diff --git a/app/routes.ts b/app/routes.ts
index 602d51a..3df1392 100644
--- a/app/routes.ts
+++ b/app/routes.ts
@@ -43,5 +43,6 @@ export default [
   route("/api/insights", "routes/api.insights.ts"),
   route("/api/export/tax", "routes/api.export.tax.ts"),
   route("/api/inventory/search", "routes/api.inventory.search.ts"),
+  route("/:username", "routes/$username.tsx"),
   route("/api/integrations", "routes/api.integrations.ts"),
 ] satisfies RouteConfig;
diff --git a/app/routes/$username.tsx b/app/routes/$username.tsx
new file mode 100644
index 0000000..dce2c95
--- /dev/null
+++ b/app/routes/$username.tsx
@@ -0,0 +1,68 @@
+import { useLoaderData } from "react-router";
+import type { Route } from "./+types/$username";
+import { PrismaClient } from "@prisma/client";
+
+const prisma = new PrismaClient();
+
+export async function loader({ params }: Route.LoaderArgs) {
+  const { username } = params;
+
+  const user = await prisma.user.findUnique({
+    where: { username },
+    select: { id: true, name: true, username: true, avatarUrl: true },
+  });
+
+  if (!user) throw new Response("Not Found", { status: 404 });
+
+  const items = await prisma.inventoryItem.findMany({
+    where: { userId: user.id, isPublic: true },
+    select: {
+      id: true,
+      name: true,
+      brand: true,
+      sku: true,
+      size: true,
+      condition: true,
+      status: true,
+      askingPrice: true,
+      imageUrl: true,
+      category: true,
+      tags: true,
+    },
+    orderBy: { createdAt: "desc" },
+  });
+
+  return {
+    user,
+    items: items.map((item) => ({
+      ...item,
+      askingPrice: item.askingPrice ? Number(item.askingPrice) : null,
+    })),
+  };
+}
+
+export default function PublicShowroom() {
+  const { user, items } = useLoaderData<typeof loader>();
+
+  return (
+    <div style={{ maxWidth: 900, margin: "0 auto", padding: "2rem" }}>
+      <h1>{user.name ?? user.username}&apos;s Showroom</h1>
+      {items.length === 0 ? (
+        <p>No items listed for sale.</p>
+      ) : (
+        <div style={{ display: "grid", gridTemplateColumns: "repeat(auto-fill, minmax(220px, 1fr))", gap: "1rem" }}>
+          {items.map((item) => (
+            <div key={item.id} style={{ border: "1px solid var(--color-border)", borderRadius: 8, padding: "1rem" }}>
+              {item.imageUrl && <img src={item.imageUrl} alt={item.name} style={{ width: "100%", borderRadius: 4 }} />}
+              <h3 style={{ margin: "0.5rem 0 0.25rem" }}>{item.name}</h3>
+              <p style={{ margin: 0, fontSize: 14, color: "var(--color-text-muted)" }}>{item.brand} · {item.size}</p>
+              <p style={{ margin: "0.5rem 0 0", fontWeight: 600 }}>
+                {item.askingPrice ? `$${item.askingPrice.toFixed(2)}` : "Price on request"}
+              </p>
+            </div>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}
diff --git a/package-lock.json b/package-lock.json
index fde8452..7753209 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4017,6 +4017,7 @@
       "version": "2.3.3",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
       "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
+      "dev": true,
       "hasInstallScript": true,
       "license": "MIT",
       "optional": true,
diff --git a/prisma/migrations/20260701_add_username_and_ispublic/migration.sql b/prisma/migrations/20260701_add_username_and_ispublic/migration.sql
new file mode 100644
index 0000000..38c257a
--- /dev/null
+++ b/prisma/migrations/20260701_add_username_and_ispublic/migration.sql
@@ -0,0 +1,6 @@
+-- Add username to User model
+ALTER TABLE "User" ADD COLUMN "username" TEXT;
+CREATE UNIQUE INDEX "User_username_key" ON "User"("username");
+
+-- Add isPublic to InventoryItem model
+ALTER TABLE "InventoryItem" ADD COLUMN "isPublic" BOOLEAN NOT NULL DEFAULT false;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 1c71dde..f49b283 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -96,26 +96,27 @@ enum Theme {
 // ─── CORE MODELS ──────────────────────────────────────────────────────────────
 
 model User {
-  id                  String   @id @default(uuid())
-  email               String   @unique
-  name                String?
-  avatarUrl           String?
-  plan                Plan     @default(FREE)
-  stripeCustomerId    String?  @unique
-  stripeSubId         String?  @unique
-  currency            Currency @default(USD)
-  theme               Theme    @default(LIGHT)
-  phone               String?
-  pushEndpoint        String? // Web push subscription JSON
-  emailNotifications  Boolean  @default(true)
-  smsNotifications    Boolean  @default(false)
-  pushNotifications   Boolean  @default(false)
-  weeklySummary       Boolean  @default(true)
-  priceAlertTriggered Boolean  @default(true)
-  teamId              String?
-  role                String   @default("owner") // owner | member (team)
-  createdAt           DateTime @default(now())
-  updatedAt           DateTime @updatedAt
+  id                String         @id @default(uuid())
+  email             String         @unique
+  username          String?        @unique
+  name              String?
+  avatarUrl         String?
+  plan              Plan           @default(FREE)
+  stripeCustomerId  String?        @unique
+  stripeSubId       String?        @unique
+  currency          Currency       @default(USD)
+  theme             Theme          @default(LIGHT)
+  phone             String?
+  pushEndpoint      String?        // Web push subscription JSON
+  emailNotifications  Boolean       @default(true)
+  smsNotifications    Boolean       @default(false)
+  pushNotifications   Boolean       @default(false)
+  weeklySummary       Boolean       @default(true)
+  priceAlertTriggered Boolean       @default(true)
+  teamId            String?
+  role              String         @default("owner") // owner | member (team)
+  createdAt         DateTime       @default(now())
+  updatedAt         DateTime       @updatedAt
 
   inventory         InventoryItem[]
   sales             Sale[]
@@ -168,6 +169,7 @@ model InventoryItem {
   askingPrice   Decimal?      @db.Decimal(10, 2)
   notes         String?
   imageUrl      String?
+  isPublic      Boolean       @default(false)
   currency      Currency      @default(USD)
   tags          String[] // flexible tags
   createdAt     DateTime      @default(now())