Understand AI and judge an answer
Get a clear picture of what AI does, then learn to check an answer and compare two setups.
See the reading orderStart with AI or Linux. Build a small project, test what it does and learn to investigate when it fails.
New to AI, ready to build, or already operating systems? Choose a short tour. Open any step directly; nothing is locked behind an account.
Get a clear picture of what AI does, then learn to check an answer and compare two setups.
See the reading orderTrace context, retrieval and evidence, then build a local keyword-search baseline with a manual handoff to a model.
See the reading orderFollow a proposed action through authorization, interrupted execution and an independent evaluation.
See the reading orderFollow a complete sequence of lessons, with examples and exercises that build toward a working project.
The model
Learning path 01
Follow a request through a model. Learn to test its answers, give it useful context and decide when to trust the result.
Open the AI syllabus10 of 10 lessons available

The machine
Learning path 02
Follow the files, processes and connections that make a service work. Build one, break it in a safe lab and learn how to investigate.
Open the Linux syllabus13 of 13 lessons available

A page from the AI path
That is a different question. Try this short exercise: read the service note, make your call and check the explanation.
A small example. A useful distinction.
The health check tests the web process. A separate worker sends receipts. No delivery result is included.
What can you conclude from this note?
Choose an answer to see the explanation.
Explore three more paths.
Every lesson is ready to read.
Choose what reliable means for a service, then decide what to improve.
Coordinate the people, decisions and communication during a disruption.
Turn a question about a system into an investigation.