diff --git a/package-lock.json b/package-lock.json
index 8d391e4..b9651a7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3097,7 +3097,7 @@
       "dependencies": {
         "@welshman/lib": "0.0.11",
         "@welshman/net": "0.0.14",
-        "@welshman/util": "0.0.20",
+        "@welshman/util": "0.0.21",
         "nostr-tools": "^2.7.0"
       },
       "devDependencies": {
@@ -3111,7 +3111,7 @@
       "version": "0.0.12",
       "license": "MIT",
       "dependencies": {
-        "@welshman/util": "0.0.20"
+        "@welshman/util": "0.0.21"
       },
       "devDependencies": {
         "gts": "^5.0.1",
@@ -3149,7 +3149,7 @@
       "license": "MIT",
       "dependencies": {
         "@welshman/lib": "0.0.11",
-        "@welshman/util": "0.0.20",
+        "@welshman/util": "0.0.21",
         "isomorphic-ws": "^5.0.0",
         "ws": "^8.16.0"
       },
@@ -3161,7 +3161,7 @@
     },
     "packages/util": {
       "name": "@welshman/util",
-      "version": "0.0.20",
+      "version": "0.0.21",
       "license": "MIT",
       "dependencies": {
         "@welshman/lib": "0.0.11",
diff --git a/packages/dvm/package.json b/packages/dvm/package.json
index 4ad2cc3..70ea42a 100644
--- a/packages/dvm/package.json
+++ b/packages/dvm/package.json
@@ -33,7 +33,7 @@
   "dependencies": {
     "@welshman/lib": "0.0.11",
     "@welshman/net": "0.0.14",
-    "@welshman/util": "0.0.20",
+    "@welshman/util": "0.0.21",
     "nostr-tools": "^2.7.0"
   }
 }
diff --git a/packages/feeds/package.json b/packages/feeds/package.json
index 027add6..18f90b6 100644
--- a/packages/feeds/package.json
+++ b/packages/feeds/package.json
@@ -31,6 +31,6 @@
     "typescript": "~5.1.6"
   },
   "dependencies": {
-    "@welshman/util": "0.0.20"
+    "@welshman/util": "0.0.21"
   }
 }
diff --git a/packages/lib/src/Tools.ts b/packages/lib/src/Tools.ts
index 968c487..f6898f9 100644
--- a/packages/lib/src/Tools.ts
+++ b/packages/lib/src/Tools.ts
@@ -109,7 +109,7 @@ export const difference = <T>(a: T[], b: T[]) => {
   return a.filter(x => !s.has(x))
 }
 
-export const remove = <T>(a: T, b: T[]) => b.filter(x => x !== a)
+export const remove = <T>(a: T, xs: T[]) => xs.filter(x => x !== a)
 
 export const without = <T>(a: T[], b: T[]) => b.filter(x => !a.includes(x))
 
diff --git a/packages/net/package.json b/packages/net/package.json
index c26a04c..638c986 100644
--- a/packages/net/package.json
+++ b/packages/net/package.json
@@ -32,7 +32,7 @@
   },
   "dependencies": {
     "@welshman/lib": "0.0.11",
-    "@welshman/util": "0.0.20",
+    "@welshman/util": "0.0.21",
     "isomorphic-ws": "^5.0.0",
     "ws": "^8.16.0"
   }
diff --git a/packages/util/package.json b/packages/util/package.json
index f387147..848c999 100644
--- a/packages/util/package.json
+++ b/packages/util/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@welshman/util",
-  "version": "0.0.20",
+  "version": "0.0.21",
   "author": "hodlbod",
   "license": "MIT",
   "description": "A collection of nostr-related utilities.",
diff --git a/packages/util/src/Kinds.ts b/packages/util/src/Kinds.ts
index ec1dc11..4122ef5 100644
--- a/packages/util/src/Kinds.ts
+++ b/packages/util/src/Kinds.ts
@@ -119,6 +119,7 @@ export const NAMED_WIKI_RELAYS = 30102
 export const NAMED_EMOJIS = 30030
 export const NAMED_TOPICS = 30015
 export const NAMED_ARTIFACTS = 30063
+export const NAMED_COMMUNITIES = 30064
 export const BADGES = 30008
 export const BADGE_DEFINITION = 30009
 export const STALL = 30017