Projects

Mock interviews, resume reviews and career coaching for engineers. MVPs, websites, technical SEO audits and fractional CTO work for companies.

Interviewer training, hiring audits and calibration for engineering teams. Run by Elman Huseynov, a tech hiring expert in Berlin.

A WordPress plugin that lets Claude, Cursor, ChatGPT and other AI agents safely run your site - posts, WooCommerce, SEO, images and more.

Registration-free group video calls - create a room, share the link, and talk face to face in seconds. Screen sharing and chat included.

Learn a language by doing nothing - ambient vocabulary that drifts by while you work, on desktop and mobile. 7 languages, fully offline.

A city guide for Berlin on a vintage treasure-map. See the landmarks, read their history, and save your favourites. Works offline. Coming soon to iOS & Android.

An open-source, AI first CMS you run from your AI assistant. Manage content, media and moderation from Claude Desktop, ChatGPT or any MCP client.

Realtime group chat with no sign-up - create a room, share the ID and password, and talk live over WebSockets. No accounts, no database, ephemeral by design.

A calendar-memories app - pin your photos to the days they happened, follow friends, and comment on and tag people in each other's moments. Built with React Native and AWS Amplify.

A 133-step, build-in-public path from an empty machine to a multi-cloud, Zero-Trust system, ending with 26 real big-company outages rebuilt in miniature. Build one real app with an AI coding agent and learn to defend the decisions.

Learn data structures and algorithms once and actually remember them. Each one taught from plain theory and the real place it runs, with an AI tutor that drills you until it sticks.

Learn the Linux terminal from zero, then run your own server. About 95 steps: the first 63 in real Linux inside your browser tab, the rest on a VPS you rent, with every task checked by a script. Steps 0-17 are free.

One canonical set of engineering practices for AI coding agents, loaded only when a task needs them. Works with Claude Code, Codex, Copilot, Cursor and Antigravity, plus a tool-agnostic test gate on git push.

Chess in a 3D stone hall, in your browser. Pieces walk to their square and captured ones break into stone. Play the computer or other players online. Free, no ads.

Voice mock interviews with an AI interviewer for engineering leaders, from Tech Lead to CTO, and product leaders, from APM to CPO. It reads your CV, scores every answer on the hiring scale, and covers 30+ companies. Invite-only beta.

Practice for the code review interview. 30 lessons and 45 review tasks in JavaScript, TypeScript and PHP: you comment on lines, and a checker in your browser ticks each planted issue as you find it. A voice mock interview opens after the last lesson.

GenAI engineering from zero to senior in 291 short steps: prompting, token economy, harnesses, MCP, skills, multi-agent workflows, RAG, evals, fine-tuning, AI for marketing, sales, content and video, and AI system design. A 20-step no-code branch for business teams. Steps 0-20 are free.

DevOps from zero to production in 313 small steps on one real app: Linux, containers, CI/CD, Terraform, Kubernetes, observability, AWS, GCP and Azure. Then 26 real outages rebuilt small, FinOps and how to sell automation to a company.

Data engineering from zero to mid/senior in 433 short steps: terminal, Python and SQL from the first command, then data modeling, distributed systems, Spark, lakehouse tables, Airflow, dbt, Kubernetes, AWS, GCP, Azure, Kafka and data for ML and AI. 14 production incidents to fix yourself. Steps 0-30 are free.

Network engineering from zero to mid/senior in 341 short steps: IP and subnetting, switching, OSPF, BGP, IPv6, multicast, VPN and SD-WAN, MPLS, EVPN-VXLAN and AI fabrics, firewalls, Wi-Fi, AWS and Azure networking, Python and NetDevOps, real troubleshooting tickets. Real Cisco, Juniper and Arista labs on your laptop. Steps 0-21 are free.