librarian/discord/settings/custom.py
+++ b/librarian/discord/settings/custom.py
@@ -16,13 +16,14 @@ class PinMessages(base.Bool):
 class Language(base.String):
     """
     pulls with this language code will be watched.
-    possible values: anything from https://osu.ppy.sh/wiki/en/Article_styling_criteria/Formatting#locales
+    possible values: anything from https://osu.ppy.sh/wiki/en/Article_styling_criteria/Formatting#locales, plus "all" and "none"
     """
 
     name = "language"
     __whitelisted = frozenset((
         "en", "ar", "be", "bg", "cs", "da", "de", "gr", "es", "fi", "fr", "hu", "id", "it", "ja", "ko", "nl", "no",
         "pl", "pt", "pt-br", "ro", "ru", "sk", "sv", "th", "tr", "uk", "vi", "zh", "zh-tw",
+        languages.special.UnspecifiedLanguage.code, languages.special.EveryLanguage.code,
     ))
 
     def __init__(self, *a, **kw):
diff --git a/tests/discord/languages/test_special.py b/tests/discord/languages/test_special.py
new file mode 100644
index 0000000..d1816a3
--- /dev/null
+++ b/tests/discord/languages/test_special.py
@@ -0,0 +1,35 @@
+import re
+
+import pytest
+
+from librarian.discord.languages import base, special
+
+
+class TestLanguages:
+    def test__matching__unspecified_language(self):
+        assert base.LanguageMeta.get("none") is special.UnspecifiedLanguage
+        for good_title in (
+            "Update OWC2022",
+            "Update dependencies",
+            "   Some spaces! Wow",
+            "\"Special\" pull request",
+        ):
+            assert special.UnspecifiedLanguage.match(good_title)
+
+        for bad_title in (
+            "[EN] Update OWC2022",
+            "[TEST] Update dependencies",
+            "[EN/RU] Test",
+        ):
+            assert not special.UnspecifiedLanguage.match(bad_title), bad_title
+
+    def test__matching__every_language(self):
+        assert base.LanguageMeta.get("all") is special.EveryLanguage
+        for any_title in (
+            "Update OWC2022",
+            "[RU] Update OWC2023",
+            "[RU/EN] Update OWC2024",
+            "     Spa   ces",
+            "\"Rhythm Games from Outer Space\" (Short 1992)", 
+        ):
+            assert special.EveryLanguage.match(any_title)
diff --git a/tests/discord/settings/test_custom.py b/tests/discord/settings/test_custom.py
index 2a5c27d..2a3b810 100644
--- a/tests/discord/settings/test_custom.py
+++ b/tests/discord/settings/test_custom.py
@@ -1,5 +1,7 @@
 import pytest
 
+from librarian.discord.languages import special
+
 from librarian.discord.settings import (
     base,
     custom
@@ -30,6 +32,11 @@ def test__language(self):
                 custom.Language(val).match("[DOES NOT] compute")
             assert "non-existent language" in str(e)
 
+        for val in [special.EveryLanguage.code, special.UnspecifiedLanguage.code]:
+            instance = custom.Language(val)
+            assert instance.check() and instance.cast() == val.strip().lower()
+            assert len(instance.random_highlight) == 0
+
     def test__reviewer_role(self):
         for val in ["123", "<@&1234>", 12345678901234567890]:
             instance = custom.ReviewerRole(val)