diff --git a/app/(app)/about/page.tsx b/app/(app)/about/page.tsx
new file mode 100644
index 0000000..37fa106
--- /dev/null
+++ b/app/(app)/about/page.tsx
@@ -0,0 +1,52 @@
+"use client";
+
+import React from "react";
+
+export default function Page() {
+  return (
+    <main className="mx-auto max-w-3xl px-4 py-10">
+      <h1 className="text-3xl font-bold tracking-tight mb-4">
+        About Ballistic Builder
+      </h1>
+
+      <p className="text-sm text-muted-foreground mb-8">
+        Last updated: {new Date().getFullYear()}
+      </p>
+
+      <section className="space-y-4">
+        <p className="text-base leading-relaxed">
+          Ballistic Builder is a tooling and catalog platform designed to make
+          it easier to explore, compare, and assemble builds from across
+          multiple merchants. Our goal is to give builders fast, clear,
+          high‑signal information so they can focus on decisions, not data
+          wrangling.
+        </p>
+
+        <p className="text-base leading-relaxed">
+          Behind the scenes, we normalize merchant feeds, track offers, and
+          surface structured parts data. On the front end, we present that data
+          in a way that’s optimized for building, not just browsing.
+        </p>
+
+        <p className="text-base leading-relaxed">
+          This project is under active development. Expect frequent iteration,
+          new features, and occasional sharp edges as we ship and refine.
+        </p>
+      </section>
+
+      <section className="mt-10 space-y-3">
+        <h2 className="text-xl font-semibold">Contact</h2>
+        <p className="text-base leading-relaxed">
+          For questions, feedback, or bug reports, reach out to us at{" "}
+          <a
+            href="mailto:support@example.com"
+            className="underline underline-offset-4"
+          >
+            support@example.com
+          </a>
+          .
+        </p>
+      </section>
+    </main>
+  );
+}
diff --git a/lib/constants.tsx b/lib/constants.tsx
new file mode 100644
index 0000000..4967eaa
--- /dev/null
+++ b/lib/constants.tsx
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+// Central place for app-wide constant values.
+
+// Branding / product
+export const APP_NAME = "Ballistic Builder";
+export const APP_TAGLINE = "A smarter way to explore and assemble builds.";
+
+// URLs
+export const SUPPORT_EMAIL = "support@example.com";
+export const CONTACT_EMAIL = "contact@example.com";
+
+export const EXTERNAL_LINKS = {
+  homepage: "https://example.com",
+  docs: "https://example.com/docs",
+  status: "https://status.example.com",
+};
+
+// Feature flags (non-secret, UI-only switches)
+export const FEATURE_FLAGS = {
+  showExperimentalBuilder: false,
+  enablePriceHistory: true,
+  enablePublicBuilds: false,
+} as const;
+
+// Layout / UI
+export const DEFAULT_PAGE_SIZE = 25;
+export const MAX_PAGE_SIZE = 100;
+
+// Date / format
+export const DISPLAY_DATE_FORMAT = "MMM d, yyyy";
+
+// Routes
+export const ROUTES = {
+  home: "/",
+  about: "/about",
+  login: "/login",
+  register: "/register",
+  builder: "/builds",
+  account: "/account",
+} as const;