Echo-systems Studio macOS Software House
LLC
Our Products
Independent macOS Software House

Software built for focus, craft, and sovereignty.

Echo-systems Studio LLC creates native, local-first macOS utilities and developer environments. 100% on your machine. Zero cloud lock-in. No recurring subscription fatigue.

Discover Relay (AI Hub) Explore Bracket (Editor)
Engineered in California • Apple Silicon & Universal macOS • One-Time Purchases

Flagship Applications

Tools designed to eliminate developer friction, tame AI workflows, and spark creative momentum.

Relay Flight Tower Interface
● AI Agent Coordination Hub

Relay

The local-first flight control tower for macOS. Supervise autonomous AI coding agents (Claude Code, Cursor, Windsurf) through a review-gated queue with full context sharing and zero cloud leakage.

  • Supervised Autonomy: Review-gated agent actions & proposal diffs
  • Dual Interface: Stdio MCP protocol bridge + localhost:4747 HTTP daemon
  • Cryptographic Security: One-way SHA-256 digital passkeys
View Relay Overview & Specs →
Bracket Live Code Editor
● Native Web Workbench

Bracket

A focused coding environment built for beginners. Instant side-by-side HTML, CSS, and JavaScript preview without terminal configuration, Node dependencies, or broken dev servers.

  • Instant Compilation: Sandboxed live rendering on every keystroke
  • Beginner Safeguards: Tag balance checker & infinite loop guard
  • In-App Syntax Index (⌘8): Instant cheatsheet lookup without tab switching
View Bracket Overview & Interactive Demo →

The Studio Philosophy

How we think about software in an era of cloud lock-in and runaway AI automations.

Data Sovereignty

Your source code, architectural deliberations, and local files never touch external cloud servers. Relay and Bracket store 100% of their operational data directly on your Mac.

Supervised Autonomy

AI should amplify human judgment, not replace it blindly. Destructive code edits, architectural choices, and project milestones should remain gated by human oversight.

Zero Subscription Fatigue

We build tools you can own. No monthly recurring fees, no surprise tier downgrades, and no telemetry bloat. Honest software backed by one-time licensing.

Echo-systems Studio LLC

A registered limited liability software enterprise committed to long-term macOS development, educational access, and developer infrastructure.

Whether you are an independent creator learning web fundamentals or a software architect coordinating multi-agent coding sessions, our utilities are engineered to serve you with precision.

  • Entity Name Echo-systems Studio LLC
  • Primary Platform macOS (Apple Silicon & Universal)
  • Distribution Mac App Store & Direct
  • Privacy Model 100% Local-First / Zero Telemetry
  • Support Inquiries support@bracketlab.us