Method

Measure first. Teach second. Do not invent a title to carry the sentence.

Rules that stay on the page

• Knowledge is free. No visit required. Online only.
• White Hat only. Commands are metaphors on your own machines. Nothing is executed against a third party.
• Consent first. Attribution and reciprocity. Small shared core, local project.
• School record and platform exams stay on two lines. They are not the same object. Platform exams live on Exams.
• Affiliate work is marked in the sentence when money is involved.

Operator facts used here

• Systems administrator since 2002. Webmin, Virtualmin, CentOS first. Later machines include Linode, Vercel, DigitalOcean.
• Default is self-host when speed is not the priority.
• Educator in informatics, IT, and AI. Independent. Never employed by Serbian state institutions.
• Vukova diploma, OŠ Nikola Tesla, Vinča, 11 June 1998. Subjects on that school diploma: English, biology, physics, mathematics.
• No doctorate. Diploma thesis unfinished. Then remote work for a Canadian company.

Anyone can ask for additions or sources on a stated fact.