diff --git a/app/api/inngest/functions/index_post_mention.ts b/app/api/inngest/functions/index_post_mention.ts
index 591874fe..726c4c3a 100644
--- a/app/api/inngest/functions/index_post_mention.ts
+++ b/app/api/inngest/functions/index_post_mention.ts
@@ -5,6 +5,7 @@ import { Json } from "supabase/database.types";
 import { ids } from "lexicons/api/lexicons";
 import { Notification, pingIdentityToUpdateNotification } from "src/notifications";
 import { v7 } from "uuid";
+import { idResolver } from "app/(home-pages)/reader/idResolver";
 
 export const index_post_mention = inngest.createFunction(
   { id: "index_post_mention" },
@@ -13,17 +14,52 @@ export const index_post_mention = inngest.createFunction(
     let url = new URL(event.data.document_link);
     let path = url.pathname.split("/").filter(Boolean);
 
-    let { data: pub, error } = await supabaseServerClient
-      .from("publications")
-      .select("*")
-      .eq("record->>base_path", url.host)
-      .single();
+    // Check if this is a standalone document URL (/p/didOrHandle/rkey/...)
+    const isStandaloneDoc = path[0] === "p" && path.length >= 3;
 
-    if (!pub) {
-      return {
-        message: `No publication found for ${url.host}/${path[0]}`,
-        error,
-      };
+    let documentUri: string;
+    let authorDid: string;
+
+    if (isStandaloneDoc) {
+      // Standalone doc: /p/didOrHandle/rkey/l-quote/...
+      const didOrHandle = decodeURIComponent(path[1]);
+      const rkey = path[2];
+
+      // Resolve handle to DID if necessary
+      let did = didOrHandle;
+      if (!didOrHandle.startsWith("did:")) {
+        const resolved = await step.run("resolve-handle", async () => {
+          return idResolver.handle.resolve(didOrHandle);
+        });
+        if (!resolved) {
+          return { message: `Could not resolve handle: ${didOrHandle}` };
+        }
+        did = resolved;
+      }
+
+      documentUri = AtUri.make(did, ids.PubLeafletDocument, rkey).toString();
+      authorDid = did;
+    } else {
+      // Publication post: look up by custom domain
+      let { data: pub, error } = await supabaseServerClient
+        .from("publications")
+        .select("*")
+        .eq("record->>base_path", url.host)
+        .single();
+
+      if (!pub) {
+        return {
+          message: `No publication found for ${url.host}/${path[0]}`,
+          error,
+        };
+      }
+
+      documentUri = AtUri.make(
+        pub.identity_did,
+        ids.PubLeafletDocument,
+        path[0],
+      ).toString();
+      authorDid = pub.identity_did;
     }
 
     let bsky_post = await step.run("get-bsky-post-data", async () => {
@@ -39,12 +75,6 @@ export const index_post_mention = inngest.createFunction(
       return { message: `No post found for ${event.data.post_uri}` };
     }
 
-    const documentUri = AtUri.make(
-      pub.identity_did,
-      ids.PubLeafletDocument,
-      path[0],
-    ).toString();
-
     await step.run("index-bsky-post", async () => {
       await supabaseServerClient.from("bsky_posts").upsert({
         uri: bsky_post.uri,
@@ -60,12 +90,12 @@ export const index_post_mention = inngest.createFunction(
 
     await step.run("create-notification", async () => {
       // Only create notification if the quote is from someone other than the author
-      if (bsky_post.author.did !== pub.identity_did) {
+      if (bsky_post.author.did !== authorDid) {
         // Check if a notification already exists for this post and recipient
         const { data: existingNotification } = await supabaseServerClient
           .from("notifications")
           .select("id")
-          .eq("recipient", pub.identity_did)
+          .eq("recipient", authorDid)
           .eq("data->>type", "quote")
           .eq("data->>bsky_post_uri", bsky_post.uri)
           .eq("data->>document_uri", documentUri)
@@ -74,7 +104,7 @@ export const index_post_mention = inngest.createFunction(
         if (!existingNotification) {
           const notification: Notification = {
             id: v7(),
-            recipient: pub.identity_did,
+            recipient: authorDid,
             data: {
               type: "quote",
               bsky_post_uri: bsky_post.uri,
@@ -82,7 +112,7 @@ export const index_post_mention = inngest.createFunction(
             },
           };
           await supabaseServerClient.from("notifications").insert(notification);
-          await pingIdentityToUpdateNotification(pub.identity_did);
+          await pingIdentityToUpdateNotification(authorDid);
         }
       }
     });