präsi · häh.ch

Things, explained by playing with them.

A small, growing set of interactive, click-through explainers — built to be poked at, not just read. Pick one below. Everything lives under *.häh.ch.

Agents · the AI coding loop

The AI Coding Loop

An interactive, click-through explainer of the agentic loop: you ask, the model acts, the harness feeds back — repeated until the work is done.

how-agents-code.häh.ch
Apache Kafka · field guide

The log, not the queue.

A developer's field guide to Apache Kafka — partitions, producers, consumer groups, offsets, delivery semantics, storage and the cluster, all as live playgrounds.

kafka-for-devs.häh.ch
AI literacy · for managers

Use the chatbot like a manager.

A hands-on course in using AI well: what a chatbot is and isn't, prompting, spotting confabulation, data minimisation, governance and adoption. Take each module as a lab or a podcast — and earn a shareable certificate.

ai-literacy.häh.ch
Argo CD & Helm · GitOps on Kubernetes

The cluster, reconciled.

An interactive study guide to GitOps delivery: Helm packages and templates your manifests, Argo CD continuously reconciles the cluster to the desired state in Git. Concepts, command crosswalks, hands-on labs, flashcards and a self-check quiz.

argocd-helm.häh.ch
Kubernetes · for developers

You declare; it reconciles.

A complete, self-service Kubernetes course for devs who know containers: the control-plane mental model, the API objects you touch daily, networking & security, delivery & debugging, tooling, and a module-by-module path to a capstone — all as live playgrounds.

kubernetes-for-devs.häh.ch
Architecture · AI-era governance

From code scarcity to controlled execution.

An interactive position paper for CIOs, CISOs and architects: AI makes software abundant, so the scarce capability becomes letting more software exist safely. Evidence checks, an access-decision simulator, a risk-tier calculator and a prompt-to-production walkthrough.

controlled-execution.häh.ch
More to come

Next one's brewing.

This hub grows as new explainers ship. Each gets its own *.häh.ch subdomain and a card here.

+ coming soon