diff --git a/tests/package/postv1-runtime.test.mjs b/tests/package/postv1-runtime.test.mjs
new file mode 100644
index 0000000..d69132c
--- /dev/null
+++ b/tests/package/postv1-runtime.test.mjs
@@ -0,0 +1,82 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+import { mkdtemp, mkdir, readFile, rm, writeFile } from "node:fs/promises";
+import { existsSync } from "node:fs";
+import { join, resolve } from "node:path";
+import { tmpdir } from "node:os";
+import { spawn } from "node:child_process";
+
+const packageRoot = resolve(process.env.DADA_POSTV1_PACKAGE_ROOT ?? ".build/portable-release/Dada-P0A-0.0.0-win-x64");
+const port = 43121;
+
+async function waitForHealth(child) {
+  const deadline = Date.now() + 15_000;
+  while (Date.now() < deadline) {
+    if (child.exitCode !== null) throw new Error(`packaged api exited: ${child.exitCode}: ${child.errorOutput ?? ""}`);
+    try {
+      const response = await fetch(`http://127.0.0.1:${port}/healthz`, { headers: { host: `127.0.0.1:${port}` } });
+      if (response.ok) return;
+    } catch {}
+    await new Promise((resolveDelay) => setTimeout(resolveDelay, 100));
+  }
+  throw new Error("packaged api health timeout");
+}
+
+function startApi(configPath, dataRoot) {
+  const child = spawn(join(packageRoot, "runtime", "node.exe"), [join(packageRoot, "server", "api.mjs"), "--dada-credential-stdin"], {
+    cwd: packageRoot,
+    env: { ...process.env, DADA_INSTANCE_CONFIG_PATH: configPath, DADA_SUPPORT_GATE_ROOT: join(packageRoot, "web", "support-gate"), DADA_WEB_ROOT: join(packageRoot, "web") },
+    stdio: ["pipe", "ignore", "pipe"],
+    windowsHide: true,
+  });
+  child.errorOutput = "";
+  child.stderr.setEncoding("utf8");
+  child.stderr.on("data", (chunk) => { child.errorOutput += chunk; });
+  child.stdin.end(JSON.stringify({ "Dada/P0A/api/amap": "", "Dada/P0A/api/resend": "", "Dada/P0A/admin/pepper": "portable-test-pepper-00000000000000000000000000000000" }));
+  return child;
+}
+
+async function stop(child) {
+  if (child.exitCode === null) {
+    child.kill();
+    await new Promise((resolveExit) => child.once("exit", resolveExit));
+  }
+}
+
+test("portable package serves the product and keeps SQLite data across API restart", async () => {
+  assert.ok(existsSync(join(packageRoot, "Dada.exe")));
+  assert.ok(existsSync(join(packageRoot, "web", "index.html")));
+  assert.match(await readFile(join(packageRoot, "server", "worker", "dist", "worker.js"), "utf8"), /GenerationProcessor/);
+  const root = await mkdtemp(join(tmpdir(), "dada-postv1-"));
+  const dataRoot = join(root, "data");
+  await mkdir(join(dataRoot, "db"), { recursive: true });
+  const configPath = join(root, "instance.json");
+  await writeFile(configPath, JSON.stringify({ data_root: dataRoot, initialized: true, instance_id: "portable-test", schema_version: 1, secure_config_revision: 1, admin_allowlist_hashes: [], admin_recovery_hashes: [] }));
+  let api = startApi(configPath, dataRoot);
+  try {
+    await waitForHealth(api);
+    const support = await fetch(`http://127.0.0.1:${port}/api/v1/support/check`, {
+      method: "POST",
+      headers: { host: `127.0.0.1:${port}`, origin: `http://127.0.0.1:${port}`, "content-type": "application/json", "sec-ch-ua": '"Google Chrome";v="150"', "sec-ch-ua-full-version-list": '"Google Chrome";v="150.0.0.0"', "sec-ch-ua-platform": '"Windows"' },
+      body: JSON.stringify({ brands: [{ brand: "Google Chrome", version: "150" }], full_version_list: [{ brand: "Google Chrome", version: "150.0.0.0" }], platform: "Windows" }),
+    });
+    assert.ok([200, 426].includes(support.status));
+    if (support.status === 200) {
+      const cookie = support.headers.get("set-cookie")?.split(";", 1)[0];
+      const page = await fetch(`http://127.0.0.1:${port}/app`, { headers: { host: `127.0.0.1:${port}`, cookie } });
+      assert.equal(page.status, 200);
+      assert.match(await page.text(), /<div id="root"><\/div>/);
+    }
+    assert.ok(existsSync(join(dataRoot, "db", "dada.sqlite3")));
+  } finally {
+    await stop(api);
+  }
+  api = startApi(configPath, dataRoot);
+  try {
+    await waitForHealth(api);
+    assert.ok(existsSync(join(dataRoot, "db", "dada.sqlite3")));
+  } finally {
+    await stop(api);
+    await rm(root, { recursive: true, force: true });
+  }
+});