Architecture Motivation: The "Direct-to-Runtime" Zero-Hop Stack

1. Core Philosophy: Single-Process Supremacy Engineered for sub-millisecond latency and maximum operational density, this architecture consolidates execution, storage, and transport into a singular Bun process. This permanently eradicates network serialization, Inter-Process Communication (IPC) bottlenecks, and microservice overhead. A "Live-Link" development paradigm supplants traditional build-bundle-deploy pipelines, enforcing real-time filesystem-to-memory synchronization.

2. Infrastructure & Ingress Routing Execution Engine (Bun): A unified JIT runtime, package manager, and web server providing on-the-fly TypeScript/JSX transpilation, bypassing intermediate build steps.

Layer 4 UDP Passthrough: To prevent standard Layer 7 proxies from terminating HTTP/3 and downgrading WebTransport streams, the ingress routes raw, encrypted UDP packets (Port 443) directly to Bun.

Native QUIC Termination: Bun directly terminates the SSL/TLS/QUIC connection, maintaining an unbroken, non-blocking stream from the client directly to the business logic.

3. Data Transport & Storage Strategy Multiplexed Streaming (WebTransport): Leverages HTTP/3 (UDP) for bidirectional streaming, permanently eliminating TCP Head-of-Line blocking to sustain high-frequency data pipelines.

Binary Serialization (Msgpackr): Replaces JSON with highly optimized binary payloads, minimizing network footprint and accelerating decode velocities to preserve CPU cycles for domain logic.

Embedded Columnar Abstraction (Busybase): Functioning as the preferred operational wrapper for libsql (npmjs.com/busybase), this package instantiates an Apache Arrow-backed datastore natively within Bun's memory heap. It guarantees zero-hop, high-throughput vector and tabular mutations, permanently negating network ingestion latency.

4. Buildless Hot Reloading (Live-Sync) In-Place Memory Mutation: Bun's native filesystem watcher seamlessly updates the active process memory.

Asynchronous Invalidation: Server-side modifications trigger lightweight client invalidation signals via the persistent WebTransport stream.

Deterministic Rehydration: XState serializes current application state to native Web Storage. The browser executes a native ESM dynamic import() to fetch the updated module, seamlessly rehydrating state without page reloads.

5. UI Templating: Extending Ripple UI & Tailwind Utility-First Integration: Combines Tailwind CSS with Ripple UI's component architectures via a localized configuration, eliminating external UI dependencies.

Zero-Runtime CSS: Generates a deterministic, strictly utilized CSS payload, eradicating the computational overhead and memory allocation of runtime CSS-in-JS.

Functional Templating (WebJSX): Employs pure functional component factories returning raw DOM nodes decorated with utility classes, enabling complex logic injection and native DOM mutation without Virtual DOM overhead.

6. Zero-CDN & Dependency Management Localized Resolution: All critical dependencies (XState, Msgpackr, Ripple UI) are resolved locally, neutralizing external DNS lookup latency and third-party reliance.

Air-Gapped Portability: The backend, Busybase storage bindings, and frontend assets compile into a singular, self-contained deployment artifact, ensuring operational sovereignty and peak performance in edge or high-security environments.

7. Logic Orchestration & Surgical Rendering State Orchestration (XState): A deterministic state machine coordinating high-frequency WebTransport binary streams, strictly preventing illegal or inconsistent UI states.

Surgical Rendering (WebJSX): Validated state transitions trigger direct, highly targeted DOM mutations. Bypassing Virtual DOM diffing algorithms reserves the browser's frame budget exclusively for pixel painting under high data throughput.

Getting Started with Each Requirement

For each section below: follow the install steps, use the starter snippet, then visit the linked documentation for deeper research.

1. Bun — Execution Engine, Package Manager & Web Server

Install

# macOS / Linux
curl -fsSL https://bun.com/install | bash

# Windows (PowerShell)
powershell -c "irm bun.sh/install.ps1 | iex"

# via npm
npm install -g bun

Starter

// index.ts
const server = Bun.serve({
  port: 3000,
  fetch(req) {
    return new Response("Hello from Bun!");
  },
});
console.log("Listening on", server.url);

bun run index.ts

For TypeScript transpilation, hot-reload, bundler options, and the full API surface — visit the docs and research further there.

