diff --git a/.jules/bolt.md b/.jules/bolt.md
index 9345ee7a..c54f2cad 100644
--- a/.jules/bolt.md
+++ b/.jules/bolt.md
@@ -2,3 +2,8 @@
 
 **Learning:** In Next.js/React applications, when grouping items (like schedules or talks) into a `Map` where the values are arrays, using the array spread operator `[...existing, item]` inside a loop (like `forEach` or `map`) causes amortized O(N^2) memory allocations and unnecessary Garbage Collection overhead.
 **Action:** Always use `.push()` on the existing array reference if the data structure permits local mutation. For strict ESLint configurations enforcing `no-restricted-syntax`, extract the existing array, push to it, and handle the fallback elegantly (`if (!existing) { map.set(key, [item]); } else { existing.push(item); }`).
+
+## 2024-05-18 - Single-Pass Iteration for Display Elements
+
+**Learning:** When generating page metadata or filtering elements by a URL parameter, it is common to perform an O(N) traversal (like `.flatMap(...).find(...)`) to find a valid display string, and then perform a second O(N) pass to filter the elements. This causes redundant string allocations and nested iterations.
+**Action:** Always combine lookup iterations into the primary filtering loop if possible. To maintain strict `no-restricted-syntax` rules that forbid `let` declarations while mutating local tracking variables inside a `.some()` or `.filter()` loop, utilize a `const state = { displayTag?: string }` object and assign values to it when matches are found. This allows safe, early-breaking single-pass algorithms.
diff --git a/app/2026/tags/[tag]/page.tsx b/app/2026/tags/[tag]/page.tsx
index 5c9a6ebc..2b2e7202 100644
--- a/app/2026/tags/[tag]/page.tsx
+++ b/app/2026/tags/[tag]/page.tsx
@@ -40,8 +40,22 @@ export async function generateMetadata({ params }: { params: Promise<{ tag: stri
 
   const sessionGroups = await getTalks(year);
   const allTalks = sessionGroups.flatMap((group) => group.sessions);
-  const displayTag =
-    allTalks.flatMap(getTagsFromTalk).find((t) => t.replaceAll(" ", "-").toLowerCase() === decodedTag.toLowerCase()) ?? decodedTag.replaceAll("-", " ");
+  const targetTag = decodedTag.toLowerCase();
+  const state: { displayTag?: string } = {};
+  for (const talk of allTalks) {
+    const talkTags = getTagsFromTalk(talk);
+    const match = talkTags.some((t) => {
+      if (t.replaceAll(" ", "-").toLowerCase() === targetTag) {
+        state.displayTag = t;
+        return true;
+      }
+      return false;
+    });
+    if (match) {
+      break;
+    }
+  }
+  const displayTag = state.displayTag ?? decodedTag.replaceAll("-", " ");
 
   return {
     title: `Talks tagged "${displayTag}" - DevBcn ${year}`,
@@ -58,15 +72,22 @@ export default async function Page({ params }: { params: Promise<{ tag: string }
   const sessionGroups = await getTalks(year);
   const allTalks = sessionGroups.flatMap((group) => group.sessions);
 
-  const displayTag =
-    allTalks.flatMap(getTagsFromTalk).find((t) => t.replaceAll(" ", "-").toLowerCase() === decodedTag.toLowerCase()) ?? decodedTag.replaceAll("-", " ");
+  const targetTag = decodedTag.toLowerCase();
+  const state: { displayTag?: string } = {};
 
   const filteredTalks = allTalks.filter((talk) => {
     const talkTags = getTagsFromTalk(talk);
-
-    return talkTags.some((t) => t.replaceAll(" ", "-").toLowerCase() === decodedTag.toLowerCase());
+    return talkTags.some((t) => {
+      if (t.replaceAll(" ", "-").toLowerCase() === targetTag) {
+        if (!state.displayTag) state.displayTag = t;
+        return true;
+      }
+      return false;
+    });
   });
 
+  const displayTag = state.displayTag ?? decodedTag.replaceAll("-", " ");
+
   if (filteredTalks.length === 0) {
     notFound();
   }
diff --git a/app/[year]/tags/[tag]/page.tsx b/app/[year]/tags/[tag]/page.tsx
index 35c74f61..f67084da 100644
--- a/app/[year]/tags/[tag]/page.tsx
+++ b/app/[year]/tags/[tag]/page.tsx
@@ -47,8 +47,22 @@ export async function generateMetadata({ params }: Readonly<TagPageProps>): Prom
 
   const sessionGroups = await getTalks(year);
   const allTalks = sessionGroups.flatMap((group) => group.sessions);
-  const displayTag =
-    allTalks.flatMap(getTagsFromTalk).find((t) => t.replaceAll(" ", "-").toLowerCase() === decodedTag.toLowerCase()) ?? decodedTag.replaceAll("-", " ");
+  const targetTag = decodedTag.toLowerCase();
+  const state: { displayTag?: string } = {};
+  for (const talk of allTalks) {
+    const talkTags = getTagsFromTalk(talk);
+    const match = talkTags.some((t) => {
+      if (t.replaceAll(" ", "-").toLowerCase() === targetTag) {
+        state.displayTag = t;
+        return true;
+      }
+      return false;
+    });
+    if (match) {
+      break;
+    }
+  }
+  const displayTag = state.displayTag ?? decodedTag.replaceAll("-", " ");
 
   return {
     title: `Talks tagged "${displayTag}" - DevBcn ${year}`,
@@ -64,15 +78,22 @@ export default async function TagPage({ params }: Readonly<TagPageProps>) {
   const sessionGroups = await getTalks(year);
   const allTalks = sessionGroups.flatMap((group) => group.sessions);
 
-  const displayTag =
-    allTalks.flatMap(getTagsFromTalk).find((t) => t.replaceAll(" ", "-").toLowerCase() === decodedTag.toLowerCase()) ?? decodedTag.replaceAll("-", " ");
+  const targetTag = decodedTag.toLowerCase();
+  const state: { displayTag?: string } = {};
 
   const filteredTalks = allTalks.filter((talk) => {
     const talkTags = getTagsFromTalk(talk);
-
-    return talkTags.some((t) => t.replaceAll(" ", "-").toLowerCase() === decodedTag.toLowerCase());
+    return talkTags.some((t) => {
+      if (t.replaceAll(" ", "-").toLowerCase() === targetTag) {
+        if (!state.displayTag) state.displayTag = t;
+        return true;
+      }
+      return false;
+    });
   });
 
+  const displayTag = state.displayTag ?? decodedTag.replaceAll("-", " ");
+
   if (filteredTalks.length === 0) {
     notFound();
   }