nord·no·de /ˈnɔʁt.noʊd/ noun
A small, self-hosted corner of the internet on the coast of Northern Germany. Projects, a homelab and local AI – all connected through one root node.
Fig. 01 — Tidal channels off Hallig Hooge and Pellworm. Nature’s own network.
No. 01 — Projects
Games, web apps, infrastructure and experiments. Built in spare time, kept independent on purpose – every project is a node of its own.
Fig. 02 — Shrimp cutter off Norddeich
No. 01 · Game
In developmentAn idle game on the North Sea coast – catch shrimp, build up your cutter fleet and become the biggest fishing business in the Wadden Sea.
Live on the web
No. 02 · Web · Business card
A modular digital business card – glassmorphism design, dark and light mode, multiple languages. Edit one content file and deploy. Running as martin-krebs.eu.
Fig. 03 — martin-krebs.eu, desktop and phone
No. 03 · Web · Productivity
A lightweight todo app that lives entirely in the browser – glassmorphism design, no server, no dependencies. Local-first, offline-ready and installable as a PWA.
Fig. 04 — flux-todo.eu, desktop and phone
At home
No. 04 · Infrastructure
Self-hosted services for media, storage and automation – run at home, on my own terms.
Fig. 05 — Racks after dark
No. 05 · AI
Open language models running on my own hardware – private by default, no cloud required.
Fig. 06 — Graphics chip under the microscope
No. 06 · Lab notes
Small tools, technical trials and ideas that don’t need a category of their own – yet.
Fig. 07 — Raspberry Pi as a network relay
No. 02 — Addons
Fig. 08 — Hühnergott: a flint with a hole, the coast’s lucky charm. The closest thing to a hearthstone up here.
World of Warcraft addons for Retail, WoW: Forever and Classic – lightweight, focused and open source. Built for my own interface, shared on GitHub and CurseForge.
No. 01 · Unit frames
Modern unit frames inspired by ShadowedUnitFrames – class-colored edges, rectangular portraits and a clean, focused layout.
No. 02 · Playtime
Your characters. Your time. A playtime tracker for every client – with a Windows companion that syncs playtime across clients and PCs.
+ Windows companionNo. 03 · Audio
Audio controls for master volume, sound effects and music – with sliders, percentages and a hearthstone-inspired UI.
World of Warcraft is a trademark of Blizzard Entertainment. These addons are independent fan projects and not affiliated with Blizzard.
No. 03 — Payments
Every payment passes a gate.
Fig. 09 — Holstentor, Lübeck: a gate of Hanseatic trade, once on the 50-mark note. Traffic streams past like transactions.
By day I work in digital payments. These are the tools I built around it – for preparing, sending and debugging Nexi / Computop Paygate payments.
No. 01 · Web · Payment testing
Free trial · Commercial licensePrepare, test and analyse Nexi / Computop Paygate integrations right in the browser – Hosted Payment Page, credit card form, Pay By Link and REST API V1/V2, with local request and response logs.
Fig. 11 — paygate.paytest.dev, desktop and phone
No. 02 · CLI · Go
Send real Nexi / Computop Paygate payments from your terminal – card payments, hosted payment pages and single payment methods, with a guided wizard when you leave out the flags.
Fig. 12 — three commands straight from the README
Unofficial tools – not made, endorsed or supported by Nexi or Computop. Nexi and Computop are trademarks of their respective owners.
Before there were networks, the coast was connected by light.
No. 04 — The lab
The root of nordno.de is public and lives on GitHub Pages. Everything else runs at home – on private nodes that are deliberately not listed here.
No. 05 — Ongoing
What keeps me busy outside of work. Side projects never really end – so there are no dates here, just what is on the bench.
No. 06 — About
A small independent corner of the internet, built in Northern Germany.
nordno.de is where my side projects live – games, self-hosted infrastructure and local AI. No ads, no tracking, no newsletter. Just one node in the North, and the things connected to it.
GitHub
