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

Tools that stay yours.

Developer frameworks, home-lab infrastructure, and tools for AI agents. They run on your hardware, show you their work, and keep running long after you've stopped thinking about where they came from.

Explore the projects Read The Way
Responsible delight, built under The Way

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

Responsibility and delight are the same craft. A tool can be fast, calm and satisfying while it shows you its edges, its evidence, and how far along it really is.

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Local-first
Your hardware, your network. The whole path runs where you can see it.
Agent-native
Compact tools, and errors that tell the agent what to do next.
Continuity
An installed copy keeps working. A paid layer governs how tools are used; running them is free.
Open to everyone
Open code you can inspect, run, adapt, and keep.
One person, no investors, and no exit to work toward. The engines are open, free to run, and most of them are pre-1.0.
The portfolio

The flagships, dealt face-up. Every page shows what exists today and the clearest way to try it.

4 flagships · 9 in all
Koan mascot 0.20 Koan· the foundation An opinionated, agent-native .NET meta-framework. Add what the business needs; keep the application readable. Koi mascot 1.0 Koi· the local substrate Let containers, applications and devices find, trust and talk across your private network. "It knows every stone in the pond by name." Ghostlight mascot 0.8 Ghostlight· the guardian Let AI agents work in your signed-in Chromium browser while you watch and stay in control. Ghostlight MCP runs locally with compatible MCP clients. "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. "Old machines, tended into a garden."
The rest of the deck
SYLINOfficial toolworks GRW Sylin GROWING Agyo · Shiguchi · os-tools SYLINOfficial toolworks RSR Sylin◆ SEALED ◆ RESEARCH Hokora · Nagi
The Workbench

Useful right now.

Focused browser tools for the task in front of you. Open one and it works - your files stay in the tab, and you can download the tool and keep it.

Enter the workbench →
Ready on the workbench

Image Tools

Prepare images right here in the tab.

Downscale small artwork and see exactly what survives, or arrange several images into one clean contact sheet. It all happens in the tab you have open.

01

Pixel DownscalerReduce artwork while seeing exactly what survives.

02

Contact SheetArrange several images into one clean PNG.

Runs here · stays here · yours to keep

Open Image Tools Keep an offline copy ↓
The maker

Twenty-five years of building systems other people had to trust taught me one thing: people keep what they can run themselves. That idea is behind everything here.

Meet Leo →