Forty kilobytes.
A real database.

// app/api/notes/route.ts — server-side only
const endpoint = process.env.ASMDB_ENDPOINT!;
// returned as https://<gateway-host>/db/7k2m9x4qp1va8ne03wjr5tzy
const token = process.env.ASMDB_INSTANCE_TOKEN!;

type Row = { id: string; value: string; tag: string; content: string; created: string; updated: string };

async function asmdb(path: string, init: RequestInit = {}) {
  return fetch(`${endpoint}${path}`, {
    ...init,
    headers: {
      authorization: ["Bearer", token].join(" "),
      "content-type": "application/json",
      ...init.headers
    }
  });
}

export async function GET() {
  const res = await asmdb("/v1/rows?limit=100&offset=0");
  const data = await res.json() as { rows: Row[]; count: number; hasMore: boolean; nextOffset: number };
  return Response.json(data);
}

export async function POST(request: Request) {
  const body = await request.json() as { id: string; value: string; tag: string; content: string };
  const res = await asmdb("/v1/rows", {
    method: "POST",
    body: JSON.stringify(body)
  });
  return Response.json(await res.json() as { row: Row }, { status: res.status });
}