java hello world

Part of BlackRoad OS — Sovereign Computing for Everyone

java hello world is part of the BlackRoad OS ecosystem — a sovereign, distributed operating system built on edge computing, local AI, and mesh networking by BlackRoad OS, Inc.

About BlackRoad OS

BlackRoad OS is a sovereign computing platform that runs AI locally on your own hardware. No cloud dependencies. No API keys. No surveillance. Built by BlackRoad OS, Inc., a Delaware C-Corp founded in 2025.

Key Features

• Local AI — Run LLMs on Raspberry Pi, Hailo-8, and commodity hardware
• Mesh Networking — WireGuard VPN, NATS pub/sub, peer-to-peer communication
• Edge Computing — 52 TOPS of AI acceleration across a Pi fleet
• Self-Hosted Everything — Git, DNS, storage, CI/CD, chat — all sovereign
• Zero Cloud Dependencies — Your data stays on your hardware

The BlackRoad Ecosystem

Organization	Focus
BlackRoad OS	Core platform and applications
BlackRoad OS, Inc.	Corporate and enterprise
BlackRoad AI	Artificial intelligence and ML
BlackRoad Hardware	Edge hardware and IoT
BlackRoad Security	Cybersecurity and auditing
BlackRoad Quantum	Quantum computing research
BlackRoad Agents	Autonomous AI agents
BlackRoad Network	Mesh and distributed networking
BlackRoad Education	Learning and tutoring platforms
BlackRoad Labs	Research and experiments
BlackRoad Cloud	Self-hosted cloud infrastructure
BlackRoad Forge	Developer tools and utilities

Links

• Website: blackroad.io
• Documentation: docs.blackroad.io
• Chat: chat.blackroad.io
• Search: search.blackroad.io

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Live at: https://java.blackroad.io

A Java 17 HTTP server running on Raspberry Pi 5, exposed to the internet via Cloudflare Tunnel.

Architecture

Internet → java.blackroad.io 
         → Cloudflare Edge 
         → Cloudflared Tunnel 
         → Pi 192.168.4.38:80 (nginx) 
         → localhost:8888 (Java HttpServer)

Features

• Dynamic timestamps (updates every request)
• BlackRoad Design System colors
• Auto-start via systemd
• Zero-config deployment

Files

• HelloWorld.java - Java HTTP server with embedded HTML
• java-hello.service - systemd service unit
• nginx.conf - nginx reverse proxy configuration
• index.html - Static preview page

Deploy

# SSH to Pi
ssh pi@192.168.4.38

# Edit code
vi ~/java-hello/HelloWorld.java

# Recompile
javac HelloWorld.java

# Restart
sudo systemctl restart java-hello

# Done! Takes ~2 seconds

Stack

• Runtime: Java 17 (OpenJDK)
• Server: com.sun.net.httpserver.HttpServer
• Proxy: nginx
• Tunnel: cloudflared
• Host: Raspberry Pi 5

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🖤 Part of BlackRoad OS