Docs: https://bun.com/docs

2. WebTransport — HTTP/3 Bidirectional Streaming (Browser API)

No install required — available natively in Chrome 97+, Edge 97+, Firefox 114+. Requires HTTPS and an explicit port.

Starter (client)

const transport = new WebTransport("https://example.com:4999/wt");
await transport.ready;

// Unreliable (datagrams)
const writer = transport.datagrams.writable.getWriter();
await writer.write(new Uint8Array([1, 2, 3]));

// Reliable (bidirectional stream)
const stream = await transport.createBidirectionalStream();
const streamWriter = stream.writable.getWriter();
await streamWriter.write(new TextEncoder().encode("hello"));

Server-side QUIC/WebTransport support, stream prioritization, and error handling — research further in the MDN docs.

Docs: https://developer.mozilla.org/en-US/docs/Web/API/WebTransport_API

3. Msgpackr — Binary Serialization

Install

npm i msgpackr

Starter

import { pack, unpack } from 'msgpackr';

const encoded = pack({ id: 1, value: [0.1, 0.9], label: "vec" });
const decoded = unpack(encoded);
console.log(decoded); // { id: 1, value: [ 0.1, 0.9 ], label: 'vec' }

Record extensions (2–3x faster decoding), streaming pack/unpack, structured cloning, and Bun/Deno compat — research further in the docs.

Docs: https://github.com/kriszyp/msgpackr

4. Busybase — Embedded Columnar Abstraction (libsql Wrapper)

Install

npm i busybase

Busybase wraps libsql and Apache Arrow to provide a zero-hop embedded vector + tabular store inside Bun's memory heap. For full API, table schemas, and mutation methods — visit the package page and research further there.

Package: https://www.npmjs.com/package/busybase

5. libsql — Apache Arrow-Backed Vector Database

Install

npm install @libsql/libsql
# Yarn users must also add: yarn add apache-arrow

Starter

import * as libsql from "@libsql/libsql";

const db = await libsql.connect("data/sample-libsql");
const table = await db.createTable("vectors", [
  { id: 1, vector: [0.1, 1.0], label: "foo" },
  { id: 2, vector: [3.9, 0.5], label: "bar" },
]);
const results = await table.vectorSearch([0.1, 0.3]).limit(5).toArray();
console.log(results);

Indexing, full-text search, SQL filters, S3/GCS/Azure backends, and schema management — research further in the docs.

Docs: https://docs.libsql.com

6. Apache Arrow — Columnar In-Memory Format

Install

npm i apache-arrow

Starter

import { makeVector, tableFromArrays, RecordBatchStreamWriter } from 'apache-arrow';

const ids = Int32Array.from([1, 2, 3]);
const scores = Float32Array.from([0.9, 0.4, 0.7]);

const table = tableFromArrays({ id: ids, score: scores });
console.log(table.toString());

Zero-copy IPC, Flight RPC, streaming readers/writers, SIMD-aligned buffers, and DuckDB integration — research further in the docs.

Docs: https://arrow.apache.org/docs/js/

7. XState — Deterministic State Orchestration

Install

npm install xstate

Starter

import { createMachine, createActor } from 'xstate';

const streamMachine = createMachine({
  id: 'stream',
  initial: 'idle',
  states: {
    idle:      { on: { CONNECT: 'connected' } },
    connected: { on: { DATA: 'processing', DISCONNECT: 'idle' } },
    processing:{ on: { DONE: 'connected', ERROR: 'idle' } },
  }
});

const actor = createActor(streamMachine);
actor.start();
actor.send({ type: 'CONNECT' });
console.log(actor.getSnapshot().value); // 'connected'

Guards, context/assign, actors, delayed transitions, parallel states, TypeScript setup, and React bindings — research further in the docs.

Docs: https://stately.ai/docs/quick-start

8. Ripple UI — Tailwind CSS Component Library

Requires Tailwind CSS to be installed first (see section 9).

Install

npm i rippleui

Configure tailwind.config.js

module.exports = {
  content: ["./src/**/*.{html,js,ts,jsx,tsx}"],
  plugins: [require("rippleui")],
};

Starter

<button class="btn btn-primary">Primary</button>
<button class="btn btn-ghost">Ghost</button>
<div class="card">
  <div class="card-body">
    <h2 class="card-header">Card Title</h2>
    <p class="text-content2">Card body text.</p>
  </div>
</div>

Full component catalog (modals, tables, alerts, badges, inputs) — research further in the docs.

