diff --git a/app/helpers/context_helper.rb b/app/helpers/context_helper.rb
index a0c1781d24..229227df4f 100644
--- a/app/helpers/context_helper.rb
+++ b/app/helpers/context_helper.rb
@@ -4,6 +4,7 @@ module ContextHelper
   NAMED_CONTEXT_MAP = {
     activitystreams: 'https://www.w3.org/ns/activitystreams',
     security: 'https://w3id.org/security/v1',
+    miscellany: 'https://purl.archive.org/socialweb/miscellany',
   }.freeze
 
   CONTEXT_EXTENSION_MAP = {
diff --git a/app/serializers/activitypub/actor_serializer.rb b/app/serializers/activitypub/actor_serializer.rb
index a6281e23b9..a4990a4733 100644
--- a/app/serializers/activitypub/actor_serializer.rb
+++ b/app/serializers/activitypub/actor_serializer.rb
@@ -4,10 +4,10 @@ class ActivityPub::ActorSerializer < ActivityPub::Serializer
   include RoutingHelper
   include FormattingHelper
 
-  context :security
+  context :security, :miscellany
 
-  context_extensions :manually_approves_followers, :featured, :also_known_as,
-                     :moved_to, :property_value, :discoverable, :olm, :suspended,
+  context_extensions :featured, :also_known_as,
+                     :property_value, :discoverable, :olm, :suspended,
                      :memorial, :indexable, :attribution_domains
 
   attributes :id, :type, :following, :followers,
diff --git a/app/serializers/activitypub/hashtag_serializer.rb b/app/serializers/activitypub/hashtag_serializer.rb
index 2b24eb8cc1..5dbd0fc458 100644
--- a/app/serializers/activitypub/hashtag_serializer.rb
+++ b/app/serializers/activitypub/hashtag_serializer.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class ActivityPub::HashtagSerializer < ActivityPub::Serializer
-  context_extensions :hashtag
+  context :miscellany
 
   include RoutingHelper
 
diff --git a/app/serializers/activitypub/note_serializer.rb b/app/serializers/activitypub/note_serializer.rb
index 27e058199d..a27562adef 100644
--- a/app/serializers/activitypub/note_serializer.rb
+++ b/app/serializers/activitypub/note_serializer.rb
@@ -3,7 +3,9 @@
 class ActivityPub::NoteSerializer < ActivityPub::Serializer
   include FormattingHelper
 
-  context_extensions :atom_uri, :conversation, :sensitive, :voters_count
+  context :miscellany
+
+  context_extensions :atom_uri, :conversation, :voters_count
 
   attributes :id, :type, :summary,
              :in_reply_to, :published, :url,
@@ -254,7 +256,7 @@ class ActivityPub::NoteSerializer < ActivityPub::Serializer
   end
 
   class TagSerializer < ActivityPub::Serializer
-    context_extensions :hashtag
+    context :miscellany
 
     include RoutingHelper
 
diff --git a/config/initializers/json_ld_miscellany.rb b/config/initializers/json_ld_miscellany.rb
new file mode 100644
index 0000000000..3ff18ccf74
--- /dev/null
+++ b/config/initializers/json_ld_miscellany.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+# This file generated automatically from https://purl.archive.org/socialweb/miscellany
+require 'json/ld'
+class JSON::LD::Context
+  add_preloaded("http://purl.archive.org/socialweb/miscellany") do
+    new(processingMode: "json-ld-1.1", term_definitions: {
+      "Hashtag" => TermDefinition.new("Hashtag", id: "https://www.w3.org/ns/activitystreams#Hashtag", simple: true),
+      "as" => TermDefinition.new("as", id: "https://www.w3.org/ns/activitystreams#", simple: true, prefix: true),
+      "manuallyApprovesFollowers" => TermDefinition.new("manuallyApprovesFollowers", id: "https://www.w3.org/ns/activitystreams#manuallyApprovesFollowers", type_mapping: "http://www.w3.org/2001/XMLSchema#boolean"),
+      "movedTo" => TermDefinition.new("movedTo", id: "https://www.w3.org/ns/activitystreams#movedTo", type_mapping: "@id"),
+      "sensitive" => TermDefinition.new("sensitive", id: "https://www.w3.org/ns/activitystreams#sensitive", type_mapping: "http://www.w3.org/2001/XMLSchema#boolean"),
+      "xsd" => TermDefinition.new("xsd", id: "http://www.w3.org/2001/XMLSchema#", simple: true, prefix: true)
+    })
+  end
+  alias_preloaded("https://purl.archive.org/socialweb/miscellany", "http://purl.archive.org/socialweb/miscellany")
+end