diff --git a/source/_data/tools.json b/source/_data/tools.json
index 5a01074..e49bc50 100644
--- a/source/_data/tools.json
+++ b/source/_data/tools.json
@@ -2808,6 +2808,24 @@
         "diasporaClass": false,
         "OStatusClass": false,
         "categories": ["Utils"]
+      },
+      {
+        "title": "ActivityColander",
+        "source": "https://gitlab.com/babka_net/activitycolander",
+        "protocols": "ActivityPub",
+        "site": "",
+        "logo": "",
+        "servers": "",
+        "description": "Fediverse spam gateway, designed to keep unwanted messages from either reaching your ActivityPub server, or tagging them for handling later.",
+        "codeLanguage": "Lua",
+        "techStack": "",
+        "license": "AGPL-3.0",
+        "FediAccount": "",
+        "apClass": true,
+        "zotClass": false,
+        "diasporaClass": false,
+        "OStatusClass": false,
+        "categories": ["Utils"]
       }
     ]
 }
diff --git a/themes/starter/source/assets/scss/modules/_misc.scss b/themes/starter/source/assets/scss/modules/_misc.scss
index 5a3a0d4..5f9201b 100644
--- a/themes/starter/source/assets/scss/modules/_misc.scss
+++ b/themes/starter/source/assets/scss/modules/_misc.scss
@@ -288,6 +288,7 @@
 #hare:checked ~ .misc__grid .card:not(.hare),
 #nim:checked ~ .misc__grid .card:not(.nim),
 #scala:checked ~ .misc__grid .card:not(.scala),
+#lua:checked ~ .misc__grid .card:not(.lua),
 #agpl3:checked ~ .misc__grid .card:not(.agpl3),
 #mit:checked ~ .misc__grid .card:not(.mit),
 #gpl3:checked ~ .misc__grid .card:not(.gpl3),