The Sylin mark - a glowing bulb planted in the grounds
Independent software for responsible delight

Tools that answer to you.

Developer frameworks, home-lab infrastructure, and tools for AI agents that feel good to use without asking you to surrender visibility or control. They run on your hardware and keep working without us.

Responsible delight, built under The Way

Useful enough to want. Clear enough to trust. Yours enough to keep.

Responsibility and delight are not opposites. A thoughtful tool can be fast, calm, and satisfying while still showing its boundaries, evidence, and current limits.

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Local-first
Your hardware, your network. No cloud in the critical path.
Agent-native
Compact tools, corrective errors, and less guesswork for the agent.
Continuity
Nothing phones home. You pay for governance, never for autonomy.
Open to everyone
Open code you can inspect, run, adapt, and keep.
Not a startup. Not a foundation. Not a hobby shelf. Not finished - pre-1.0 is stated wherever it's true.
The portfolio

Start with the problem that feels familiar, or browse the flagships dealt face-up. Every page shows what exists today and the shortest honest path in.

4 flagships · 8 in all
Koan mascot 0.17 Koan· the foundation An opinionated, agent-native .NET meta-framework. Add what the business needs; keep the application readable.$ git clone --branch dev https://github.com/sylin-org/koan-framework Koi mascot 0.9 Koi· the local substrate See what is running, give it a stable .internal name, and make it trusted - no accounts, no cloud.$ koi mdns discover "It knows every stone in the pond by name." Ghostlight mascot 0.5 Ghostlight· the guardian Your real browser, for any MCP agent - visible, local, and yours.$ npx -y ghostlight install "A light left burning, so the halls stay safe." Zen Garden mascot 0.2 Zen Garden· the estate Turn spare computers into a small, sovereign service garden. Ask for what you need; Zen Garden tends the machinery beneath it.$ garden-rake offer mongodb "Old machines, tended into a garden."
The rest of the deck
SYLINOfficial toolworks GRW Sylin GROWING Agyo · os-tools SYLINOfficial toolworks RSR Sylin◆ SEALED ◆ RESEARCH Hokora · Nagi
The maker

These tools are the result of twenty-five years of building systems that other people trust. What that taught - that people keep what they can run themselves - is the idea behind everything here.

Meet Leo →