Lernen
Learn to think before you prompt.
Demanding, Socratic, AI-era courses and tools that build genuine competence. The tutor won't write your code, hand you answers, or confirm a flag — it enforces the discipline that turns months of work into evidence you can defend.
Courses & Tools
Vigil
12-month, lab-driven cybersecurity course — complete novice to working practitioner, with a public portfolio.
Agentwright
12-month agentic-engineering course — zero coding to deploying always-on, value-generating AI systems. Free on macOS.
Muster
Pattern-first LeetCode & coding-interview mastery in Python. Build the recognition reflex, not a pile of memorized solutions.
Wachturm
Self-hosted Tier-1 SOC analyst training — real tools (Wazuh, DFIR-IRIS, Cortex), scripted incidents, Docker.
Lernen
A command-line tutor for genuine fluency in one programming language — structurally prevented from writing your code.
Lernen Praxis
An in-host skill that coaches the safe, efficient, effective use of agentic coding tools — on your real work.
How our courses are different
- Concept first, command second. No tool runs until you can explain what it does to the wire, the disk, or the kernel.
- The struggle floor. A fixed window of unaided work before any hint or walkthrough.
- Hints, not answers. A rung-by-rung hint ladder; the tutor never hands you the solution or confirms a flag.
- Spaced repetition is the curriculum. Prior work pulled back and re-solved cold, on a schedule.
- AI is an apprentice's tool, not a crutch. Fundamentals stay AI-free; augmentation unlocks under provenance discipline.