● Writing for engineers

Writing for engineers
who care about the
inside of the machine.

Long-form essays, postmortems, and field notes on systems, performance, AI, and the discipline of shipping.

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2 essays

All career path Code Snippets Systems Optimization & Performance Engineering Tech_News

2 essays

Code SnippetsMay 16, 2026

PostgreSQL Peer Authentication Failed Fix

Learn how to install PostgreSQL and fix the “Peer authentication failed for user postgres” error on Linux systems using simple configuration changes and proper user setup.

Jozef ehj·7 min read

Code SnippetsMay 14, 2026

Oracle Free ARM VM Capacity Error Fix

Automatically create Oracle free VMs when regions are saturated. Use GitHub Actions and scheduled retries to keep attempting instance creation until capacity becomes available.

Jozef ehj·5 min read

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