BUILDING
THINGS
THAT WORK.

EXPLORE
7 SHIPPED
10+ BREWING

From selfhosted tools to fullstack SaaS. Seven are live, the rest are cooking.

Stuff I built

IT trainee, 17 years old, based in Germany. I build selfhosted tools and fast web apps. No framework worship, no buzzwords, no AI platitudes.

2Y SELFHOSTED

Everything runs on my Raspberry Pi. This site, the CI/CD webhook, and six other apps.

Give me the idea. I give you the product. Fast, clean, and live.

I code. I ship. That's it.

17 year old IT trainee from Germany, specializing in application development. I build selfhosted tools for my homelab and local network. From Kanban boards to network dashboards to offline Wikipedia archives.

I like shipping real projects, learning by doing, and making things that are actually useful. When I'm not coding, I'm probably tinkering with my Raspberry Pi or figuring out how to dockerize everything.

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01/04
PermitVault Open Source

The secret vault
for AI coding agents

Time locked access control for AI coding agents. You decide what gets shared, and for how long.

Get Started Source
Works with
Claude Cursor Windsurf Copilot MCP
PermitVault
Categories
Infrastructure8:474
API Keys2:134
Databases3
Certificates2
Cloud Providers5
Settings
MCP Server
Lock vault
Infrastructure4 secrets
production-server
[email protected]
database-primary
postgres.example.com
cdn-origin
origin.example.net
monitor-vpn
vpn.example.org

production-server

Infrastructure

  • Usernameadmin
  • Password••••••••••••••••
  • Websiteprod.example.com
  • SSH key••••••••••••••••
  • Modified2 days ago
02/04
Lemin Kanban Shipping

Kanban for
shipping, not meetings.

Drag and drop boards with keyboard shortcuts, MCP integration and zero signup friction. Built for devs who just want to ship.

Open leminkanban.de Source
Built with
Next.js 16 TypeScript SQLite MCP Hono
Lemin Kanban board with three columns of tasks
03/04
Help Book MIT

Docs that feel
like a book.

Drop in documentation framework in the Mintlify style. Warm orange accent, Ctrl+K search, GitHub Pages deploy, one liner install.

View Demo Source
One liner install
curl -sSL help-book.sh | bash
Help Book documentation page in dark mode
04/04
Netzwerk Manager Selfhosted

Your home network,
in one dashboard.

Monitor devices, DNS, services and Pi hole stats. Wake on LAN, SSH shutdowns, service restarts. All from a single screen. Runs my whole home lab.

View Docs Source
Stack
Node 20 Hono Wake on LAN SSH Pi hole TOTP
Netzwerk Manager analytics dashboard with device monitoring

Selected work.

Four projects. Scroll to browse.

View all 12 projects
Available for projects Germany / CET

Got an idea? Let's build it.

Drop me a mail [email protected]
GitHub @leminkozey TikTok @leminkozey Discord @leminkozey