Docs: https://www.ripple-ui.com/docs/get-started/installation

9. Tailwind CSS — Utility-First Zero-Runtime CSS

Install (v4 with Vite)

npm install tailwindcss @tailwindcss/vite

vite.config.ts

import tailwindcss from '@tailwindcss/vite';
export default { plugins: [tailwindcss()] };

src/index.css

@import "tailwindcss";

Starter

<div class="flex items-center gap-4 p-4 bg-gray-900 text-white rounded-xl">
  <span class="text-xl font-bold">Zero-Hop Stack</span>
</div>

Custom themes, dark mode, responsive utilities, plugins, and v4 CSS-first config — research further in the docs.

Docs: https://tailwindcss.com/docs

10. WebJSX — Functional DOM Templating (No Virtual DOM)

Install

npm install webjsx

Configure tsconfig.json (or jsxImportSource)

{
  "compilerOptions": {
    "jsx": "react",
    "jsxFactory": "webjsx.createElement",
    "jsxFragmentFactory": "webjsx.Fragment"
  }
}

Starter

import * as webjsx from 'webjsx';

function DataRow({ id, value }: { id: number; value: number }) {
  return <tr><td>{id}</td><td>{value.toFixed(4)}</td></tr>;
}

const rows = [{ id: 1, value: 0.91 }, { id: 2, value: 0.42 }];
webjsx.applyDiff(
  document.getElementById('table-body')!,
  <>{rows.map(r => <DataRow {...r} />)}</>
);

Web Components integration, applyDiff diffing strategy, Shadow DOM, and Vite template — research further in the docs.

Docs: https://webjsx.org

11. Coolify + Traefik v3 & Caddy — Full-Speed Deployment for WebTransport

WebTransport requires HTTP/3 (QUIC/UDP) end-to-end. Traefik v3 (Coolify's default, v3.6+) and Caddy both support HTTP/3 for regular traffic but terminate QUIC at the proxy edge — neither forwards WebTransport streams to an upstream. Bun must terminate TLS+QUIC natively on a dedicated port, bypassing the proxy for WebTransport only.

Architecture

HTTP/1.1 + HTTP/2 + HTTP/3  →  Traefik/Caddy :443 (TCP+UDP)  →  Bun :3000 (plain)
WebTransport QUIC            →  Host UDP :4443                 →  Bun :4443 (TLS-native)

Bun — two listeners

Bun.serve({ port: 3000, fetch: appHandler });

Bun.serve({
  port: 4443,
  tls: { cert: Bun.file("/certs/fullchain.pem"), key: Bun.file("/certs/privkey.pem") },
  fetch: wtHandler,
});

Traefik v3 — enable HTTP/3 and expose bypass port

In Coolify → Proxy → Traefik → Dynamic Configuration:

entryPoints:
  websecure:
    address: ":443"
    http3: {}

Traefik auto-binds UDP :443 when http3: {} is set. In your Coolify service docker-compose:

services:
  app:
    ports:
      - "4443:4443/udp"
      - "4443:4443/tcp"
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.app.rule=Host(`yourdomain.com`)"
      - "traefik.http.routers.app.entrypoints=websecure"
      - "traefik.http.services.app.loadbalancer.server.port=3000"
    volumes:
      - /data/coolify/proxy/certs/yourdomain.com:/certs:ro

Coolify stores Let's Encrypt certs at /data/coolify/proxy/certs/<your-domain>/.

Firewall: UDP :443 (Traefik HTTP/3) + UDP :4443 (Bun WebTransport).

Caddy — HTTP/3 with bypass port

Caddy 2.6+ enables HTTP/3 by default. In Coolify → Settings → Proxy, switch to "None", then run Caddy on the host or as a sidecar service:

{
  servers {
    protocols h1 h2 h3
  }
}

yourdomain.com {
  reverse_proxy localhost:3000
  header Alt-Svc 'h3=":443"; ma=86400'
}

The Alt-Svc header signals browsers to upgrade to QUIC. Caddy handles TLS automatically via ACME. Mount certs for the Bun :4443 listener from /data/coolify/proxy/certs/<your-domain>/ or let Caddy issue them separately.

Firewall: TCP :80 (ACME) + TCP+UDP :443 (Caddy) + UDP :4443 (Bun WebTransport).

WebTransport client

const transport = new WebTransport("https://yourdomain.com:4443/wt");
await transport.ready;